Datasheet

3-4
Cisco Interface Card Hardware Installation Guide
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Chapter 3 Connecting Serial Interface Cards to a Network
Serial WAN Interface Cards (WICs)
Connecting the Serial WAN Interface Card to the Network
After you install the serial WIC, use the appropriate serial cable to connect the WIC’s serial port to one
of the following types of equipment. (See Figure 3-5.):
• An asynchronous modem, if connecting to an analog telephone line
• A synchronous modem, DSU or CSU, or other DCE, if connecting to a digital WAN line
Note For connection limitations, see the “1- and 2-Port Serial WICs” section on page 3-1, and the “2-Port
Asynchronous/Synchronous Serial WIC” section on page 3-2.
To connect the serial card to the WAN, follow these steps:
Step 1 Confirm that the router is turned off.
On the Cisco MWR 1941-DC router, turn off power by turning OFF the DC power source at the circuit
breaker and taping the circuit breaker into the OFF position.
Caution To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety,
connect the 2-port A/S WAN interface card (WIC-2A/S) only to intra-building or non-exposed wiring or
cabling. The intrabuilding cable must be shielded and the shield must be grounded at both ends.
Step 2 (Optional) Connect the surge protection cable to the connector on the card faceplate. (See Figure 3-4.)
Step 3 (Optional) Connect one end of the appropriate serial cable to the other connector on the surge protector
cable. (See Figure 3-4.)
Figure 3-4 Connecting the Cisco Surge Protector Cable (CAB-SS-SURGE) to a Serial WAN
Interface
Step 4 Connect one end of the appropriate serial cable to the connector on the card faceplate.
Step 5 Connect the other end of the cable to the appropriate type of equipment, as shown in Figure 3-5.
95969
SEE MANUAL BEFORE INSTALLATION
SERIAL 1
SERIAL 0
CONN
CONN
WIC
2T
Surge protection cable
(CAB-SS-SURGE)
Serial cable