6
Port and Cable Information for Cisco 2800 Series Routers
OL-5785-01
Preparing to Connect to a Network
For more information on BRI WAN interface cards, refer to the
Cisco Interface Cards Installation Guide
online document on Cisco.com.
CSU/DSU Connections
CSU/DSU WAN interface cards (WICs) are available to provide switched-56-kbps connections or full
or fractionalized T1 connections.
For more information on CSU/DSU WICs, refer to the
Cisco Interface Cards Installation Guide
online
document on Cisco.com.
Copyright © 2004 Cisco Systems, Inc. All rights reserved.
Table 3
ISDN BRI Cable Specifications
Specification
High-Capacitance Cable
Low-Capacitance Cable
Resistance (at 96 kHz)
160 ohms/km
160 ohms/km
Capacitance (at 1 kHz)
120 nF
1
/km
1.
nF = nanoFarad
30 nF/km
Impedance (at 96 kHz)
75 ohms
150 ohms
Wire diameter
0.024 in. (0.6 mm)
0.024 in. (0.6 mm)
Distance limitation
32.8 ft (10 m)
32.8 ft (10 m)
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