3Com Router Module Guide
Chapter 2 Smart Interface Cards
2-25
2.6.5 Interface Cable
The connection cables for ROUTER 1-PORT ANALOG MODEM SIC are telephone
cables with ferrite core. Both ends of the cables are RJ11 connectors.
For cable
pinouts, refer to
Low-End and Mid-Range Series Routers Cable Manual
.
Caution:
Relevant cables are included in the standard shipment package of ROUTER 1-PORT ANALOG MODEM
SIC.
2.6.6 Connecting Interface Cable
Caution:
z
You should connect a cable to the port with the correct mark. Misplugging is prone to impair the
SIC/MIM and even damage the router.
z
You are recommended to install a special lightning arrester on the input end of the telephone line in
order to avoid the lightning effects more efficiently.
If the SIC has been properly installed, follow these steps to connect the cable:
Step 1: Insert the end with ferrite core into one LINE port of ROUTER 1-PORT
ANALOG MODEM SIC;
Step 2: Plug the other end of the cable into the telephone wall jack;
Step 3: Power on the Router, and check the LEDs of the corresponding slot on the
front panel: ON means that the SIC is operating normally and OFF means that the
POST of the SIC has failed. In the latter case, please contact your agent.
2.7 Router 1-Port FXS SIC/FXO SIC and Router 2-Port FXS
SIC/FXO SIC
2.7.1 Introduction
1/2-port voice subscriber circuit interface card (Router 1 or 2-Port FXS SIC) and
1/2-port voice AT0 analog trunk interface card (Router 1 or 2-Port FXO SIC) serve to
