Datasheet

3-2
Cisco Interface Card Hardware Installation Guide
OL-1919-18
Chapter 3 Connecting Serial Interface Cards to a Network
Serial WAN Interface Cards (WICs)
Note In Cisco 1600 series routers, the 1-port serial WIC supports asynchronous data rates up to 115.2 kbps,
and synchronous data rates up to 2.048 Mbps. The 2-port serial WIC is not supported on this router.
Each serial WIC has one LED, labeled CONN for each port, which lights when the serial port is
connected. When the port is in DTE mode, the CONN LED indicates that Data Send Ready (DSR), Data
Carrier Detect (DCD), and Clear To Send (CTS) have been detected. When the port is in DCE mode, it
indicates that Data Terminal Ready (DTR) and Ready To Send (RTS) have been detected.
Figure 3-1 1-Port Serial WIC Front Panel (WIC-1T)
Figure 3-2 2-Port Serial WIC Front Panel (WIC-2T)
2-Port Asynchronous/Synchronous Serial WIC
The 2-port asynchronous/synchronous (A/S) WIC (WIC-2A/S), shown in Figure 3-3, provides an
EIA/TIA-232, EIA/TIA-449, V.35, X.21, DTE/DCE, EIA-530, or EIA-530A serial interface to a Cisco
modular router.
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.
Note In Cisco 3700 series, Cisco 3600 series, Cisco 2600 series, Cisco 1720, and Cisco MWR 1941-DC
routers, the 2-port A/S WIC supports both asynchronous (up to 115.2 kbps) and synchronous (up to 128
kbps) data rates.
Note The 2-port A/S WIC is not supported in Cisco 1600 series routers.
SERIALCONN
41210
Serial port CONN LED
SEE MANUAL BEFORE INSTALLATION
SERIAL 1
SERIAL 0
CONN
CONN
WIC
2T
41213
Serial ports
CONN LEDs