Chapter 3 - Troubleshooting
Chapter 3: Troubleshooting
Situation A: The modem does not answer through the serial linkIf the Wireless MultiModem does not answer through the serial link upon an attempted transmission of data or voice signals, see the table below for possible causes and solutions.
Solutions for ‘no connection through serial link’ situation
If the modem |
| Then ask … |
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returns … |
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(nothing) |
| Is the modem powered correctly? | Provide a power supply in the range of 5 to | ||
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| 32Vdc. | |
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| Is the serial cable properly connected to | Connect cable per step 2 of the ”Electrical | ||
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| the modem and PC sockets? | Installation and Configuration” procedure. | ||
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| Verify cable pinout per”RS232 | |
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| Connector Pinout” table, esp Rx & Tx | |
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| connections. | |
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| Verify reception & transmission. | |
Is the communication program | In communications program, verify that |
properly configured? | modem parameters have been set to |
| the values shown here: |
| Data Bits = 8 |
| Parity = none |
| Stop Bits = 1 |
| Baud = 115200 bps |
Is another program interfering with | Close any such application program. |
the communication program? |
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