Table of Contents. Cableoptics Nodes Broadband Telecommunications Multi-Optic Node [BTN-M-75SH/*] FEATURES

Transcription

1 Table of Contents Cableoptics Nodes Broadband Telecommunications Multi-Optic Node [-75SH/*] FEATURES 52 to 750 MHz forward, 5 to 40 MHz return (Other splits available see specs) A/B switching for optical path, module redundancy Expanded bandwidth capability with 1 GHz platform Easy access fiber organizer simplifies optical cable management file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (1 of 13) [3/1/ :47:23 AM]

2 The Broadband Telecommuniations Multi-optic Node (model ), provides for transmissions in the forward band of 52 to 750 MHz and the return bandwidth of 5 to 40 MHz. The system has been designed to accommodate analog and digital stream transmissions in both signal paths, ensuring high performance and signal quality. To give you all the flexibility you need, the multi-optic node can be configured with up to two forward path optical receiver inputs, four high level RF outputs, and two return path optical transmitter outputs. ADVANTAGES - Bi-directional transmission capability for interactive services - Flexible Platform for plant architectures: Dual receivers and transmitters for redundancy or broadcast/narrowcast Various RF configurations Changeable 60 or 90 V powering Compatible with 1310 and/or 1550 nm optical wavelengths - Supports full complement of video and data return path transmitters - Field Installable optical plug-in modules for application flexibility Advanced Status Monitoring allows network management and control Digital Transmission system ready High performance Cableoptics technology System Application The gives you a cost-effective system upgrade, to gain additional revenues by offering broadband interactive video, data, telephony, personal communications, and multi-media services. The is a broadband telecommunications multi-optic node that performs the signal conversions, lightwave to RF, and RF to lightwave, in an optical transmission link in a wide variety of advanced hybrid fiber/coaxial network topologies. With the, you have a scaleable solution for the opto-electronic node deployment in broadband systems. It can be easily outfitted for two-way performance as the need arises. The optimizes your station space by allowing up to four optical modules: two optical receivers and two optical transmitters. This modular design gives you maximum flexibility to support changing needs, making it ideal for telephony and other advanced applications where redundancy capability and field upgradeability/ configurability are paramount concerns. Incorporating the latest advances in optical receiver and laser transmitter technology, the broadband file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (2 of 13) [3/1/ :47:23 AM]

3 telecommunications node provides for improved signal quality, extended transmission distances, increased system reliability and reduced system maintenance. Integrated within the optical node is power doubling RF amplification technology to 750 MHz. This allows for high level RF outputs, with high quality signal performance and minimal degradation, suitable for the transport of broadcast and narrowcast signals to multiple serving areas. Block Diagram (System Redundancy) Features: Forward Dual A/B Receivers Forward Dual Bandsplit Receivers Forward Single Receiver Forward Path The dual receiver functionality addresses split-band or redundancy applications and provides an automatic back-up system. A typical split-band configuration (see figure below) has analog signals in the 52 to 550 MHz band feeding one receiver, while digital transmissions, or narrowcast signals, are carried between 550 and 750 MHz on another fiber and processed by the second receiver. The redundant configuration allows for the input to the RF amplifier subsystem to be switched automatically from the primary receiver to the secondary receiver in the event that the primary unit loses optical signal input. file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (3 of 13) [3/1/ :47:23 AM]

4 Restoration of the primary path will result in an automatic switch to that path's optical receiver. Automatic path switch-over is accomplished through either the optional Status Monitoring or Redundancy Switch Driver modules. Receiver Module, AM-RM9/* The Broadband Telecommunications Node incorporates Motorola's proven optical receiver technology. It provides 750 MHz receive bandwidth, and is compatible with 1550 nm transmissions for super trunking or transport applications, as well as standard 1310 nm optical signals. The node's receiver and RF design facilitates various channel loading options, including full 110 analog channel loading. Optical to RF conversion is performed via a single fiber PIN diode photodetector and a hybrid preamplifier that is optimized for low noise and maximum carrier-to-noise. To assure reliability and performance, the receiver circuitry is designed into the die cast module for protection and effective thermal dissipation. RF Four independent RF outputs provide you with a wide variety of configurations and almost unlimited flexibility. You can have up to four high level bridger outputs, and a variety of bridger and trunk combinations. These flexible RF output port configurations address the market needs for high distribution levels, maximizing coaxial distribution from a single node, and reducing amplifier cascades, for moderate to high density systems. The high gain and output capabilities of the RF amplifier subsystem allows the node to be used in virtually all of the advanced fiber network topologies being used and designed today including Motorola's Broadband Telecommunications Architecture. file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (4 of 13) [3/1/ :47:23 AM]

