Lucent Technologies Release 6 manual TST4

DEFINITY Enterprise Communications Server Release 6	Issue 5
Installation and Test for Multi-Carrier Cabinets 555-230-112	May 1998
5 Install and Wire Telephones and Other Equipment
Emergency Transfer Units and Associated Telephones	Page 5-40

Table 5-14. Pin Assignments for 25-Pair Connector — Continued

	Pin	Color	Designation	Connector/Description
41		Y-BL	TST4	Tip-Emergency Terminal 4
16		BL-Y	RST5	Ring-Emergency Terminal 4
42		Y-O	TTC5	Tip-PBX Trunk Circuit 5
17		O-Y	RTC5	Ring-PBX Trunk Circuit 5
43		Y-G	TTK5	Tip-CO Trunk Circuit 5
18		G-Y	RTK5	Ring-CO Trunk Circuit 5
44		Y-BR	TLC5	Tip-PBX Line Port 5
19		BR-Y	RLC5	Ring-PBX Line Port 5
45		Y-S	TST5	Tip-Emergency Terminal 5
20		S-Y	RST5	Ring-Emergency Terminal 5
46		V-BL	COM1	Common 1 Relay Contact
21		BL-V	NO1	Normally Open 1 Contact
47		V-O	NC2	Normally Closed 2 Contact
22		O-V	NC1	Normally Closed 1 Contact
48		V-G	COM2	Common 2 Relay Contact
23		G-V	NO2	Normally Open 2 Contact
49		V-BR
24		BR-V
50		V-S	GRD	Ground From PBX
25		S-V	-48PX	-48V from Alm Panel

Continued on next page

10.On the trunk identification label at the bottom of the panel, record the trunk line, extension, and location for each circuit.

11.Attach a label identifying each voice terminal designated as an emergency terminal. The labels are provided with the unit.

12.Check the system for normal operation:

—Set the test switch (switch 12) to NORMAL OPERATION.

—Ensure the power supply is providing -48 VDC at 80 mA maximum.

—The power LED should be ON.

—Verify there is dial tone on all emergency transfer sets.

If all of the above conditions are not met, replace the panel.