APPLICATION NOTE. Leased Line Modem. Leased Line Modem...3. Introduction Key Concepts... 4

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1 Issue Date 02/18/02 APPLICATION NOTE Leased Line Modem Leased Line Modem...3 troduction... 3 Key Concepts... 4 Application Details...4 Theory of Operation...6 Components...8 Planning Considerations...10 Design Considerations...10 Detailed Procedures Configuring the Modems...12 Configuring the MultiModemV32L Unit...12 Configuring the MultiModemII (MT1432A) Unit...22 Configuring the MultiModemII (MT1932 and MT2834) Unit...32 Using Commissioning Procedures...39 stalling the Modems...40 Using the Remote Printer Application...46 Using the Remote N2 Bus Application...48 Troubleshooting Procedures Checking for a Defective Modem...55 Checking Revision Level...56 Modem Does Not Configure Properly...56 Reference Modem Commands...57 Modem Switch Settings Johnson Controls, c. Code No. LIT Software Release 12.00

2 2 Leased Line Modem Application Note Ordering formation Johnson Controls Code Numbers...58 Vendor Code Numbers...58 Ordering a Leased Line...59

3 Leased Line Modem Application Note 3 Leased Line Modem troduction The Leased Line Modem applications allow the Metasys Network Control Module (NCM) to communicate with remote Operator Workstations (OWSs), printers, and N2 Bus devices over a pair of leased line modems. These applications provide fast communication over leased lines without the dialing and handshaking delays that are characteristic of dial-up communication. You can link a remote OWS located in a different building, send alarms to remote printers, and extend the N2 Bus to remote locations.

4 4 Leased Line Modem Application Note Key Concepts Application Details Remote Operator Workstation - allows you to have an OWS in any remote location via the NCM s RS-232 serial port or RS-232 submodule port (Figure 1). Remote Printer - allows you to have a printer in any remote location via the NCM s RS-232 serial port or RS-232 submodule port (Figure 2). Remote N2 Bus - allows you to extend the physical N2 Bus over leased lines to connect N2 devices (Figure 3 and Figure 4). Figure 1 shows the Remote Operator Workstation application, in which a pair of modems enable communication between the NCM and an OWS over leased lines. The RS-232 connection at the NCM can be at the RS-232 serial port or the RS-232 submodule port. 2-Slot NCU Either NCM s RS-232 Serial Port or RS-232 Modem Submodule Port NCM Leased Lines Modem RS-232 Operator Workstation Note: For NCM300, modem connects to NCM's Port 2 (RS-232 port). For NCM350, modem can connect to Port 6 (with additional serial card). For details on available ports based on your configuration, see the Network Control Module 300 Series Technical Bulletin (LIT ). Figure 1: Remote Operator Workstation Application OWSAPP

5 F R. G N D R D ( A ) T D ( B ) G N D RS- 232 RS- 232 TO RS- 485 COM ERTER (485TBLED R S-232 E c ho O f On Co nt ro l RTS SD Leased Line Modem Application Note 5 Figure 2 shows the Remote Printer application, in which a pair of modems enable communication between the NCM and a printer over leased lines. The RS-232 connection at the NCM can be at the RS-232 serial port or the RS-232 submodule port. Either NCM's RS-232 Serial Port RS-232 NCM or RS-232 Modem Submodule Port Leased Lines Modem Printer 2-Slot NCU Note: For NCM300, modem connects to NCM's Port 2 (RS-232 port). PRNTAPP TBC Figure 2: Remote Printer Application Figure 3and Figure 4 show two variations of the Remote N2 Bus application. The application in Figure 3 shows one RS-232-to-N2 Bus converter changing the N2 Bus signal to RS-232 levels, a pair of modems transmitting the signal over leased lines, and another converter changing the Bus signal back to RS-485 levels. As shown, two sides of the N2 Bus may be wired at the converter on the Network Control Unit (NCU) side. Also note that you can use this application with the NCM101/102, NCM401, NCM200, or NCM300. N2 Bus V D C E c h o C o nt ro l O f f R T S O n S D S h ie ld T D ( A ) T D ( B ) R S-232 TOR S-485 CO MERTE R ( 485TBLED Converter Model 485TBLED RS-232 To Local N2 Bus Devices or Other Converters/Modems Modem NCM N2 Bus Submodule Leased Lines (Required for NCM101/102/401) Modem RS-232 Converter Model 485TBLED FR. G ND S h ie ld TD(A) TD(B) RD(A) TD(B) GND +12VDC To Remote N2 Bus Devices 2-Slot NCU Note: For NCM300, N2 connection is made at its N2 terminal block, not at the Communications Terminal Board (TBC). N2APP Figure 3: Remote N2 Bus Application via N2 Bus Submodule or Converter

