Installation guide

3. Cabling
8620-A2-GN20-50 June 2004
3-7
Connecting to a Modem for Remote Management (with MCP)
Before connecting the 8620 BAC to a dial-up modem, configure the modem with
the following settings:
 Set the modem for auto answer. For example, ATS0=1.
 Turn off character echo. For example, ATE0.
 Enable result codes in originate mode only. For example, ATQ2.
 Set the modem to ignore Data Terminal Ready (DTR). For example, AT&D0.
Procedure
To connect the 8620 BAC to a dial-up modem:
1. Connect an 8-pin modular plug-ended serial cable into the SERIAL MCP port
of the 8620 BAC.
2. Plug the other end of the cable into your modem’s serial port using a DB25
(RS-232 male) adapter, supplied with the MCP card, and a Null Modem
adapter.
ALARM
CLOCK
AB
SERIAL
SCM MCP
LAN
SCM MCP
SIM
00-16908
Dial-up
Modem
DB25
Adapter
Null
Modem
Serial MCP