Enterasys Networks XSR-3020 - Manual (Page 102)

Cable, CompactFlash and Accessory Specifications
A-16
1/2-Port BRI-S/T NIM Card Ports
The XSR offers a serial NIM card for 1 or 2 WAN interfaces over an ISDN-S/T BRI line, as shown
in
Figure A-18 . Port 0 and 1 LEDs shine when the lines are active and ready to receive traffic. Refer
to Figure A-19 for pinout assignments.
Figure A-18 ISDN BRI-S/T NIM Card (RJ-45 ports shown)
Figure A-19 ISDN BRI-S/T -NIM Pinouts
Port 0 Activation LED Port 1 Activation LED
Pin Signal
1 Unused
2 Unused
3 Transmit (+)
4 Receive (+)
5 Receive (-)
6 Transmit (-)
7 Unused
8 Unused
BRI-S/T
Pin 8 Pin 1