Chapter 2 - Blade Installation and StartupChapter 2 2 - 752.7.4.2 Connector Pin-Outs on 4TLIU BladeRJ61 Cable Connector - 2-Wire E&M, CN1A - CN1DPin No. Connection Description1 - Not Used2 M Control signal to trunk3 - Not Used4 R Voice signal both ways5 T Voice signal both ways6 - Not Used7 E Control signal from trunk8 - Not UsedRJ61 Cable Connector - 4-Wire E&M, CN1A - CN1DPin No. Connection Description1 - Not Used2 M Control signal to trunk3 R Voice signal to trunk4 R1 Voice signal from trunk5 T1 Voice signal from trunk6 T Voice signal to trunk7 E Control signal from trunk8 - Not Used• Note: Using Type I or Type IV, a system loop back test can be performed byconnecting CN1A to CN1B.CN1AE →M →R →T →CN1BMERT1234567812345678
