Cisco Systems Network Card WIC 1B U User Manual

Cisco − WIC−1B−S/T and WIC−1B−U WAN Interface Cards Cable Specifications  
Table of Contents  
Requirements..........................................................................................................................................1  
Conventions............................................................................................................................................1  
BRI S/T WAN Interface Card LEDs......................................................................................................2  
WIC−1B−U WAN Interface Card.......................................................................................................................3  
Related Information.............................................................................................................................................4  
i
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The Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) WAN interface cards are shared  
between the Cisco 1600, 1720, 2600 and 3600 Series Routers. Each card supports a single ISDN BRI port  
offered with and without the NT1 interface.  
The S/T WAN interface card module (WIC−1B−S/T) needs the external Network Termination 1 (NT1) device  
whereas the U WAN interface card module (WIC−1B−U) has an internal NT1 device.  
Cables  
The WIC−1B−S/T interface card requires RJ−45 to RJ−45 straight−through cables (provided by the  
customer).  
ISDN BRI S/T Port Pinouts  
The table below shows the ISDN BRI S/T port pinouts (RJ−45).  
8 Pin1  
TE2  
Transmit  
Receive  
Receive  
Transmit  
NT3  
Receive  
Polarity  
3
4
5
6
+
+
Transmit  
Transmit  
Receive  
1Pins 1, 2, 7, and 8 are not used.  
2TE refers to terminal terminating Layer 1 aspects of TE1, TA, and NT functional groups. This applies to the  
Cisco 1603 and the ISDN BRI S/T WAN interface card.  
3NT refers to network terminating Layer 1 aspects of NT1 and NT2 functional groups. This applies to the  
Cisco 1604 ISDN S/T port.  
BRI S/T WAN Interface Card LEDs  
The table below lists the BRI S/T WAN interface card LEDs and their meaning.  
LED  
Meaning  
B1  
Active connection on B1 channel  
B2  
Active connection on B2 channel  
OK ISDN port has established a connection with the central  
office switch  
Cisco − WIC−1B−S/T and WIC−1B−U WAN Interface Cards Cable Specifications  
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WIC−1B−U WAN Interface Card  
ISDN BRI U Port Pinouts (RJ−45)  
The table below lists the ISDN BRI U port pinouts and their function.  
8 Pin1  
Function  
3
No connection  
4
Signal −− Tip or Ring  
5
Signal −− Tip or Ring  
6
No connection  
1Pins 1, 2, 7, and 8 are not used.  
ISDN BRI U WAN Interface Card LEDs  
The table below lists the ISDN BRI U WAN interface card LEDs and their meaning.  
LED  
Meaning  
B1  
Active connection on B1 channel  
B2  
Active connection on B2 channel  
NT1 NT1 has established a connection with the central office  
switch  
ISDN BRI Cable Specifications  
The table below lists the ISDN BRI cable specifications.  
Specification  
High−capacitance  
Cable  
Low−Capacitance  
Cable  
Resistance (at 96  
kHz)  
160 ohms/km  
120 nF1/km  
75 ohms  
160 ohms/km  
30 nF/km  
Capacitance (at 1  
kHz)  
Impedance (96  
kHz)  
150 ohms  
Wire diameter  
Distance  
0.024" (0.6 mm)  
32.8' (10 m)  
0.024" (0.6 mm)  
32.8' (10 m)  
Cisco − WIC−1B−S/T and WIC−1B−U WAN Interface Cards Cable Specifications  
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limitation  
1 nF = nanoFarad  
Related Information  
Understanding the 1−Port ISDN BRI (S/T) WAN Interface Card (WIC−1B−S/T or  
WIC36−1B−S/T)  
Technical Support − Cisco Systems  
All contents are Copyright © 1992−2005 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.  
Updated: Jun 27, 2005  
Document ID: 46796  
Cisco − WIC−1B−S/T and WIC−1B−U WAN Interface Cards Cable Specifications  
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