PRISM 3001 FT1/T1 CSU/DSU

Transcription

1 PRISM 300 FT/T CSU/DSU T R A N S P O R T February 998

2 Copyright / Liability 998 TxPORT, All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form by any means without the written permission of TxPORT. Reorder # th Edition, February 998 TxPORT shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. TxPORT reserves the right to revise this publication from time to time and make changes in content without obligation to notify any person of such revision changes. Contents of this publication may be preliminary and/or may be changed at any time without notice and shall not be regarded as a warranty. Documentation Disclaimer TxPORT makes no representation or warranties of any kind whatsoever with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.

3 Table of Contents General Introduction Features Specifications Network Interface Equipment Interface User Interface Diagnostics Alarms Power Mechanical Environmental Compatibility Industry Listings FCC Requirements Canadian Emissions Requirements Warranty Ordering Numbers TxPORT Customer Service Product Technical Support Acknowledgment Installation Introduction Safety Summary Unpacking and Inspection Supplied Materials Mounting Stand-alone Unit Chassis Assembly Unit Configuration Configuration Switch S Network Framing Network Coding Network LBO Bit Rates Clock Source Channel Assignment Address Switch S Configuration Switch S NMS Bit Rate Supervisory Port Bit Rate Boot Mode Boot from switch settings Boot from RAM Boot from manager Boot from ROM Rate Multiplier S Rotary Switch S T DTE Switch S T DTE Line Framing T DTE Line Coding T TE LBO Supervisory Port Connection High-speed Port Connection NMS Connection SUPV NMS IN/OUT NMS Split Cable NMS IN Only Chassis Operation T DTE Port Connection Network Connection Disconnection Notice: /External Clock Connection Alarm Connection Stand-alone Unit Chassis Unit Power Connection Stand-alone Unit Chassis Unit Redundant Power Source Single Power Source Dual Power Source Operation Introduction Front Panel Controls and Indicators General Status Indicators Alarm Controls and Indicators Test Controls and Indicators Front Panel Testing Test Switch Test Access Jacks BERT Pattern Select Supervisory Port Terminal Operation Introduction System Description Modem Compatibility Screen Components Device Type and Revision Date/Time Element ID/Unit Address Menu Title Messages iii

4 Interface Start Up Cursor Contros Field Types Main Menu Screen Alarms Screen Element /DTE Alarms (alarm status): Power Loss Seconds Reset Alarm Registers Performance Screens Element Target USER USER DTE TELCO TELCO DTE Error Events Reset Performance Registers Standard 24 Hour Status Completed Days Completed Intervals Hr.% Error Free (performance data) Maintenance Screen Clear Tests Clear Alarms Test Loops T Loop T Unloop Port Unloop Bit Error Rate Testing (BERT) BERT Pattern Test Length Start Test Reset Errors Pattern Sync Elapsed Time Bit Errors Errored Seconds % EFS Line Fault and Loop Status /DTE Status Near Loops Far Loops Configuration Screens Line Parameters T- Framing T- Line Code T- LBO PRM Enable Zero Suppression T- Timing INTERNAL T DTE PORT WORK STATION Station Timing Remote Comm Channel T-DTE Framing T-DTE Line Code T-DTE DSX Level D/I Start Channel # of Channels Channel Allocation Alarm Parameters Errored Seconds Severely Errored Seconds Loss of Signal Seconds Unavailable Seconds DTE LOS/LOF Seconds Remote Alarm Seconds AIS Seconds Out of Frame Seconds BPV Seconds Alarm Reset Timer Port Parameters Channel Allocation Port # Rate Multiplier DS0 Channel Assignment Start Channel # Port Rate # of Channels Transmit Clock V.54 Loop Invert Data CTS,DSR, and DCD Control Utilities Screen Set Time Set Date Alarm Notification OFF DIRECT DIAL DIAL NMS Primary Phone#, Secondary Phone# Element ID New Password Maintenance Reset iv

5 2 7 GENERAL Introduction The TxPORT PRISM 300 (Figure -) is a modular, single port, fractional T CSU/DSU. The unit allows connection of high-speed digital data to a T facility. V.35- or EIA530- compatible high-speed port interfaces are available which support port rates from 56 kbps to.536 Mbps. The interface to the T network is made through an integral ESF CSU which provides full performance monitoring of the T span and is compliant with T.403, TR624, and TR ESF CSU/DSU TD RD RTS DTR S U P V ACO SW V.35 ACO BV/CR/FE D LOS/OOF TE N AIS E T REM ALM LOC ALM FAR LLB PLB FLB TST ERR PAT SEL T S T LOC Figure - PRISM 300 Stand-alone The unit is available with a second DSX level T interface to support drop and insert applications. Network bandwidth may be allocated as needed between the high-speed data port and the T DTE port, allowing the integration of data and voice traffic across a single T facility. The TxPORT PRISM 300 provides the powerful feature set of the multiport TxPORT PRISM 3000 in one of the most compact packages in the industry. The 300 module can be installed in either a single unit housing or in the 05-2 nest mount chassis which holds up to twelve units. Power supplies are available to meet the requirements of small to large installations, including full redundancy.

