Figure 7-7
8-Port ISDN BRI with NT1 Network Module (U Interface)
BRI 7
BRI
U
B1
B2
BRI 3
B1
B2
4-Port and 8-Port ISDN BRI U Network Modules
NT1 LEDs
BRI 6
BRI 5
B1
B1
B2
B2
BRI 2
BRI 1
B1
B1
B2
B2
ISDN BRI LEDs
Connecting ISDN BRI Network Modules to a Network 7-7
BRI 4
B1
B2
BRI 0
B1
B2
EN
Enable LED