Nortel Meridian 1 option 11C Planning And Installation Manual page 276

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Cross connect the NT5K19 analog TIE line trunk card as shown in Table 62.
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 62
NT5K19 2W paging mode terminations
3DLU
73
53
$
3*
74
54
$
3*
75
55
$
3*
76
56
$
3*
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5: :02
5 20:
5< :0%5
7 %50:
64 50%/
9 %/05
66 50*
; *05
68 506
43 605
6: %.02
45 20%.
6< %.0%5
47 %50%.
74 <0%/
49 %/0<
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