6 Ec ho O f On Co nt ro l RTS SD 6 Leased Line Modem Application Note Figure 4 shows an application in which the RS-232 submodule installed in the NCM connects to a remote N2 Bus. A similar application can be used to extend the N2 Bus in the NCM300. The NCM200 cannot extend the N2 Bus in this way. Also, the following restrictions apply: The N2 Bus cannot be wired at the Communication Terminal Board (TBC) on the NCU (only at the RS-232 submodule). The NCU cannot contain any other modules (e.g., DCMs and XBNs) except the NCM. NCM* Modem RS-232 Submodule Leased Lines RS- 232 RS-232 Modem RS-232 RS-232 TORS-485 COMER TER ( 485TBLED Converter Model 485TBLED FR. G ND S h ie ld TD(A) TD(B) RD(A) TD(B) GND +12VDC To Remote N2 Bus Devices 2-Slot NCU * NCM101/102/401 or NCM300 only. Figure 4: Remote N2 Bus Application via RS-232 N2APP2 Theory of Operation The Leased Line Modem applications are fully compatible with and transparent to Metasys functions and features. The applications apply only to the NCM s RS-232 serial port, NCM submodule ports, and N2 Bus; they cannot be applied to the N1 Local Area Network (LAN). Two leased line modems were tested for these applications, both made by Multi-Tech Systems, c.: the MultiModem V32L and the MultiModemII modems. Both modems are functionally the same, but the smaller MultiModemII unit replaces the discontinued MultiModemV32L unit. Both modems are compatible with Hayes products and feature error correction, data compression, and speed conversion. They provide the following functions: use leased line or dedicated wire. Dedicated wire is telephone wire that is hard wired exclusively for the modems. communicate at various data rates up to 9600 bits per second (bps) for the MultiModemV32L unit and up to 28.8 kilobits per second (Kbps) for the MultiModemII unit depending on the NCM configuration.

7 Leased Line Modem Application Note 7 provide dialback protection over standard telephone lines, which automatically calls the dialback line when the leased line goes down, then re-establishes communication over the leased line from the dialback line when the modem detects that the leased line is reconnected. The dialback feature is optional and is used only when you specify both a dialback number and connect a telephone line to the Dial Line connector. support 2- or 4-wire connections support dedicated wire distances up to 1 mile at 9600 baud and 1/4-mile at 14,400 baud (longer for lower baud rates) support leased line wire distances up to the maximum that your local telephone company provides use communication format V.32, a worldwide standard This document uses the terms originate modem and answer modem. The originate modem initiates all telephone calls over the dialback line. The answer modem answers all telephone calls placed to it by the originate modem.

