28i/124i
Remote Modem Installation Instructions
1
Use these instructions to install a 28i or 124i Remote
Modem in six easy steps:
1.
Initialize the Site Modem
2.
Connecting to the System
3.
Test Your Site Modem Setup
4.
Set Up Your Office Modem
5.
Connecting to the Site Modem
6.
Upload a Test Block
Your remote modem connects to a LAPB Module in the system cabinet. The 28i
uses the LAPB P/N 92706 and the 124i uses P/N 92008. The LAPB Module is a
daughter board that plugs in the CPRU PCB. Using one of the cable sets listed
below, these modules allow you to connect to a local PC or a remote modem allow-
ing you to program the system.
28i PC Programming Cable Sets
For local PC connections, use DB9-to-8-Pin Cable Set (P/N 92708-DB9).
This cable set consists of the following two components:
●
8-Pin Circular Mini-DIN to Mod-8 Cable (P/N 92707A)
This 10’ long cable has an 8-pin right angle connector on one end (for connect-
ing to the LAPB) and a standard 8-pin modular plug on the other end.
●
DB9-to-Mod-8 Adaptor (P/N 85980)
One end of this adaptor accepts an 8-pin modular plug. The other end is a stan-
dard DB9 female connector that you can plug into a 9-pin RS232 (DTE) port on
your PC or laptop.
For modem connections, use DB25-to-8-Pin Cable Set (P/N 92708-DB25).
This cable set consists of the following two components:
●
8-Pin Circular Mini-DIN to Mod-8 Cable (P/N 92707A)
This 10’ long cable has an 8-pin right angle connector on one end (for connect-
ing to the LAPB) and a standard 8-pin modular plug on the other end.
●
DB25-to-Mod-8 Adaptor (P/N 85981)
One end of this adaptor accepts an 8-pin modular plug. The other end is a stan-
dard DB25 male connector. This connector is plugged into the DB25 female
connector on the cable that ships with the CNet modem. The 9-pin male connec-
tor on the CNet modem cable is then plugged into the DCE port of the modem.
To set up the remote modem for the 384i
and 704i, go to page 11.
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