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
No connection
Signal −− Tip or Ring
Signal −− Tip or Ring
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 |
|
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ISDN BRI Cable Specifications
The table below lists the ISDN BRI cable specifications.
Specification | High−capacitance | Low−Capacitance |
| Cable | Cable |
Resistance (at 96 |
|
|
kHz) | 160 ohms/km | 160 ohms/km |
| ||
Capacitance (at 1 |
|
|
kHz) | 120 nF1/km | 30 nF/km |
| ||
Impedance (96 |
|
|
kHz) | 75 ohms | 150 ohms |
| ||
Wire diameter | 0.024" (0.6 mm) | 0.024" (0.6 mm) |
| ||
Distance | 32.8' (10 m) | 32.8' (10 m) |
|
|
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Cisco − WIC−1B−S/T and WIC−1B−U WAN Interface Cards Cable Specifications
