User's Manual

Page 270 of 332 Chapter 18 — Connecting the trunks
553-3021-209 Standard 3.00 April 2000
NT5K19 Analo
g
TIE line trunk card terminations
Cross connect the NT5K19 analog TIE line trunk card as shown in Table 71.
Note:
The speech pairs on the NT5K19 card are polarity insensitive. The
E&M signalling pairs, however, are polarity sensitive. Make sure the
ground side of the trunk is connected to the A leg of the NT5K19 circuit.
Make sure the -50 volt side of the trunk is connected to the B leg.
Table 71
NT5K19 2W paging mode terminations
Pair Pins Pair color Unit number
T0
R0
27
2
W-O
O-W
Unit 0
A
PG
29
4
W-BR
BR-W
T1
R1
31
6
R-BL
BL-R
Unit 1
A
PG
33
8
R-G
G-R
T2
R2
35
10
R-S
S-R
Unit 2
A
PG
37
12
BK-O
O-BK
T3
R3
39
14
BK-BR
BR-BK
Unit 3
A
PG
41
16
Y-BL
BL-Y