6 -2 GENERAL The unit may be controlled through a VT00 terminal or a computer with ANSI terminal emulation software. If used with the EM8000 Element Manager or 800A Site Controller, the entire T network can be monitored and controlled from a central location. LED indicators are provided on the front panel of the unit to alert local personnel of alarm conditions, loop and test status, and DTE port activity. A test switch allows local and remote loops to be activated as well as BERT tests. Although all configuration parameters are software selectable from the terminal interface or the network manager, configuration switches are provided on the unit to allow operation without the use of a management interface. Features Stand-alone housing or chassis nest mounting Integral full function D4/ESF CSU Multiple loopback functions including BERT test patterns and in-band fractional loops Selectable facility ALBO levels and DTE DSX levels Flash memory allowing field upgrades of firmware Selectable alarms, programmable alarm parameters and monitoring, and isolated alarm relay contacts High-speed data port supporting both internal and external clocking Thirty day storage of T line performance information Optional EM8000 Element Manager and 800A Site Controller Specifications Network Interface Line Rate:.544 Mbps, ± 50 ppm Line Framing: D4 or ESF Line Code: AMI or B8ZS Input Signal: DS, 0 to -27 db ALBO Connection: RJ-48C modular jack (00 Ω, ± 5%) or terminal block Output Signal: DS, 3.0 V (±0%) base-peak into 00 Ω with protection Line Build Out: 0, -7.5, -5, and db attenuation Line Protection: 000 V lightning, fused input and output Jitter Control: per TR624 and T.403 Pulse Density: 5 or 75 zeros Timing Source: Internal, recovered line clock, station clock, external DTE

7 Specifications -3 Equipment Interface T DTE port: optional Line Rate:.544 Mbps, ±50 ppm Line Framing: D4 or ESF Line Code: AMI or B8ZS Input Signal: DSX to -6 db Connection: RJ-48C modular jack (00 Ω, ± 5%) Output Signal: Selectable DSX level from 0 to 655 feet in six increments high-speed data EIA-530 (RS-422), female DB-25 port compatibility: ITU V.35, female DB-25, and female 34-pin through adapter cable Data Rate: Synchronous, N 56 or N 64 kbps (N = to 24) Clocking: Internal or external Data Invert: Enable or disable User Interface Supervisory port: Element Manager Site Controller: RS pin modular connector, 200 to 9200 baud RS pin modular connector, 200 to 9200 baud (In and Out) Diagnostics Performance: TR5406 and T.403 monitoring T Interface Loops: Line loopback or payload loopback Fractional Loop: high-speed bidirectional port loop responds to in-band V.54 loop code T DTE Loops: Loop toward DTE or network BERT: Multiple test patterns toward network or DTE ports Alarms Activation: Programmable thresholds Reporting: Front panel LEDs, COA, NO/NC contacts, the EM8000 Element Manager, and 800A Site Controller Contact Ratings: UL 0.3 A at 0 VAC.0 A at 30 VDC Connection: Terminal block Power DC Power: -48 VDC (±0%), 65 ma max, 8 watts, 27 BTU maximum Connection: Terminal block

8 -4 GENERAL Mechanical Stand-alone: Mounting: desktop, wall, horizontal or vertical rack, and vertical nest mount Dimensions:.75" (4.45 cm) wide, 7" (7.78 cm) high, 0.5" (26.67 cm) deep Weight: 3 pounds, 7 ounces (.56 kg) Chassis: Mounting: 9" or 23" rack Dimensions: 9" (48.3 cm) wide, 7" (7.8 cm) high, 0.5" (26.7 cm) deep Weight: 3 pounds, 7 ounces (.56 kg) Environmental Operating Temp: 0 to 50 C (32 to 22 F) Storage Temp: -20 to 85 C (-4 to 85 F) Humidity: 95% max (non-condensing) Compatibility TR624: December, 990 TR5406: September, 989 TR5409A: April, 988 T.403: 989 Industry Listings FCC Compliance: Part 5 Subpart B, Class A, Part 68 US Safety: UL 459, 2nd Edition Canadian Safety: CSA C222, No. 225-M90 Industry Canada: CS-03 FCC Requirements! WARNING: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment. This device complies with Part 5 of the FCC rules. Operation is subject to the following two conditions: This device may not cause harmful interference. 2 This device must accept any interference received, including interference that may cause undesired operation.

