Nortel 1000 Installation And Commissioning Manual page 388

Page 388 of 466
Figure 172
Attendant console connections
Console power
from AUX
cable
(one console
only)
Note: As an alternative, console
power can be obtained from the
4 th and 5 th TNs on the circuit
card.
To 4th TN Tip
To 4th TN Ring
To 5 th TN Tip
To 5 th TN Ring
(Note 1)
Note 1: The M2250 is powered using the line circuits and if required from the AUX cable. In addition to
the primary TN, secondary TN and ASMTN, two TNs are for power from the AUX cable are cabled to
the M2250 through the + AUX and - AUX leads. 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.
NN43041-310 Standard 01.11
Installing Line cards and cross-connecting telephones
To 1st TN
To 2nd TN
To 3rd TN
To +15 AUX
(W-G 1 dot wire)
on AUX cable
To -15 AUX
(G-W 1 dot wire)
on AUX cable
+VPS
(Note 2)
+VPS RTN
October 2008
Cross-connect
block
W-BL
BL-W
W-O
O-W
ASM/
W-S
ADN
S-W
+ AUX
R-O
O-R
- AUX
R-G
G-R
BK-BL
GND
BL-BK
TC
Y-BL
BL-Y
Y-O
O-Y
Relay 2 V-S
Relay 1 S-V
Console
connector
26
1
27
2
30
5
32
Cable to
7
M2250
33
Console
8
36
11
41
16
42
17
Cable from
console to
cross-connect
50
terminal
25
553-8352.EPS