Instruction manual
Optional Equipment Installation
025-9416 107
Status V
CallCount 0
2-port Serial Card Hardware Installation
1. Power down M640.
2. Remove top cover.
3. Locate and remove the card slot cover for J8.
4. Install M640 2-port serial card into slot J8. Secure with screw removed in step 3.
5. Power up M640.
Modem Setup and Interfacing
1. Connect 9-pin end of cable 709-7329 to port 1 of M640 2-port serial card.
2. Connect 25-pin end of cable 709-7329 to external modem.
3. Connect power supply to modem and plug into AC power.
4. Connect phone line to RJ11 “Telco” jack of the modem.
Testing and Debugging
1. From the main menu in MCU, select COMM then ZLINK. This should connect with the
M640 and display a + prompt.
2. At the + prompt enter:
Traffic -ar
3. Send a page to one of the subscribers set up in step 3 under M640 Subscriber Database
Programming.
4. Verify that you hear the following sequence from the modem.
a. Modem comes “Off Hook” and you hear dial tone.
b. Modem dials paging provider’s modem #.
c. Paging provider’s modem answers and modems negotiate connection.
5. Verify you see a posting similar to the following in the Traffic screen for the subscriber
under test.
820-6363 page sent 07:59:25a 1 8BO TAP00D ID [7-digit ID#] D 4 <message>
6. If test was successful, build and test all other subscribers. If test was not successful, and/or
you see the error message “Page No Xmit” in the Traffic screen, review all of your
programming, then retest.