8 8 Leased Line Modem Application Note Components Table 1: Components of the Leased Line Modem Application Component N2 Bus Submodule RS-232 Submodule Leased Line Modem RS-232-to-N2 Bus Converter RS-232 Cables Leased Line Description Supplies RS-485 signals to the N2 Bus. The NCM101/102/401 requires this submodule, while the NCM200 and NCM300 integrate the N2 interface. Provides a second RS-232 connection to the NCM. The NCM101/102/401/200 require this submodule, while the NCM300 does not. Allows Metasys components to communicate over a leased line or standard telephone line. The leased line modems that were tested are the MultiModemV32L unit and the MultiModemII unit from Multi-Tech Systems, c. Both modems include telephone wire that can be used between the modem and the phone wall jack. For more details on these modems, refer to their respective owner s manuals*. Converts RS-232 signals to N2 Bus signals, and vice versa. Required because the N2 Bus uses RS-485 and the modems use RS-232. The converter uses a separate plug-in Class 2 transformer. Serve as the communication medium between Metasys devices and the modems. Various cable configurations are needed depending on the device. Serves as the data line you rent from the local telephone company over which the modems communicate. Its general specifications are listed in the section Ordering a Leased Line. Telephone Wire Serves as the communication medium between the modem and the telephone wall jacks, and between two modems if you are using dedicated wire. Use standard telephone wire, 24 AWG, either 2- or 4-wire. Take special note of whether you use 2- or 4-wire, since one switch setting on the modem varies accordingly. *Note: The MultiModemV32L unit and MultiModemII unit are loop-start compatible modems. They will not function on ground-start PBX systems.

9 Leased Line Modem Application Note 9 Table 2 can help decide which components are required for your application. Table 2: Components Required Leased Line Application OWS or Printer (See Figure 2.) N2 Bus (See Figure 3.) N2 Bus with RS-232 NCM101/102/300* (See Figure 4.) Components Required (2) Leased Line Modems (2) RS-232 Cables (1) RS-232 Submodule (not required if NCM s RS-232 serial port is used) Leased Line Telephone Wire (2) Leased Line Modems (2) RS-232 Cables (2) RS-232-to-N2 Bus Converters Power supply for each N2 Bus Converter (1) N2 Bus Submodule (NCM101/102/401)* Leased Line Telephone Wire (2) Leased Line Modems (2) RS-232 Cables (1) RS-232-to-N2 Bus Converter Power supply for each N2 Bus Converter (1) RS-232 Submodule** Leased Line Telephone Wire * For information on NCM300, see the Network Control Module 300 Series Technical Bulletin (LIT ). ** Not required for NCM300.

10 10 Leased Line Modem Application Note Planning Considerations Planning considerations for the Leased Line Modem application include space, environment, and power. The space requirements are included in Table 3. Table 3: Space Requirements Component MultiModemV32L Unit (W x H x D) Transformer for MultiModemV32L Unit (W x H x D) MultiModemII Unit (W x H x D) Transformer for MultiModemII Unit (W x H x D) RS-232-to-N2 Bus Converter (W x H x D) Power Supply for RS-232-to-N2 Bus Converter (W x H x D) Dimensions 185 x 41 x 279 mm (7.28. x 1.61 x in.) 64 x 102 x 70 mm (2.52 x 4.02 x 2.76 in.) 156 x 35 x 229 mm (6.14 x 1.38 x 9.02 in.) 57 x 64 x 64 mm (2.24 x 2.52 x 2.52 in.) 55 x 19 x 86 mm (2.17 x 0.75 x 3.39 in.) 41 x 54 x 38 mm (1.61 x 2.13 x 1.50 in.) Design Considerations Environment The operating environment for the Leased Line Modem application components must maintain temperatures within the range of 0 to 50 C (32 to 122 F) while maintaining relative humidity at a value of 10 to 90% (non-condensing). Power The MultiModemV32L unit and the MultiModemII unit require an external power source of 115 VAC at 0.3 A (60 Hz) or 240 VAC at 0.15 A (50 Hz). Connect the modem to a circuit that is free from heavy equipment and large induction motors. The RS-232-to-N2 Bus Converter is powered with a transformer that plugs into a 120 VAC wall outlet. Design considerations for the Leased Line Modem application include cable distances, leased line modem, and public carrier leased line capability. The allowable distances for the dedicated wire are listed in Table 4. There is no distance limitation when using public carrier leased lines.

