APPENDIX E
TROUBLESHOOTING
Please check this troubleshooting guide before calling BayTech Tech Support.
NOTE: This troubleshooting guide is geared towards the IBM PC, AT, XT family and compatibles.
PROBLEM | SYMPTOM | CAUSE |
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Data does not | Power LED | Unit is not |
| Put switch on |
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does not | turned on |
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| illuminate |
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| A/C power |
| Plug power cord into proper A/C power |
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| cord is not |
| outlet |
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| plugged in |
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| Fuse blown |
| Unplug A/C power cord and check |
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| internal fuse. If blown, replace with same |
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| type and rating of fuse |
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| On | Model 24SII |
| Call BayTech technical support |
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| all LEDs come | DES failure |
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| on and stay on |
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| No port LEDs | PC serial |
| Check cabling between PC and Model |
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| illuminate | cable |
| 24SII DES. Check handshaking lines |
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| using TERM program. All lines (except |
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| DCD which is not used) should be high. |
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| If lines are high, turn Model 24SII DES |
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| off. You should notice CTS and DSR |
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| lines go low. If they do not go low, there |
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| is a good chance you have an error in |
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| your cable. Typing characters from |
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| TERM should illuminate PC LED on |
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| Model 24SII DES. |
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| PC com port |
| Check installation procedures for PC's |
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| serial port. COM1 must generate an |
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| interrupt on IRQ4 (COM2 on IRQ3). |
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| Also, check any jumpers for defining port |
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| configuration which should be jumpered |
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| for DTE, not DCE. |
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| PC parallel |
| Check cable's continuity and pin |
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| cable |
| configuration. |
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Data does not | No port LEDs | Model 24SII |
| Make sure Model 24SII DES is |
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illuminate | DES is |
| connected to a designated PC COM |
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(continued) | (continued) | connected to |
| port. Check using TERM program. Turn |
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| a non- |
| Model 24SII DES off, and you should |
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| not see CTS/DSR lines toggle if you are |
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| COM port |
| on a |
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| PC is |
| Enter Model 24SII DES configuration |
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| connected to |
| mode and in the Status menu, check the |
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