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Communications Setup
025-9416
37
IBM-Compatible
Office Computer
PSTN
To Telephone
Trunk Cards
Model 640
To Internal
or external
modem
RJ-11
phone
line
Figure 13. Modem Connection to the Model 640
To setup the system for modem connection, follow the steps below:
q
1.
Determine which trunk of the Model 640 to use for modem maintenance.
q
2.
Connect the office PC modem to a standard telco line using RJ-11 cable. If the PC
modem is external, connect the modem to the computer’s serial COM port using RS-
232 cable (usually standard 25-pin male connectors on both ends).
Note:
Make sure to use the modem jacks labeled “LINE” or “TELCO” if an external PC
modem is installed. Do not connect to the “PHONE” or “LOCAL” jacks, as they are
for telephone sets only.
q
3.
Connect the desired Model 640 trunk to an end-to-end, loop start telco line. Use the
50-pin trunk and radio station interface for connections.
ESTABLISHING ZLINK COMMUNICATIONS
A communications link must be established once the physical connections have been completed
between the Model 640 and the office computer, console, or dumb terminal. Follow one of the
procedures below to initiate a ZLINK connection.
Note:
This subsection gives only an overview of how to setup MCU for test purposes. Refer
to the Model 640 Operating and Programming Manual (Part No. 025-9417) for
details on the software operation of the paging terminal.
ZLINK Connection Through MCU
This procedure describes how to establish communications with the Model 640 using MCU.
Recall that MCU can only be run on an IBM-compatible office computer. If the ZLINK connec-
tion is made with a dumb terminal only, skip this subsection.
Follow the steps below to configure MCU for ZLINK communications.
Summary of Contents for 640 DAPT XTRA
Page 2: ......
Page 6: ...Statements vi 025 9416...
Page 20: ...Introduction 8 025 9416...
Page 26: ...Specifications 14 025 9416...
Page 96: ...Installation 84 025 9416...
Page 126: ...Optional Equipment Installation 114 025 9416...
Page 134: ...Voice Prompts 122 025 9416...
Page 174: ...Parts Lists and Schematics 162 025 9416 Schematic...
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Page 182: ...Parts Lists and Schematics 170 025 9416 Silkscreen...
Page 185: ...Parts Lists and Schematics 025 9416 173 Schematic...
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Page 190: ...Parts Lists and Schematics 178 025 9416 Silkscreen...
Page 193: ...Parts Lists and Schematics 025 9416 181 Schematic...
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Page 196: ...Parts Lists and Schematics 184 025 9416 Silkscreen...
Page 198: ...Parts Lists and Schematics 186 025 9416 RAM Disk 702 9386B ROM Disk 702 9389B...
Page 199: ...Parts Lists and Schematics 025 9416 187 TNPP Interface 702 9362C 2...
Page 200: ...Parts Lists and Schematics 188 025 9416 Terminal Block Adapter 702 9470B...
Page 201: ...Parts Lists and Schematics 025 9416 189 CONFIGURATION DIAGRAMS Dual Trunk Telco DID 024 0076A...
Page 202: ...Parts Lists and Schematics 190 025 9416 Dual Trunk Telco End to End 024 0077A...
Page 203: ...Parts Lists and Schematics 025 9416 191 Dual Trunk Telco E M 024 0078A...
Page 204: ...Parts Lists and Schematics 192 025 9416 Dual Trunk Telco Ground Start 024 0079A...
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