Appendix C. Cables
C–10
An LIU provides
❐
One or two 9-pin D-shell females
❐
One or two RJ-45 modular jacks
You receive one E1-to-LIU cable with the single-interface
D-shell-compatible E1/ISDN module or two cables with
the dual-interface version.
The cable between the LIU and the E1/ISDN network is
the LIU-to-network cable. You provide this cable.
When building your own LIU-to-network cable, use no
more than 750 feet (228.5 meters) of Belden 9844
computer cable, or equivalent.
These tables list the pin assignments for a D-shell or an
RJ-45 LIU-to-network cable:
❐
Table C–5 lists the pin assignments for a D-shell
LIU-to-network cable.
❐
Table C–6 lists the pin assignments for an RJ-45
LIU-to-network cable.
Table C–5. D-Shell LIU-to-Network Cable Pin Assignments
Pin
Function
Signal
2
Trve (tip)
LTT
3
Transmit -ve (ring)
LTR
4
Rve (tip)
LRT
5
Cable shield (screen)
SHLD
9
Receive -ve (ring)
LRR
The remaining pins are not used.