9 FCC Requirements -5 This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 5 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference. The user will be required to correct the interference at his own expense. Shielded cables must be used with this unit to ensure compliance with the Class A FCC limits. Notice to Users of.544 Mbps Service: The following instructions are provided to ensure compliance with FCC Rules, Part 68: All direct connections to T lines must be made using standard plugs and jacks. 2 Before connecting your unit, you must inform the local telephone company of the following information: Port ID: P/N/ REN/SOC (Service Order Code): 6.0 N FIC (Facility Interface Code): 04DU9- BN 04DU9-DN 04DU9-IKN 04DU9-ISN USOC jack: RJ-48C 3 If the unit appears to be malfunctioning, it should be disconnected from the telephone lines until you learn whether the source of trouble is your equipment or the telephone line. If your equipment needs repair, it should not be reconnected until it is repaired. 4 The unit has been designed to prevent harm to the T network. If the telephone company finds that the equipment is exceeding tolerable parameters, they can temporarily disconnect service. In this case, the telephone company will give you advance notice, if possible. 5 Under FCC rules, no customer is authorized to repair this equipment. This restriction applies regardless of whether the equipment is in or out of warranty. 6 If the telephone company alters their equipment in a manner that will affect the use of this device, they must give you advance warning so that you can have the opportunity for uninterrupted service. You will be advised of your right to file a complaint with the FCC. 7 The attached affidavit must be completed by the installer. 8 In the event of equipment malfunction, all repairs should be performed by our company or an authorized agent. It is the responsibility of users requiring service to report the need for service to our company or to one of our authorized agents.

10 -6 GENERAL Canadian Emissions Requirements This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. End users should use existing 48 VDC battery sources or a CSA-certified power supply. Le présent appareil numérique n émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques (de la class A) prescrites dans le Règlement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada. Warranty TxPORT warrants each unit against defects in material and workmanship for a period of five years from the date the unit was shipped to the customer. If the unit malfunctions at any time during the warranty period, TxPORT will repair, or at TxPORT s option, replace the unit free of charge. The remedies listed herein are the user s sole and exclusive remedies. TxPORT shall not be liable for any indirect, direct, incidental or consequential damages. The owner must return the unit to the factory, shipping prepaid and packaged to the best commercial standard for electronic equipment. TxPORT will pay shipping charges for delivery on return. The customer is responsible for mode and cost of shipment to TxPORT. This warranty does not apply if the unit has been damaged by accident, misuse or as a result of service or modification by other than TxPORT personnel. When returning the unit for warranty work, a Return Material Authorization (RMA) number must be obtained from customer service at the address/phone number given below. When calling TxPORT to obtain a Return Material Authorization number or to arrange service, please have the following information available: Model number(s) and serial number(s) for the unit(s). Reason for return and symptoms of problem. Warranty status (if known). Purchase order number to cover charges for out-of-warranty items. Name and phone number of person we can contact if we have questions about the unit(s). Mode of shipment required (second day air is the normal mode of shipment for all returned material unless otherwise specified). As soon as TxPORT has the above information, the RMA that must accompany the item(s) returned can be issued.

11 Ordering Numbers -7 Ordering Numbers This unit is shipped from the factory with the PRISM 300 reference manual. The part numbers for the stand-alone unit and the modular chassis unit are shown in Table -. Table - PRISM 300 Options Part Number F-300-A0-B0DE A 0 5 B 2 3 D 2 3 E 0 F-300-A-B0DE0 A 0 5 B 2 3 D 2 3 E 0 Description PRISM 300 stand-alone unit Test jacks No test jacks Bantam jacks Special option Standard unit RS-423 station clock input Bidirectional loop DTE port option V.35 EIA-530 DSX T DTE option Not installed DSX T DTE port PRISM 300 module (chassis) Test jacks No test jacks Bantam jacks Special option Standard unit RS-423 station clock input Bidirectional loop DTE port option V.35 EIA-530 DSX T DTE option Not installed DSX T DTE port

12 -8 GENERAL The following optional accessories may also be needed for the installation and operation of the TxPORT PRISM 300. Table -2 Optional Equipment Part Number Description / T DTE Cables pin mod to 8-pin mod (4 twisted pairs) T cross-over kit, ft Supervisory Cables pin mod to 5-pin D-type adapter, male 8-pin mod to 5-pin D-adapter, female DB-25 male to 6-pin RJ- (modem to SUPV) DB-25 female to 6-pin RJ- (modem to SUPV) DB-25 male to 6-pin RJ- (terminal to SUPV) DB-25 female to 6-pin RJ- (terminal to SUPV) DB-9 female to 6-pin RJ- (terminal to SUPV) DB-25 male to two 6-pin RJ- (term. to NMS) DB-25 female to 6-pin RJ- (term. to NMS) V.35 Cables V.35 male to male null cable V.35 male to male cable V.35 male to female cable EIA-530 Cables N EIA-530 male to male null cable EIA-530 male to male cable EIA-530 male to female cable RS-449 Cables 9-564A A A-038- Chassis Mount Kits F F F F RS-449 male to EIA-530 male RS-449 male to EIA-530 female RS-449 to EIA-530 null cable, male to male 05-2 chassis (RJ-48C) 9" single unit rack mount adapter 9" dual rack mount adapter 23" single unit rack mount adapter 23" dual rack mount adapter Power supply shelf with single/redundant -48 VDC, 2 A supply 200 power supply with redundant -48 VDC, 5 A with fuse panel amp wall mount power supply Miscellaneous EM8000 with manual on 3½ inch disk (DOS and UNIX version, respectively) DB-25 male to V.35 male DB-25 male to V.35 female DB-25 male to DB-25 male, : DB-25 female to DB-25 female, :

