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3.115 bytes |
Service Hints & Tips |
Document ID: DETR-469KYW |
Aptiva - Considerations with serial port and Lucent WinModem
Applicable to: World-Wide
In Windows 95, the Lucent Winmodem and system serial port use the following resources:
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Device |
Resources |
|
Lucent Modem |
COM1 | I/O 378h | IRQ 4 |
|
External Serial Port |
COM2 | I/O 278h | IRQ 3 |
When rebooting into MS-DOS mode, you must run a TSR utility to enable the modem. The TSR will be in either c:\windows\options\cabs, or c:\windows\system
For 2140/2142/2137 this is LTTSR.EXE
For 2161/2162 this is LEPNPTSR.EXE
However, if you have a 2161/62 and you install the V3.30 driver, you will have to use LTTSR.EXE.
In MS-DOS mode, the modem and serial port use the following resources:
DOS Mode with no EMS memory - Plug and Play Operating System DISABLED
|
Device |
Resources |
|
External Serial Port |
COM1 | I/O 378h | IRQ 4 |
|
Lucent Modem |
NOT ENABLED - TSR CANNOT RUN |
DOS Mode with EMS memory - Plug and Play Operating System DISABLED
|
Device |
Resources |
|
External Serial Port |
COM1 | I/O 378h | IRQ 4 |
|
Lucent Modem |
not enabled until TSR runs |
|
(after running TSR) |
COM1 | I/O 378h | IRQ 4 - and now external serial port is disabled |
Note: If Plug and Play Operating System is ENABLED then the external serial port will never be available.
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Search Keywords |
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Document Category |
Modems | |
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Date Created |
23-03-99 | |
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Last Updated |
23-03-99 | |
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Revision Date |
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Brand |
IBM Aptiva | |
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Product Family |
Aptiva | |
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Machine Type |
2137, 2140, 2142, 2161, 2162 | |
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Model |
All | |
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TypeModel |
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Retain Tip (if applicable) |
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Reverse Doclinks |