NEC UX5000 - Connector Pin-Outs on 4 TLIU Blade

Chapter 2 - Blade Installation and Startup
Chapter 2 2 - 75
2.7.4.2 Connector Pin-Outs on 4TLIU Blade
RJ61 Cable Connector - 2-Wire E&M, CN1A - CN1D
Pin No. Connection Description
1-Not Used
2MControl signal to trunk
3-Not Used
4RVoice signal both ways
5TVoice signal both ways
6-Not Used
7EControl signal from trunk
8-Not Used
RJ61 Cable Connector - 4-Wire E&M, CN1A - CN1D
Pin No. Connection Description
1-Not Used
2MControl signal to trunk
3RVoice signal to trunk
4R1Voice signal from trunk
5T1Voice signal from trunk
6TVoice signal to trunk
7EControl signal from trunk
8-Not Used
• Note: Using Type I or Type IV, a system loop back test can be performed by
connecting CN1A to CN1B.
CN1A
E →
M →
R →
T →
CN1B
M
E
R
T
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