13 TxPORT Customer Service -9 TxPORT Customer Service TxPORT 27 Jetplex Circle Madison, Alabama Telephone Numbers: or Sales/Administration FAX: Manufacturing FAX: Customer Service Returns: , ext. 227 Product Technical Support Normal Hours (8 a.m. to 5 p.m. Central Time, Monday through Friday) or , ext. 255 Emergency (nights/weekends/holidays) Telephone: (Internet Address): support@txport.com Acknowledgment The software used in the SNMP function of this product contains material derived from the following source: Copyright 989 by the Regents of the University of California. All rights reserved. Redistributions in binary form must reproduce the above copyright notice, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution. All advertising materials mentioning features or use of this software must display the following acknowledgment: This product includes software developed by the University of California, Berkeley and its contributors. Neither the name of the University nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. This software is provided by the regents and contributors as is and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the regents or contributors be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such damage.

14 -0 GENERAL

15 2 INSTALLATION Introduction This chapter contains information and instructions required to prepare the TxPORT PRISM 300 for use. Included are initial inspection procedures, mounting instructions, configuration guidelines, connection instructions, and powering information. Throughout this manual, all factory default settings are shown underlined. Safety Summary This manual contains information and warnings which must be followed to ensure safe operation and to retain the equipment in a safe condition. The WARNING sign denotes a hazard to the operator. It calls attention to a procedure or practice which, if not correctly performed or adhered to, could result in! injury or loss of life. Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met. Follow proper ESD (electrostatic discharge) procedures while handling the circuit boards. Unpacking and Inspection This unit is carefully packaged to prevent damage in shipment. Upon receipt, inspect the shipping container for damage. If the shipping container or cushioning material is damaged, notify the carrier immediately and make a notation on the delivery receipt that the container was damaged (if possible, obtain the signature and name of the person making delivery). Retain the packaging material until the contents of the shipment have been checked for completeness and the instrument has been checked both mechanically and electrically. If the contents of the shipment are incomplete or, if there is mechanical damage or defect, notify TxPORT. If the shipping container is also damaged, or the cushioning material shows signs of stress, notify the carrier of the damage as well as TxPORT. Keep the shipping materials for carrier s inspection. TxPORT will arrange for repair or replacement without waiting for claim settlement. Supplied Materials The PRISM 300 is shipped from the factory with the PRISM 300 reference manual. The following additional materials may be required for the installation and operation of the PRISM VDC power source Network and DTE interface cables 20-gauge stranded wire (or similar) for DC power and alarm connection

16 2-2 INSTALLATION For specific applications, additional cables and adapters may be required. The interface requirements of any application may be met by using the appropriate cable. Contact TxPORT for any needed assistance in cable selection. Mounting Stand-alone Unit The 300 is a modular unit that plugs into either a single unit housing or into a chassis that holds up to 2 units. Single units are designed for stand-alone desktop use, wall mounting, or chassis mounting (in either a vertical or horizontal orientation). The 300 uses an interchangeable front panel to accommodate the chassis card cage. To access the circuit boards and configuration switches, perform the following procedure. Observe proper electrostatic device handling procedures while holding the circuit boards. Open the front panel access door and remove it by gently bending the plastic from the middle using both hands. 2 Pull the two side strips of plastic from the middle outwards until the four stops are clear of the front panel. 3 Pull the cover off the front panel. 4 Remove the two screws and pull the front panel and circuit boards out of the housing. The stand-alone unit may be used in a chassis installation with the following modifications. Remove the housing as described above and then remove the four screws holding the front panel to the circuit boards. 2 Replace the stand-alone front panel with a module type front panel. The unit can now slide into one of the 2 slots in the chassis. Chassis Assembly Unit Configuration Up to twelve PRISM 300 units may be inserted into a chassis and the chassis may be installed into a 9- or 23-inch rack using four screws. Connections are made from the rear of the chassis (refer to the illustrations on page 2-9). The PRISM 300 can be software configured in the same manner as the multiport PRISM 3000 by using a terminal connection to either the front panel Supervisory access port or the rear panel NMS IN port. The TxPORT EM8000 Element Manager and 800A Site Controller may also be used to configure the unit by using the same ports. The terminal interface, element manager, and site controller provide a broader set of capabilities than by using the configuration switches. The 300 provides non-volatile memory retention of unit configuration in the event of power failure. This feature allows the unit to automatically restore normal service following a power loss. Note, however, that when the unit is stored without power for an extended period, the battery may drain and some parameters may become corrupted.

