3 - 20 Chapter 3
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.
RJ61 Cable Connector - 4-Wire E&M, CN1A - CN1D
Pin No. Connection Description
1 - Not Used
2 M Control signal to trunk
3 R Voice signal to trunk
4 R1 Voice signal from trunk
5 T1 Voice signal from trunk
6 T Voice signal to trunk
7 E Control signal from
trunk
8 - Not Used
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