11 Leased Line Modem Application Note 11 Table 4: Cable Distances Modem Baud Rate Allowable Distance* MultiModemV32L Unit km (1 mile) MultiModemII Unit km to 4.8 km (1 to 3 miles) 14, km (1/4-mile) * Longer distances are possible with lower baud rates and if the wire is not routed near noisy sources, such as fluorescent lights and power lines. Leased Line Modem The MultiModemV32L unit successfully passed application tests with Metasys Releases 2.02, 3.x, and 4.0. The MultiModemII (MT1432) unit successfully passed application tests with Metasys Release 4.0. The MultiModemII (MT2834) unit successfully passed application tests with Metasys Release 7.0. Other leased line modems may also work with these applications. Refer any quality or operation problems of the modem to the manufacturer. IMPORTANT: None of these modems was qualified per Johnson Controls environmental or noise quality standards, and are not guaranteed to work in other applications. Public Carrier Leased Line Compatibility The modems can be connected to 2-wire or 4-wire unconditioned private lines. The 4-wire application is more common. Refer to the Ordering a Leased Line section for general specifications.

12 12 Leased Line Modem Application Note Detailed Procedures Configuring the Modems To configure the MultiModemV32L unit or the MultiModemII unit, you need a dumb terminal, or a terminal program such as Windows Terminal program or ProComm Plus program running on the OWS. Connect a straight-through cable between the modem and the terminal while configuring. Leave the modem s jumper settings (inside) to the factory default positions. Configuring the MultiModemV32L Unit Configuring the MultiModemV32L unit depends on which application you are using: remote OWS, remote printer, or remote N2 Bus. Using the Remote Operator Workstation Application To configure the MultiModemV32L unit: 1. Set the terminal to the following to enable it to configure the modems: 9600 baud, 0 or no parity, 8 data bits, 1 stop bit, half duplex 2. Set the modem s switches (located on the bottom) to the following to enable it for configuration, using Table 5 and Table 6: Table 5: 4-Position Switch Block 4-Position Switch Block Position 1 Down 2 Down 3 Down 4 Down

13 Leased Line Modem Application Note 13 Table 6: 8-Position Switch Block 8-Position Switch Block Position 1 Up 2 Up (2-wire) or Down (4-wire) 3 Up 4 Down 5 Up 6 Up 7 Up 8 Down 3. Disconnect the leased line from the back of the modem, after setting the modem s switches to enable it for programming. 4. Set the modems to 9600 baud, type the following commands, pressing Enter after each: AT&W1&F ATY1Q1 AT&E1S18=255 AT&BSE0&W0 If you want to set the modems to some other acceptable baud rate (300, 600, 1200, 2400, or 4800), type the following commands, specifying the baud rate in place of xxxx. Press Enter after each command. AT&W1&F ATY1Q1 AT&E1S18=255 AT$BA0$SBxxxx AT&BS0E0&W0 If the modem is not communicating properly, drop the baud rate to 2400 by typing the following commands at the terminal and pressing Enter after each: AT&W1&F ATY1Q1 AT&E1S18=255 AT$BA0$SB2400 AT$MB2400 AT&BS0E0&W0

14 14 Leased Line Modem Application Note 5. Cycle power on the modem. Type the following command and press Enter: ATL5 A list of parameters displays. Verify the following parameters are in the list: E0, Q1, &E1, $MBxxxx, $SByyyy, $BAz, &W0 where: xxxx and yyyy = baud rate selected z = 1 for 9600 baud; 0 for any other baud rate If any of these parameters are incorrect, check the switch settings, reenter the command in Step 4, and verify. 6. Type the following command and press Enter: ATL7 Another parameter list displays. Verify that this list contains the following parameters: &BS0, Y1, $MBxxxx, $SByyyy, $BAz, &W0 where: xxxx and yyyy and z = see Step 5 Again, if any of these parameters is incorrect, check the switch settings, reenter the command in Step 4, and verify. After verifying that the modem is properly programmed, reconnect the leased line to the modem. 7. Type the following command and press Enter: ATS18? The response to this command should be 255. If not, reenter the command in Step 4 and verify.

