Section 2: PCB Installation and Startup
Aspila EX Hardware Manual Section 2: PCB Installation and Startup 2-29
2
Connector Pin-Outs on 4TLIU PCB
RJ61 Cable Connector - 2-Wire E&M, CN100 - CN400
Pin No. Connection Description
1 SB Ground wire for control
2 M Control signal to trunk
3-
4 R Voice signal both ways
5 T Voice signal both ways
6-
7 E Control signal from trunk
8 SG Ground wire for control
RJ61 Cable Connector - 4-Wire E&M, CN100 - CN400
Pin No. Connection Description
1 SB Ground wire for control
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 SG Ground wire for control
• Note: Using Type I or Type V, a system loop back test can be performed by
connecting CN100 to CN200.
CN100
E ®
M ®
R ®
T ®
CN200
M
E
R
T