Avaya CMC1 manual Typical modular jack pinout

Install 909A/B universal coupler

Table 64: J2 Pin Assignments (Accessory Connections) (continued)

Pin	Color	Designation	Description
7	Green	COS2	Remote busy-out control contact closure from
			music source
7	White-Brown	CBS1/C1	Seizure indication provided to music source
8	Brown	CBS2/C2	Seizure indication provided to music source
			2 of 2

! CAUTION:

Do not plug the cable into J3 before all cross-connects are completed. Damage to the 909A/B universal coupler may occur.

Table 65: J3 Pin Assignments (Power Connections)

Pin	Color	Designation		Description
1, 3, 4, & 7	—	—	Not used
2	Black	GRD		-48 RET or ground lead from
				system or from positive lead of
				power supply
5	Yellow	-48 VDC		-48 VDC from system or from
				negative lead of power supply

Figure 112 shows the physical locations of the pins for J1, J2, and J3.

Figure 112: Typical modular jack pinout

1 8 2 5

mod_jack RBP 041796

Figure notes:

1. J1 and J2 8-pin modular jacks 2. J3 7-pin modular jack

Issue 10 June 2005 345