5 Return Path FEATURES Return redundant transmitters Split return transmitters Return single transmitter As with the dual optical receivers, the dual return path optical transmitters have split-band or redundant functionality. In split-band applications, two of the four RF return signals are fed to one optical transmitter, while the remaining two return signals are fed to the second transmitter. This approach effectively doubles the available return bandwidth without the use of RF upconversion. When configured for redundancy (see figure below), both return lasers are active full-time, transmitting the combined RF return signals. In the event of path failure, return path redundancy is accomplished at the headend or receive site by switching to the alternate fiber. This functionality is extremely important in the evolving system designs for the transportation of telephony and other critical data streams. Return Path Transmitters, AM-MB-RPTDB/* and AM-TC-RPT/* Motorola offers a wide range of return path optical transmitters to meet present and future design criteria for data and video signal transmissions. Model AM-MB-RPTDB is a low-power laser diode transmitter capable of sending up to 10 data channels to the headend or hub. Data channels, such as those used in analog addressable return applications, are defined and specified as ± 150 khz FSK channels. file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (5 of 13) [3/1/ :47:24 AM]

6 The platform also offers you an optical transmitter which allows for the return transmission of advanced analog and digital services. Designed specifically to transport up to 2 NTSC video channel and two data channels back to the receive site, Model AM-TC-RPT/* utilizes a high performance Fabry- Perot laser designed for transmissions in the 5 to 40 MHz frequency range. The model AM-TC-RPT/* series of data and video optical transmitters offers several advanced features: Expanded channel loading capability, 35 MHz of digital data, such as return data from a RF Modem; a high optical output level, 0.4 mw; and a Thermal Slope Efficiency Compensator circuit which provides stable laser output power over temperature. Network Monitoring The LIFELINE TM status monitoring transponder applies the latest technological advances to network management applications. This module provides for optical link, receiver, transmitter, and RF electronics performance measurement, control, and alarm generation, and is an effective tool to improve system reliability, and reduce plant maintenance time. The status monitoring circuitry monitors the following parameters in the node: optical power, laser bias current, receiver current, AC and DC voltages, temperature, lid tamper switch, forward and reverse RF current, RF level and auto drive voltage. Accessories To ensure system flexibility, ease of installation and maintenance, enhanced user-friendly accessories are offered with the for full featured functionality. Designed to meet all of your system design criteria and requirements, the products are designed to use existing, compatible BTN node accessories such as standard attenuators, ADU, and the return amplifier kit. The ADU Automatic Drive unit, allows for automatic gain and slope controls of the RF amplifier, compensating for changes in signal level. A 50-foot, six-fiber, connectorized (SC/APC or FC/APC) fiber service cable can be provided to ensure a consistent, standardized, flawless connection with minimal attenuation for superior signal quality. The opto-electronic node platform, shipped as configured, can consist of the housing, RF electronics, power supply, optical receivers, optical transmitters, forward and return, status monitoring module, splice tray and service cable. Over 100 variations are available with configurations designed to address numerous system requirements such as bi-directional transmissions, varying RF output configurations, network monitoring, thermal control, automatic level control, RF return, surge protection and housing finish. Please refer to the configuration ordering chart for specific information. Specifications file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (6 of 13) [3/1/ :47:24 AM]