15 Leased Line Modem Application Note (Optional)Specify the dialback number at the OWS s modem (i.e., the originate modem) by typing the following command and pressing Enter, if you want to use the dialback feature: For touchtone: ATDT<phone number>n9 For pulse: ATDP<phone number>n9 Examples: ATDT N9 (sets as dialback number; uses tone dial; stores number in Location 9) ATDP9, N9 (opens outside line; sets as dialback number; uses tone dial; stores number in Location 9) The 9, command in the second example opens an outside line (9) and pauses the modem for 2 seconds before it resumes dialing (,). 9. Type the following command and press Enter: ATL The phone number you entered should be listed under Register 9 (N9). If the number is incorrect, reenter the command in Step 8 and verify. 10. Change the switches to operational settings as follows to make the OWS modem the originate modem and the NCM (or JC/85 Gateway NCM) modem the answer modem, after configuring the MultiModemV32L unit. Use Table 7 or Table 8 to determine switch settings. Table 7: 4-Position Switch Block for Originate/Answer Modems Originate Modem (OWS Side; 4-Position Switch Block) Answer Modem (NCM Side) Switch Position Switch Position 1 Down 1 Down 2 Down 2 Down 3 Down 3 Down 4 Down 4 Down

16 16 Leased Line Modem Application Note Table 8: 8-Position Switch Block for Originate/Answer Modems Originate Modem (OWS Side; 8-Position Switch Block) Answer Modem (NCM Side) Switch Position Switch Position 1 Up 1 Up 2 Up (2-wire) or Down (4-wire) 2 Up (2-wire) or Down (4-wire) 3 Up 3 Up 4 Down 4 Down 5 Down 5 Up 6 Up 6 Up 7 Up 7 Up 8 Up 8 Up The next step is to prepare the modem cables. Refer to stalling the Modems, Using the Remote Operator Workstation Application section. Using the Remote Printer Application To configure the MultiModemV32L unit: 1. Set the terminal to the following to enable it to configure the modems: 9600 baud, 0 or no parity, 8 data bits, 1 stop bit, half duplex 2. Set the modem s switches (located on the bottom) to the settings listed in Table 9 or Table 10 to enable it for configuration: Table 9: MultiModemV32L Unit 4-Position Switch Block 4-Position Switch Block Position 1 Down 2 Down 3 Down 4 Down

17 Leased Line Modem Application Note 17 Table 10: MultiModemV32L Unit 8 Position Switch Block 8-Position Switch Block Position 1 Up 2 Up (2-wire) or Down (4-wire) 3 Up 4 Down 5 Up 6 Up 7 Up 8 Down 3. Disconnect the leased line from the back of the modem, after setting the modem s switches to enable it for programming. 4. Set the modems to 9600 baud, type the following commands, pressing Enter after each: AT&W1&F AT&E5&E6Q1 AT&E1 ATS18=255E0&W0 If you want to set the modems to some other acceptable baud rate (1200, 2400, or 4800), type the following commands, specifying the baud rate in place of xxxx. Press Enter after each. AT&W1&F AT$BA0$SBxxxx AT$MBxxxx&E5 AT&E6Q1 AT&E1S18=255E0&W0 These commands set certain defaults, enable error checking, and set Xon/Xoff. If the modem is not communicating properly, use a baud rate lower than Cycle power on the modem. Type the following command and press Enter: ATL5 A list of parameters displays. Verify the following parameters are in the list: E0, Q1, &E1, &E5, &E6, $MBxxxx, $SByyyy, $BAz, &W0 where: xxxx and yyyy = baud rate selected z = 1 for 9600 baud; 0 for any other baud rate

