Avaya 555-233-116 manual BSY2/BY2

909A/B universal coupler

Table 2. J1 Pin Assignments (System Connections)

Pin	Color	Designation	Description
1	White-Orange	—	Not Used
2	Orange	PG2/BZ2	Seizure control lead, connected to -48 VDC from
			the system or from the 909A/B when the protection
			paging switch is set to C2, or to -48 VDC on the
			909A/B when protection/paging switch is set to C1
3	White-Green	PG1/BZ1	Seizure control lead, connected to SZ lead from
			the AUX trunk when the protection/paging switch
			is set to C2, or to -48 VDC on the 909A/B when the
			protection/paging switch is set to C1
4	Blue	R	Ring lead
5	White-Blue	T	Tip lead
7	Green	BSY2/BY2	Busy/busy-out lead, connected to S1 lead from the
			AUX trunk
7	White-Brown	BSY1/BY1	Busy/busy-out lead, connected to S lead from the
			AUX trunk
8	Brown	—	Not Used

Table 3. J2 Pin Assignments (Accessory Connections)

Pin	Color	Designation	Description
1	White-Orange	CMS1/M1	Customer-supplied music source
2	Orange	CMS2/M2	Customer-supplied music source
3	White-Green	COS1	Remote busy-out control contact closure from
			music source
4	Blue	CR	Customer ring lead
5	White-Blue	CT	Customer tip lead
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

! CAUTION:

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

555-233-116 Issue 4 October 2002 27