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Appendix E. Modem Setup
Modems for 3745 Models 130 to 160
The following is a list of modems that can be set up to operate between the remote
console and the 3745:
In the U.S.A.:
In the U.S.A., Canada, and Japan:
In other countries:
For information about setting up RSF modems, see "RSF Modems" on page E-7.
Setting Up
For the modem to be compatible between the remote console and the 3745, refer
to the modem's documentation and set the following modem characteristics:
Notes:
Copyright IBM Corp. 1992, 2000
IBM 5841 Modem
IBM 5842 Modem
IBM 5853 Modem (set to half speed)
Equivalent compatible with Bell 212 A or ITU-T V.22 (1200 bps)
Modems compatible with ITU-T V.22 alternative B (1200 bps)
Switched line connection
Duplex operation
Asynchronous operation
1200 bps speed
3745 modem set to auto-answer
Remote console modem set to manual dialing
1. Review the modem documentation to ensure compatibility with the 3745. In
particular, check the following conditions:
If Error Checking Link (ECL) is disabled.
If the modem has a Test Mode, turn it off at the 3745 end.
If the modem is programmable, set the control of the Data Set Ready
(DSR) signal to normal, so that it does not get raised by the Data Terminal
Ready (DTR).
2. Some IBM PC modems disconnect from the switched network when the carrier
signal drops. To prevent this, set the modem at the PC end to RTS
Permanent. For more information, refer to your modem documentation.
E-1
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