17 Unit Configuration 2-3 Alarm Figure 2- Top-edge View of PRISM 300 Therefore, when the unit is first received for installation or if power has not been applied for an extended period of time, the configuration should be verified using either the terminal interface, element manager, or site controller. The battery becomes fully charged after power has been applied for 60 hours. Hardware switches on the side of the circuit boards provide the means to configure most simple applications. These configuration switches are described in the following paragraphs. When power is applied to the unit, the front panel indicators flash for approximately 0 seconds as the unit executes a self-test function. If an ambiguous configuration has been programmed, the front panel indicators continue to flash after the self-test is completed. The configuration must then be reviewed to correct the error. The unit is hardware configured using three DIP switches, a rotary switch, and two jumpers. All are located on the top edge of the circuit boards (refer to Figure 2- above). The front panel rotary switch selects BERT patterns and is described in the Operations chapter. The numbering system used for each switch position is as follows: Position 2 of Switch S4 is referred to as Switch S4-2, and so on. Before installation, verify each configuration switch setting. A removable configuration guide is included in the rear of this manual to record option selections for reference. S7 S6 S5 S4 Configuration Switch S4 Switch S4 is used to set the configuration parameters listed in the following paragraphs. Dn Up Network Framing Network Coding Network LBO 2 3 Network LBO 4 Bit Rates 5 Clock Source 6 Clock Source Channel Assignment 7 8 Figure 2-2 Switch S4 Network Framing Position S4- is used to match the unit to the framing of the network line. Down: ESF Up: D4

18 2-4 INSTALLATION Network Coding Position S4-2 sets the network line coding to AMI or B8ZS. Down: AMI Up: B8ZS Network LBO Positions S4-3 and S4-4 set the line build out signal level of the transmit data (TXD) from the unit to the network. The output level is factory set at 0 db. It may be attenuated by -7.5 db, -5 db, or db if operating conditions require that it be changed. The telco should provide the proper setting to the user. If unsure of the exact setting, then leave it at the default value. The values are listed in the following table. Table 2- Network Line Build Out S4-3 S4-4 Network LBO Down Down 0 db Up Down -7.5 db Down Up -5.0 db Up Up db Bit Rates Position S4-5 works in conjunction with rotary switch S7 to set bit rate configurations. Refer to Rotary Switch S7 on page 2-7 for further information. The missing rates are N 56 and N 64, where N=5,7, 2, and 23. All 24 rate configurations can be programmed through software control by using the NMS or SUPV ports. Clock Source Positions S4-6 and S4-7 determine the source of unit clocking. The most common timing source for most CSU/DSU applications is to derive timing from the network. The 300 may also be optioned to time from an internal standard, from the T DTE, or from the high-speed data interface as shown in Table 2-2. Table 2-2 Timing Source S4-6 S4-7 Timing Source Down Down Internal Up Down Network Down Up T DTE Up Up high-speed port Channel Assignment Position S4-8 selects the channel assignment mode for network T DS0s that carry data to the high-speed port. Contiguous assignment assigns the channels as a block beginning at channel one. For example, if the high-speed port data rate is to be 256 kbps (as defined by rotary switch S7 in on page 2-7), the unit would assign network channels through 4 to the high-speed port.

19 Unit Configuration 2-5 If the Alternate channel mode is selected, channel assignments are made with an idle channel following each data channel. For the above example, data would be carried on channels, 3, 5, and 7 and channels 2, 4, 6, and 8 would be set idle (set to binary code 0). The advantage of alternate channel assignment is that T ones density requirements are maintained by the idle channels rather that placing any restrictions on the high-speed data. Down: Contiguous Up: Alternate Address Switch S5 Switch S5 is used to set the unit address. When using the EM8000 Element Manager, 800A Site Controller, or other network manager controlled products with the 300, each element in a group must have a unique unit address. Up to 250 units (with addresses from to 250) can exist in a group. If the unit is not connected to a network manager, the NMS unit address should be left at the factory default setting of. LSB Binary values MSB Dn Up Figure 2-3 Switch S5 Switch S5 has 8 positions used to create an 8-bit binary code for an address in the range of to 252. Switch position S5- is the least significant bit (LSB) and S5-8 is the most significant bit (MSB). If a switch is down, its value is 0 and if it is up, its value is that of the upper location. The values are additive. For example, to set a unit address to five (5), position S5-3 (binary value = 4) and position S5- (binary value = ) would be set Up for a unit address of 5 (4 + ). All other positions would be set down. Configuration Switch S6 Switch S6 is used to set the configuration parameters listed in the following paragraphs. Dn Up NMS Rate NMS Rate SUPV Rate 2 3 SUPV Rate 4 Boot Mode 5 Boot Mode 6 Multiplier 7 Not used 8 Figure 2-4 Switch S6

