3com MSR 20 Manual Do Utilizador
FIC-8ASE/FIC-16ASE
159
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RS530 DCE cable
Figure 190 RS530 DCE cable
n
These cables are optional. Please order them together with the FIC-SAE card. By
default, they are not provided.
default, they are not provided.
Connecting the Interface
Cable
c
CAUTION: Do not plug or unplug interface cables into or from the FIC-SAE card to
prevent the device or ports from being impaired.
prevent the device or ports from being impaired.
Before connecting an FIC-SAE card, identify the type of the equipment to be
connected (that is, the synchronous/asynchronous mode, DTE/DCE mode, and so
on), signaling criterion required by the access equipment, baud rate, and line
clock.
connected (that is, the synchronous/asynchronous mode, DTE/DCE mode, and so
on), signaling criterion required by the access equipment, baud rate, and line
clock.
Step 1: Identify type of the interface to be connected and then choose the correct
synchronous/asynchronous serial interface cable.
synchronous/asynchronous serial interface cable.
Step 2: Plug the DB-28 connector of the cable to the corresponding DB-28 port on
the FIC-SAE card.
the FIC-SAE card.
Step 3: Connect the other end of the cable as follows:
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If the WAN is a DDN line, connect the cable to the port on the CSU/DSU.
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If the WAN is a dialup line, connect the cable to the serial port of an analog
modem.
modem.
Step 4: Power on the router, and check behavior of the LINK LED on the FIC-SAE
panel. It is OFF when fault occurs on the line and signal is not synchronized. Check
the line status.
panel. It is OFF when fault occurs on the line and signal is not synchronized. Check
the line status.
FIC-8ASE/FIC-16ASE
Introduction
Functions
FIC-8ASE/FIC-16ASE, 8-/16-port enhanced asynchronous serial interface card,
transmits, receives, and processes data traffic on asynchronous serial interfaces.
Each asynchronous serial interface can operate at a speed as fast as 115.2 kbps,
supporting terminal access service and asynchronous leased line. In addition, these
asynchronous serial interfaces can serve as the dialup access servers for the small
transmits, receives, and processes data traffic on asynchronous serial interfaces.
Each asynchronous serial interface can operate at a speed as fast as 115.2 kbps,
supporting terminal access service and asynchronous leased line. In addition, these
asynchronous serial interfaces can serve as the dialup access servers for the small