Nortel Networks Option 11C Mini manual Attendant Console connections, Bl-Y +Vps Rtn

Page 238 of 332 Chapter 17 — Connecting the telephones

Figure 69

Attendant Console connections

	Cross-connect		Console
			connector
		block
	To 1st TN	W-BL	26
		BL-W	1
	To 2nd TN	W-O	27
			2
		O-W
	ASM/	W-S	30
	To 3rd TN ADN
		S-W	5
		R-O	32	Cable to
		O-R	7
				M2250
		R-G	33
				Console
			8
		G-R
Console power can be
obtained from the	GND	BK-BL	36
4th and 5th
	TC	BL-BK	11
TNs on the circuit card.
To 4th TN Tip	+VPS	Y-BL	4
To 4th TN Ring	(Note 2)	BL-Y	16
	+VPS RTN	Y-O	42
To 5th TN Tip		O-Y	17	Cable from
To 5th TN Ring				console to
(Note 1)	Relay 2	V-S	50	cross-connect
	Relay 1	S-V	25	terminal

Note 1: The M2250 is powered through the line circuits.

In addition to the primary TN, secondary TN and ASMTN, two TNs are cabled to

the M2250. Maximum loop length is 3000 ft (915 m) of 24 AWG (5.0 Metric Wire Gauge).

Note 2: When additional options are used (BLF) an additional 16V dc power supply is required. The 16V dc source is cabled through +VPS and +VPS RTN leads. The maximum

distance from the console to the power source is 120 ft (36 m) of 24 AWG (5.0 Metric Wire Gauge) wire.

553-8352.EPS

553-3021-209 Standard 3.00 April 2000