18 18 Leased Line Modem Application Note If any of these parameters are incorrect, check the switch settings, reenter the command in Step 4, and verify. 6. Type the following command and press Enter: ATS18? The response to this command should be 255. If not, reenter the command in Step 4 and verify. After verifying that the modem is properly programmed, reconnect the leased line to the modem. 7. (Optional)Specify the dialback number at the printer s modem (i.e., the originate modem) by typing the following command and pressing Enter, if you want to use the dialback feature: For touchtone: ATDT<phone number>n9 For pulse: ATDP<phone number>n9 Examples: ATDT9, N9 (opens outside line; sets as dialback number; uses tone dial; stores number in Location 9) ATDP N9 (sets as dialback number; uses pulse dial; stores number in Location 9) The 9, command in the first example opens an outside line (9) and pauses the modem for 2 seconds before it resumes dialing (,). 8. Type the following command and press Enter: ATL The phone number you entered should be listed under Register 9 (N9). If the number is incorrect, reenter the command in Step 7 and verify. 9. Change the switches to operational settings as shown in Table 11 or Table 12 to make the printer modem the originate modem and the NCM modem the answer modem, after configuring the MultiModemV32L unit. Table 11: MultiModemV32L Unit 4-Position Operational Settings Originate Modem (Printer Side; 4-Position Switch Block) Answer Modem (NCM Side) Switch Position Switch Position 1 Down 1 Down 2 Down 2 Down 3 Down 3 Down 4 Down 4 Down

19 Leased Line Modem Application Note 19 Table 12: MultiModemV32L Unit 8-Position Operational Settings Originate Modem (Printer Side; 8-Position Switch Block) Answer Modem (NCM Side) Switch Position Switch Position 1 Up 1 Up 2 Up (2-wire) or Down (4-wire) 2 Up (2-wire) or Down (4-wire) 3 Up 3 Up 4 Down 4 Down 5 Down 5 Up 6 Up 6 Up 7 Up 7 Up 8 Up 8 Up The next step is to prepare the modem cables. Refer to Using the Remote Printer Application section. Using the Remote N2 Bus Application To configure the MultiModemV32L unit: 1. Set the terminal to the following to enable it to configure the modems: 9600 baud, 0 or no parity, 8 data bits, 1 stop bit, half duplex 2. Set the modem s switches (located on the bottom) to the following to enable it for configuration (Refer to Table 13 and Table 14): Table 13: MultiModemV32L Unit 4-Position Configuration Settings 4-Position Switch Block Position 1 Up 2 Down 3 Up 4 Down

20 20 Leased Line Modem Application Note Table 14: MultiModemV32L Unit 8-Position Configuration Settings 8-Position Switch Block Position 1 Down 2 Up (2-wire) or Down (4-wire) 3 Up 4 Down 5 Up 6 Down 7 Down 8 Down 3. Disconnect the leased line from the back of the modem, after setting the modem s switches to enable it for programming. 4. Type the following commands at the terminal for each modem, pressing Enter after each: AT&W1&F ATY1Q1 AT&E0S18=255 AT$SB9600 AT$BA0E0&W0 These commands disable error correction and set certain modem defaults, such as 9600 baud. 5. Cycle power on the modem. Type the following command and press Enter: ATL5 A list of parameters displays. Verify the following parameters are in the list: E0, Q1, &E0, $MB9600, $SB9600, $BA0, &W0 If any of these parameters are incorrect, check the switch settings, reenter the command in Step 4, and verify. 6. Type the following command and press Enter: ATL7 Another parameter list displays. Verify that this list contains the following parameters: Y1, $MB9600, $SB9600, $BA0, &W0 If any of these parameters is incorrect, check the switch settings, reenter the command in Step 4, and verify. After verifying that the modem is properly programmed, reconnect the leased line to the modem.