20 2-6 INSTALLATION NMS Bit Rate Positions S6- and S6-2 are used to set the NMS port bit rate. This is a serial RS-232 DCE port configured for 8 bits, no parity, and stop bit. The table below shows the available speeds. Table 2-3 NMS Port Bit Rate S6- S6-2 NMS Port Bit Rate Down Down 9200 bps Up Down 9600 bps Down Up 2400 bps Up Up 200 bps Supervisory Port Bit Rate Positions S6-3 and S6-4 are used to set the supervisory port bit rate. This is a serial RS-232 DCE port configured for 8 bits, no parity, and stop bit. Table 2-4 shows the available speeds. Table 2-4 SUPV Port Rate S6-3 S6-4 SUPV Port Rate Down Down 9200 bps Up Down 9600 bps Down Up 2400 bps Up Up 200 bps Boot Mode Positions S6-5 and S6-6 are used to set the power up configuration mode as shown in Table 2-5. Table 2-5 Boot Mode S6-5 S6-6 Power-up Mode Down Down Boot from switch settings Up Down Boot from RAM Down Up Boot from manager Up Up Boot from ROM Boot from switch settings. Upon reset, the unit reads its configuration from all the hardware switch settings. Boot from RAM. Upon reset, the unit reads its configuration from the internal, battery-backed RAM. Boot from manager. Upon reset, the unit requests configuration information from the manager. If the manager is not on-line, the unit boots from RAM. Boot from ROM. Upon reset, the unit reads its configuration from the internal ROM. The ROM factory default settings are as follows.

21 Unit Configuration 2-7 Framing: DTE Framing: Line Code: DTE Line Code: Timing: LBO: DTE DSX level: PRM Enable: Zero Suppression: high-speed Port: ESF ESF AMI AMI Internal 0 db 0-0 feet Disabled Enabled Disabled Rate Multiplier Position S6-7 is used to set the multiplier for the input timing. The unit can operate at any data rate that is a multiple of 56 or 64 kbps. Selecting N 64K provides port bit rates that are multiples of 64 kbps. The ones density requirements of the T network line must be ensured in this mode. Selecting N 56K allows port bit rates that are multiples of 56 kbps. The unit maintains ones density for the selected DS0 channel in this mode. Down: N 64K Up: N 56K S6-8 This switch is not used. Rotary Switch S7 This 0-position rotary switch works in conjunction with S6-7 and S4-8 to select high-speed port bit rates. Switch S6-7 selects the rate multiplier as either N 64 or N 56 (refer to Rate Multiplier in the previous paragraph). Switch S4-8 selects either the Contiguous or Alternate mode for the network DS0s to carry data (refer to Channel Assignment in Configuration Switch S4 on page 2-3). Switch S4-5 is used to select the bit rates as shown in Table 2-6. Table 2-6 High-speed Port Bit Rates Switch w/s4-5 down w/s4-5 up S

22 2-8 INSTALLATION 20 out of the 24 possible bit rate configurations are available through these hardware settings. The missing rates are N 56 and N 64, where N = 5, 7, 2, and 23. All 24 rate configurations can be programmed through software control by using the NMS or supervisory ports. The terminal interface program also allows the high-speed port to be mapped to a block of DS0s that begins at a userselectable starting channel. For units equipped with the T DTE port option, channel numbers beyond those assigned to the high-speed port are automatically mapped through to the T DTE. In the alternate channel mode, every data channel is followed by an idle channel assignment. Therefore, the even channels are quiet and are not available to the T DTE port. T DTE Switch S8 The optional T DTE port circuit board allows for drop and insert applications. DIP Switch S8 is located on this board which is on the opposite side of the unit from the main circuit board). Dn Up DTE Framing DTE Coding DTE LBO 2 3 DTE LBO 4 DTE LBO 5 Not Used 6 Not Used 7 Not Used 8 Figure 2-5 Switch S8 T DTE Line Framing Position S8- is used to set the framing of the T DTE line. Down: ESF Up: D4 T DTE Line Coding Position S8-2 sets the line coding for either AMI or B8ZS zero suppression. Down: AMI Up: B8ZS T DTE LBO Positions S8-3, S8-4, and S8-5 set the line build out to one of the values listed below. The transmit output level is selectable according to the cable length between the unit and the T equipment (PABX, channel bank, etc.). The factory default setting is 0-0 feet. Table 2-7 T DTE Line Build Out S8-3 S8-4 S8-5 DTE LBO Down Down Down 0-0 ft Up Down Down ft Down Up Down ft Up Up Down ft Down Down Up ft Up Down Up ft Down Up Up > 655 ft

