User's Manual

Page 268 of 332 Chapter 18 — Connecting the trunks
553-3021-209 Standard 3.00 April 2000
NT5K18 Exchange line trunk card terminations
Cross connect the NT5K18 Exchange line trunk card as shown in Table 70.
Note:
The connections on the NT5K18 Exchange line trunk card are
polarity sensitive. Make sure the ground side of the trunk is connected to
the A leg of the NT5K18 circuit. Make sure the -50 volt side of the trunk
is connected to the B leg of the NT5K18 circuit.
T6
R6
38
13
BK-G
G-BK
Unit 6
39
14
BK-BR
BR-BK
T7
R7
40
15
BK-S
S-BK
Unit 7
41
16
Y-BL
BL-Y
Table 70
NT5K18 Exchange line trunk card cross-connect terminations
Pair Pins Pair
color
Unit number
T0
R0
26
1
W-BL
BL-W
Unit 0
27
2
W-O
O-W
T1
R1
28
3
W-G
G-W
Unit 1
29
4
W-BR
BR-W
T2
R2
30
5
W-S
S-W
Unit 2
31
6
R-BL
BL-R
Table 69
NT5K17 DDI cross-connect terminations (Continued)
Pair Pins Pair color Unit number