21 Leased Line Modem Application Note Type the following command and press Enter: ATS18? The response to this command should be 255. If not, reenter the command in Step 4 and verify. 8. (Optional)Specify the dialback number at the NCM s modem (i.e., the originate modem) by typing the following command and pressing Enter, if you want to use the dialback feature: For touchtone: ATDT<phone number>n9 For pulse: ATDP<phone number>n9 Examples: ATDT9, N9 (opens outside line; sets as dialback number; uses tone dial; stores number in Location 9) ATDP N9 (sets as dialback number; uses pulse dial; stores number in Location 9) The 9, command in the first example opens an outside line (9) and pauses the modem for 2 seconds before it resumes dialing (,). 9. Type the following command and press Enter: ATL The phone number you entered should be listed under Register 9 (N9). If the number is incorrect, reenter the command in Step 8 and verify. 10. Change the MultiModem V32L switches to operational settings to those listed in Table 15 or Table 16 to make the NCM modem the originate modem and the N2 device modem the answer modem, after configuring the MultiModemV32L unit. Table 15: MultiModemV32L Unit 4-Position Switch Block Settings Originate Modem (NCM; 4-Position Switch Block) Answer Modem (N2 Device Side) Switch Position Switch Position 1 Up 1 Up 2 Down 2 Down 3 Up 3 Up 4 Down 4 Down

22 22 Leased Line Modem Application Note Table 16: MultiModemV32L Unit 8-Position Switch Block Settings Originate Modem (NCM Side; 8-Position Switch Block) Answer Modem (N2 Device Side) Switch Position Switch Position 1 Down 1 Down 2 Up (2-wire) or Down (4-wire) 2 Up (2-wire) or Down (4-wire) 3 Up 3 Up 4 Down 4 Down 5 Down 5 Up 6 Down 6 Down 7 Down 7 Down 8 Up 8 Up The next step is to prepare the modem cables. Refer to stalling the Modems, Using the Remote N2 Bus Application section. Configuring the MultiModemII (MT1432A) Unit Configuring the MultiModemII (MT1432) unit depends on which application you are using: remote OWS, remote printer, or remote N2 Bus. Note: If you are configuring the MultiModemII (MT1932 or MT2834) unit, refer to the section, Configuring the MultiModemII (MT1932 and MT2834) Unit. Using the Remote Operator Workstation Application To configure the MultiModemII (MT1432) unit: 1. Set the terminal to the following to enable it to configure the modems: 9600 baud, 0 or no parity, 8 data bits, 1 stop bit, half duplex 2. Set the modem s switches (located on the side) to the following to enable it for configuration:

23 Leased Line Modem Application Note 23 Table 17: MultiModemII MT1432 Unit Switch Settings Switch Position 1 Up 2 Up 3 Down 4 Up 5 Up 6 Up 7 Up 8 Down 9 Down 10 Up 11 Up 12 Down 13 Up 14 Up 15 Up 16 Up (2-wire) or Down (4-wire) 3. Disconnect the leased line from the back of the modem, after setting the modem s switches to enable it for programming. 4. Set the modem s serial port to 9600 bps and the modem s leased line to 14.4 Kbps, type the following commands, pressing Enter after each: AT&W1&F AT$SB9600S18=255 AT&E1&BS0 ATY1Q1E0&W0 If you want to set the modem s serial port to some other acceptable baud rate (300, 600, 1200, 2400, etc.), type the following command, specifying the baud rate in place of xxxx. Press Enter. AT$SBxxxx&W0 If the modems are not communicating properly, drop the leased line baud rate to 9600 (or less) by typing the following command at the terminal and pressing Enter: AT$MB9600&W0 Then, set Switches 13 and 14 (baud rate) appropriately. (See the owner s manual.)