23 Supervisory Port Connection 2-9 Supervisory Port Connection The front panel supervisory port serves several functions. A modem may be connected to the SUPV port for remote access or use of the COA (call on alarm) feature. For cabling convenience, the supervisory port may be used to connect the element manager into the 300 network (refer to NMS Connection on page 2-0). The supervisory port bit rate is set by configuration Switch S6. The port is a serial RS-232 DCE port configured for 8 bits, no parity, and stop bit. The physical connection is a 6-pin modular jack with the pinout shown in Table 2-8. Table 2-8 SUPV Port Pinout Pin SUPV Port Interface Control Out 2 Signal Ground 3 Data Out 4 Data In 5 Signal Ground 6 Control In NMS IN 6 NMS OUT 8 T D/I 8 WORK ALARM/POWER 4 DTE PORT NTWK/EXT CLK 6 48 VDC Figure 2-6 PRISM 300 Stand-alone Rear Panel High-speed Port Connection The high-speed port connection [on the rear panel of both the stand-alone (Figure 2-6) and the chassis unit (Figure 2-)] utilizes a female subminiature DB-25 connector. If the unit is connected to an EIA-530 DTE-type device, a one-to-one DB-25 cable is all that is needed. If the unit is connected to an RS449-compatible interface, an adapter cable must be used to match the 37-pin RS-449 standard. The V.35 option also requires an appropriate adapter cable to connect to devices that use the standard 34-pin V.35 interface. Pin functions for the high-speed port interface are listed in Table 2-9.

24 2-0 INSTALLATION Table 2-9 High-speed DTE Interface DB-25 EIA-530 RS-449 V pin A/B Common Name 25-pin A/B 37-pin A/B 34-pin A/B Frame Ground A 7 Signal Ground 7 9 B 2/4 Transmit Data 2/4 4/22 P/S 3/6 Receive Data 3/6 6/24 R/T 4/9 Request to Send 4/9 7/25 C 5/3 Clear to Send 5/3 9/ 27 D 6/22 Data Set Ready 6/22 /29 E 20/23 Data Term Ready 20/23 2/30 H 8/0 Data Carrier Detect 8/0 3/3 F 5/2 Transmit Clock 5/2 5/23 Y/AA 7/9 Receive Clock 7/9 8/26 V/X 24/ Terminal Timing 24/ 7/35 U/W NMS Connection The PRISM 300 is fully compatible with the TxPORT EM8000 Element Manager and 800A Site Controller. The EM8000 and 800A software systems are used to manage small to large networks of TxPORT network access products. An element may be accessed by using an RS-232 connection from the serial port of the computer running the EM8000 program to the element s SUPV port or the NMS IN and NMS OUT ports. The different connection methods are described in the following paragraphs. SUPV The EM8000 workstation or the 800A Site Controller may be directly connected to the 6-pin modular serial port connector labeled SUPV (also refer to Supervisory Port Connection on page 2-9). When a group of elements is connected in an NMS chain, the EM8000 or 800A may be connected to the supervisory port of any one of the elements. This element can then route messages onto the NMS chain to reach the other elements. The call on alarm (COA) feature works through the SUPV port only. NMS IN/OUT The two 6-pin modular connectors labeled NMS IN and NMS OUT on the rear panel may be used for connection to the EM8000 or 800A. This port is configured in this manner to allow the connection of multiple collocated units in a daisy chain IN/OUT bus arrangement as shown in Figure 2-7. The OUT port of one element is connected to the IN port of the next element, and so on, to form a complete chain among the group of elements.

25 NMS Connection 2- EM8000 or 800A NMS OUT IN/OUT Element # NMS IN OUT Element #2 NMS IN OUT Last Element NMS IN OUT Figure 2-7 NMS Daisy-Chain Arrangement All units on the same NMS chain must use the same NMS bit rate. NMS Split Cable NMS IN Only Chassis Operation The EM8000 may be connected directly into the NMS chain between two elements if connection to the SUPV port is not desirable. A Y-cable is used from the EM8000 serial port which splits the transmit and receive signals into two 6-pin modular connectors for the NMS IN and NMS OUT ports. Ordering information for this cable is found in Table -2 on page -8. The NMS IN connector provides both the transmit and receive signal pair. This port may be used for a modem connection or as a VT00 terminal interface (explained in the Terminal Operation chapter). EM8000 and 800A operation in the 2-slot chassis is similar to operation with the stand-alone unit with the exception that all elements are already chained together in the chassis. The front panel SUPV and the rear panel NMS ports operate in the same fashion. The NMS address, port bit rate, and power up configuration mode can be set only by the configuration switches. The physical connection is a 6-pin modular connector with the following pinout. This port is a serial RS-232 DCE port configured for 8 bits, no parity, and stop bit. Table 2-0 NMS Pinout Pin NMS Bus IN NMS Bus OUT Not Used Not Used 2 Signal Ground Signal Ground 3 Data Out Data Out 4 Data In Not Used 5 Signal Ground Signal Ground 6 Not Used Not Used