7 Cableoptics Nodes Broadband Telecommunications Multi-Optic Node[-75SH/*] To download the BTN configurator, please click the icon below. This file requires Adobe Acrobat Reader. To download Adobe Acrobat Reader, please click here. For more information on Adobe Acrobat Reader, please refer to the Adobe web site. -75/* Specifications: Notes Passband MHz 1 SH 5-40 MHz JH MHz Main Amplifier full gain 36 db Minimum 2 Receiver module gain 23 db Minimum Optical Input Return Loss 45 db Optical Wavelength nm Equivalent Input Noise Current 8pA/sqrt Hz Received Optical Power -7 dbm Maximum 3 0 dbm Maximum Optical Test Point 2 Vdc/mW, +/- 10% Flatness over passband +/- 1 db, all ports 4 Rolloff Not in excess of -0.5 db from 750 to 775 MHz referenced to operational slope Operational Tilt 10 db, +/- 1 db, Linear (Standard) 14 db, +/- 1 db, Linear (Optional) 5 Output Level, 4 ports SH JH 77 analog NTSC, 200 MHz compressed 750/547.25/55.25 MHz 74 analog NTSC, 200 MHz compressed 750/547.25/70 MHz 37/44/37 dbmv 6 37/44/37 dbmv 6 file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (7 of 13) [3/1/ :47:24 AM]

8 Distortion (Link & RF) SH JH 77 analog NTSC, 33 digital 750/547.25/52 MHz 74 analog NTSC, 33 digital 750/547.25/70 MHz 37/44/37 dbmv 37/47/37 dbmv RM9 Receiver Typical Performance BTD Launch Amp Station Performance C/N (dbc) CTB (dbc) ,8 CSO (dbc) ,9 CIN (dbc) RF Output Return Loss 14 db 11 DC Current Draw (includes optical receiver) Operating Temperature -40 To +60 C (-40 to +140 F) AC Input Voltage Vac Sine or Square 2.5A 12 AC Bypass Current 10A 13 Port 2 12A 13 HUM Modulation -70 Bypass Current POWERING REQUIREMENTS @38V -75*/* 73.8W.86A 1.29A 1.54A 1.82A 2.04A Add for second receiver and switch 9.0W.11A.16A.19A.22A.25A driver Add for second receiver and status 11.1W.13A.20A.23A.27A.31A monitor Add for return laser 8.2W.10A.15A.17A.20A.23A Add for redundant return laser 12.2W.14A.22A.26A.31A.34A Add for split return laser 16.2W.19A.29A.34A.41A.45A Add for status monitor 3.0W.04A.06A.07A.08A.09A Add for ADU 2.1W.03A.04A.04A.05A.06A NOTES: 1. Operating passband of station, diplex filters are hard-wired into the electronic chassis. 2. Minimum full gain at 750 MHz, gain reserves have not been set. 3. Specified at 1310 nm. Test point calibration for 1550 nm is 10% lower (example 2 Vdc = Peak to valley measurement for stated passband. Highest to lowest point on response curve. file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (8 of 13) [3/1/ :47:24 AM]

9 5. Amount of linear tilt created via plug-in board. 6. Frequencies that relate the picture carriers or passband edges to the specified output levels add tilts. 7. Measured using OmniStar laser module Omni-LM-9 and 9 db link. 8. Measured with CW carriers and spectrum analyzer. Specifications are compliant with the test methods as stated in ( NCTA RECOMMENDED PRACTICES FOR MEASUREMENTS ON CABLE TELEVISION SYSTEMS). C/N, CTB and CSO station performance specifications are based on typical performance, worst case C/N, CTB, and CSO is -51, respectively. 9. Composite Second Order distortion refers only to those beat clusters that fall +.75 MHz and MHz above the subject picture carrier. CSO beat clusters that have a -.75 MHz and 1.25 MHz relationship to the subject picture carrier are not included in this specification. 10. CIN (Carrier to Intermodulation Noise). Contributions of data compression to noise floor. Performance varies on a two for one basis with amplifier output level and should be calculated in a cascade using a 20 log function, but CIN should be added to the high channel C/N calculation on a 10 log basis. 11. Match measurement at the station output, cable-entry facilities, at the specified passbands. 12. Current draw at Vdc. 13. AC current is stated in RMS continuous. BTN -M-75*/* OPTIONS AND ACCESSORIES The basic version of the, Model -75SH/DNR-NNT-GNX, comes equipped with an optical receiver module, Module AM-RM9/*, and a node specific BTD-75* RF amplifier module. As indicated in the preceding catalog page, the node can be upgraded at a later date with field installable options. Available options support optical redundancy or split-band operation in forward receive and return transmit applications. The following options provide this enhanced functionality. PRODUCT MODEL DESCRIPTION Forward Receiver Options AM-RM9/* AM-FBS Additional optical receiver module. Forward Band Split - In this splitband configuration, two independent fibers, feed independent receivers in the node, utilizing separate portions of the forward path RF spectrum. The FBS option board combines these two signals for common RF amplification/ transport. file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (9 of 13) [3/1/ :47:24 AM]