24 24 Leased Line Modem Application Note 5. Cycle power on the modem. Type the following command and press Enter: ATL5 A list of parameters displays. Verify the following parameters are in the list: E0, Q1, &E1, $SBxxxx, &W0 where: xxxx = baud rate selected If any of these parameters are incorrect, check the switch settings, reenter the command in Step 4, and verify. 6. Cycle power on the modem. Type the following command and press Enter: ATL7 A list of parameters displays. Verify the following parameters are in the list: &BS0, Y1, $SBxxxx, &W0 where: xxxx = baud rate selected If any of these parameters is incorrect, reenter the commands in Step 4 and verify. After verifying that the modem is properly programmed, reconnect the leased line to the modem. 7. Type the following command and press Enter: ATS18? The modem should respond with 255. If not, reenter the commands in Step 4 and verify. 8. (Optional)Specify the dialback number at the OWS s modem (i.e., the originate modem) by typing the following command and pressing Enter, if you want to use the dialback feature: For touchtone: ATDT<phone number>n9 For pulse: ATDP<phone number>n9 Examples: ATDT9, N9 (opens outside line; sets as dialback number; uses tone dial; stores number in Location 9) ATDP N9 (sets as dialback number; uses pulse dial; stores number in Location 9) The 9, command in the first example opens an outside line (9) and pauses the modem for 2 seconds before it resumes dialing (,).

25 Leased Line Modem Application Note Type the following command and press Enter: ATL The phone number you entered should be listed under Register 9 (N9). If the number is incorrect, reenter the command in Step 8 and verify. 10. Change the MultiModemII (MT1432) switches to operational settings as shown in Table 18 to make the OWS modem the originate modem and the NCM (or JC/85 Gateway NCM) modem the answer modem, after configuring the MultiModemII (MT1432) unit. Table 18: MultiModemII MT1432 Unit Originate/Answer Settings Originate Modem (OWS Side; 16-Position Switch Block) Answer Modem (NCM Side; 16-Position Switch Block) Switch Position Switch Position 1 Up 1 Up 2 Up 2 Up 3 Down 3 Down 4 Up 4 Up 5 Down 5 Up 6 Up 6 Up 7 Up (NCM) Down (JC/85 Gateway NCM) 7 Up (NCM) Down (JC/85 Gateway NCM) 8 Up 8 Up 9 Down 9 Down 10 Down 10 Down 11 Up 11 Up 12 Down 12 Down 13 Up 13 Up 14 Up 14 Up 15 Up 15 Up 16 Up (2-wire) or Down (4-wire) 16 Up (2-wire) or Down (4-wire) The next step is to prepare the modem cables. Refer to Using the Remote Operator Workstation Application section.

26 26 Leased Line Modem Application Note Using the Remote Printer Application To configure the MultiModemII (MT1432, MT1932, or MT2834) unit: 1. Set the terminal to the following to enable it to configure the modems: 9600 baud, 0 or no parity, 8 data bits, 1 stop bit, half duplex 2. Set the modem s switches (located on the side) to the following to enable it for configuration: Table 19: MultiModemII Unit Configuration Settings Switch Position 1 Up 2 Down 3 Down 4 Up 5 Up 6 Up 7 Up 8 Down 9 Down 10 Up 11 Up 12 Down 13 Up 14 Up 15 Up 16 Up (2-wire) or Down (4-wire) 3. After setting the modem s switches to enable it for programming, disconnect the leased line from the back of the modem. 4. Set the modem s serial port to 9600 bps and the modem s leased line to 9600 bps, type the following commands, pressing Enter after each: AT&W1&F AT$SB9600S18=255 AT&E5&E7 AT&E1Q1E0&W0

Dial-Up / Leased-Line Modem. User Manual. AGM Electronics, Inc Dial-Up / Leased-Line Modem, Series ( ) 5019-1 Manual Rev A + - DLM CTS RTS DTR DSR

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