Chapter 4 – Troubleshooting and Frequently Asked Questions
Chapter 4 – Troubleshooting and
Frequently Asked Questions
Troubleshooting Examples
Situation A: The modem does not respond through the serial link
If the wireless MultiModem does not respond 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 | Then ask … | Action |
modem |
|
|
returns … |
|
|
(nothing) | Is the modem | Provide a power supply in the range of 5 to 32Vdc. |
| powered correctly? |
|
| Is the serial cable | Check the cable connection. |
| properly connected to | Verify cable pinout. |
| the modem and PC | Verify reception & transmission. |
| sockets? |
|
| Is the communication | In communications program, verify that modem |
| program properly | parameters have been set to the values shown here: |
| configured? | Data bits = 8 |
|
| Parity = none |
|
| Stop Bits = 1 |
|
| Baud = 115200 bps |
| Is another program | Close any such application program. |
| interfering with the |
|
| communication |
|
| program? |
|
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