10 Return Path Transmitter Options AM-FAB-MB Forward A/B switch - The node is configured with dual receivers for redundancy. The FAB mother board incorporates an RF switch to change the signal flow to the RF amplifier from the primary receiver to secondary receiver if the primary loses optical signal. Requires use of status monitoring or the AM- RSD. AM-RSD Redundancy Switch Driver - Facilitates automatic or manual switching between dual receivers if status monitoring option not installed. AM-MB-RPTDB/* Optical return path transmitter designed to transport data channels only. AM-TC-RPT/* Optical Transmitter transports 35 MHz Digital Data or up to 2 Video Channels. AM-RRDP-KIT Return Redundancy - The node is configured with dual return lasers both actively transmitting on independent fibers, providing optical path redundancy to the headend. The RRD board equally splits the common RF return signals to the dual transmitters The kit includes an RRDP board and a return coaxial cable. file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (10 of 13) [3/1/ :47:24 AM]

11 AM-RSP-KIT AM-RST-KIT Return Split - This dual transmitter option is a split configuration in which two of the four node output port returns are fed to one transmitter, and the other two to a second transmitter. The RSP kit includes the RSP split plug-in board, a second RA-KIT/40 return hybrid, and the RTN-2X combiner. Return Single - For single return path transmitter configurations. Includes jumper board, return hybrid, and interconnect cable. Station Upgrades -UPG-KIT This kit facilitates the upgrade of your existing BTD amplifier or BTN-S single-optic node to the multi-optic node. -75*/* OPTIONS AND ACCESSORIES Station Upgrades Optic Upgrades Model Number Description BTN-S to Upgrade BTD to Upgrade Single Return Forward Redundancy Return Redundancy Forward Split-Band Return Split-Band LID KIT UPG Kit - A/B-SC Kit includes lid housing, A/B switch motherboard & interconnect cabling 1 1 Forward Receive Comments: Various kits are available to accommodate SC/APC or FC/APC connectorization and/or chromate housing AM-RM9/ * New integrated receiver AM-FAB Comments: Successor to RM-9 Forward A/B switching motherboard 1 file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (11 of 13) [3/1/ :47:24 AM]

12 AM-FBS AM-RSD Forward band-split plug-in board Redundancy switch driver board 1 1 Return Transmitter Comments: Need RSD to control A/B switch if node not equipped with status monitoring AM-MB- Data Transmitter RPTDB/* or or or or AM-TC- RPT/* New Optical Transmitter AM- RRDP Kit AM-RSP Kit AM-RST Kit Kit includes redundant return board and return coaxial cable Kit includes return band split board and RTN-2X combiner Includes jumper board, return hybrid & BTN-1R40 cable RF Accessories (required only for BTD to conversion) BTN-S-1F Forward interconnect cable 1 BTN-S- TCU Thermal compensation unit 1 MDR-7 BTN/11.4 Flatness Board Comments: Replaces TDU not needed if ADU Linear response board 1 Response correction board 1 Hybrid 17 db interstage amplifier 1 Comments: Replaces 22 db interstage in BTD Varilosser Node AGC board 1 Comments: Replaces Bode in in BTD *designates SC/APC or FC/APC connectorization. NOTES: file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (12 of 13) [3/1/ :47:24 AM]

13 1. These upgrades are intended for field upgrades to existing configured BTD, BTN-S, and units in use and are not to be used when ordering a new configured. 2. This matrix assumes BTN-S and units are configured with 1 RM9 receiver and no return. 3. Station level upgrades provide for minimum node operation, single receive only. Specifications subject to change without notice. For more information: call file:////ncs-server-xp/temp/motorola CD 2001/frames.htm (13 of 13) [3/1/ :47:24 AM]