26 2-2 INSTALLATION T DTE Port Connection The 300 provides an optional T DTE port interface for drop and insert applications. The DSX-output level should be set as instructed in T DTE LBO on page 2-8. The DTE physical interface for both the stand-alone unit and the chassis mounted unit is a standard RJ-48C 8-pin modular jack with the pinout shown in Table 2-. Table 2- T DTE Pinout Pin T DTE Interface Data Out 2 Data Out 3 Not Used 4 Data In 5 Data In 6 Not Used 7, 8 Chassis Ground Network Connection The network side of the 300 is referred to as the network interface. This interface contains an ALBO to allow the unit to be located a substantial distance away from the telco network interface (receive level to -27 db). The network interface line build out levels should be adjusted as instructed in Network LBO on page 2-4. The maximum suggested cable lengths for unit connection to the network are listed below. Calculations are based on a cable temperature of 70 F, µF/mile capacitance, a 27-dB loss, and a 00-Ω, non-loaded, twisted pair cable. PIC refers to plastic insulated cable. Table 2-2 Network Line Build Out Cable Type Loss per 000' Max Cable Length 26 gauge PIC 6.8 db 3,900 ft 24 gauge PIC 5.4 db 5,000 ft 22 gauge PIC 4.2 db 6,400 ft 9 gauge PIC 3.0 db 9,000 ft The network physical interface for both the stand-alone unit and the chassis mounted unit is a standard RJ-48C 8-pin modular jack with the pinout shown in Table 2-3. Table 2-3 Network Pinout Pin Network Interface Data In 2 Data In 3 Not Used 4 Data Out 5 Data Out 6 Not Used 7, 8 Chassis Ground

27 /External Clock Connection 2-3 An alternate method of connecting the network is through the Network/External Clock contacts provided on the rear of the unit. Refer to /External Clock Connection below. Disconnection Notice: /External Clock Connection In accordance with FCC Rules, Part 68.28(b), the telephone company must be notified before disconnecting the CSU/DSU. Contacts are provided on the rear of the stand-alone unit to permit connection to an external timing source (using pins and 2). An alternate method for network connection is also provided with pins 3-6. Connection information is shown in Table 2-4. Table 2-4 /External Clock Pinout Pin External Clock Connection Network Input (Tip) 2 Network Input (Ring) 3 Network Output (Tip) 4 Network Output (Ring) 5 Station Clock (Ring) 6 Station Clock (Tip) The station clock input on the standard 300 unit is designed to accept TTL or bipolar signal levels. The station clock is commonly available as a 64 khz, bipolar RTZ signal referred to as a composite clock. The unit, however, also accepts any unframed all ones bipolar RTZ signal with a level of.5 to 4 volts peak and a frequency of.544 MHz or any multiple of 56 or 64 khz. An RS422/423- compatible station clock input, with the same range of input frequencies, is also available as a special option. Contacts are also provided on the rear of the 2-slot chassis unit to permit connection to an external timing source (using TB, pins and 2). The station timing is configured through the Terminal Interface. Refer to Line Parameters on page 4-5. Alarm Connection Stand-alone Unit The stand-alone unit and the chassis modular unit provide rear panel alarm relay contacts. These dry (isolated) alarm contacts permit connection to a remote indicating device. The connection for the stand-alone unit is made on pins 5 and 6 of the Alarm/Power connector as shown in Table 2-5. Table 2-5 Alarm/Power Connection Pin Function 48 VDC Return 2 Signal Ground 3-48 VDC 4 Frame Ground 5 Alarm Contact 6 Alarm Common

28 2-4 INSTALLATION Pin 5 is configured to operate in either a normally open (NO) or normally closed (NC) mode as determined by the setting of the alarm relay jumper shown below. This jumper is located on the circuit board as shown in Figure 2-8. Figure 2-8 Bottom-edge View of the PRISM 300 D/I Option NC NO Figure 2-9 Alarm Relay Jumper NO and NC refer to the contact s relationship to the common contact under a no alarms condition. Move the jumper to NC for normally closed operation (opens on alarm) or to NO for normally open operation (closes on alarm). Make connections to the contacts using 20-gauge stranded wire (or similar). Contacts are rated at 0.3 amperes AC or.0 amperes DC. Chassis Unit Alarm conditions from all modules in the chassis are bused together in parallel and are presented on a single set of alarm relay contacts which permit connection to a remote indicating device. When connected, Pins 3 and 4 on terminal strip TB operate in a normally open mode. Refer to the 05-2 Chassis Configuration Guide for more information. All PRISM 300 modules in a common chassis must use the normally open contact mode. Make connections to the alarm contacts using 20-gauge stranded wire (or similar). The contacts are rated at 20 ma AC or 20 ma DC. Power Connection Stand-alone Unit The stand-alone unit and the modular chassis unit require a -48 VDC power source that is capable of supplying 65 ma current. Power supplies are available from TxPORT and are listed in Table -2 on page -8. The power source is connected to pins and 3 of the Power and Alarm terminal as shown in Table 2-5.! Connect the ground lead before applying power to the unit. Connect a chassis ground lead (8- to 20-gauge is recommended) to the Frame Ground terminal (pin 4). Connect the other end of this lead to an appropriate facility ground. Often, the 48 VDC return is also ground. In that case, both return and ground leads should be connected to ground.