NEC ux5000 Hardware Manual page 210

Chapter 3 - Installing Extensions and Trunks
Installing 4-wire/8-lead Tie Lines:
1. Punch down four pair cross-connect leads for each tie line on the CPE (customer) side of the RJ21X.
2. Punch down the other end of the cross-connect to the line (A) block leads (in groups of 4 tie lines).
3. Make sure the UX5000 is programmed correctly for 4-wire (Program 10-03-02) and the type is selected
(Program 10-03-03) for Type I or V.
4. Punch down a 25-pair cable to the opposite side of the line (A) block.
5. Plug in the corresponding RJ-61 connector to the 4TLIU blade connector.
6. Install bridging clips on the A block. Label cross-connect blocks A2, A3, etc.
3 - 20
RJ61 Cable Connector - 4-Wire E&M, CN1A - CN1D
Pin No.
1
2
3
4
12345678
5
6
7
8
Connection Description
- Not Used
M Control signal to trunk
R Voice signal to trunk
R1 Voice signal from trunk
T1 Voice signal from trunk
T Voice signal to trunk
E Control signal from
trunk
- Not Used
Chapter 3