Nt8d15 e and m trunk card, Table 35 nt8d15 e and m trunk card – Nortel Networks Circuit Card 311 User Manual
Page 95
NT8D15 E and M Trunk card
95
Table 34
NT8D14 vintages BA/BB cable loop resistance and loss
Cable loop resistance (ohms)
Cable loop loss (dB)
(non-loaded at 1kHz)
Cable length
22 AWG
24 AWG
26 AWG
22 AWG
24 AWG
26 AWG
915 m (3000 ft)
97
155
251
0.9
1.2
1.5
1524 m (5000 ft)
162
260
417
1.6
2.0
2.5
2225 m (7300 ft)
236
378
609
2.3
3.0
3.7
3566 m (11700 ft)
379
607
977
3.7
4.8
6.0
5639 m (18500 ft)
600
960
1544
5.9
7.6
9.4
NT8D15 E and M Trunk card
Table 35
NT8D15 E and M Trunk card
Mode of operation (Note 2)
2-wire trunk
4-wire trunk
DX tip & ring pair
Jumper
(Note 1)
Type I
Paging
Type I
Type II
M—rcv
M—xmt
E—rcv
M—xmt
J1.X
off
off
off
off
Pins 1–2
Pins 2–3
J2.X
on
on
(Note 3)
on
on
off
off
J3.X
off
off
off
off
(Note 4)
(Note 4)
J4.X
off
off
off
off
Pins 2–3
Pins 1–2
J5.X
off
off
off
off
(Note 4)
(Note 4)
J6.X
off
off
off
off
on
on
J7.X
off
off
off
off
on
on
J8.X
off
off
off
off
on
on
J9.X
Pins 2–3
Pins 2–3
Pins 2–3
Pins 2–3
Pins 1–2
Pins 1–2
Note: Jumper strap settings J1.X through J9.X apply to all 4 units; "X" indicates the unit number,
0–3.
Note: Off indicates that no jumper strap is installed on a jumper block.
Note: Paging trunk mode is not zone selectable.
Note: Jumper strap installed in this location only if external loop resistance exceeds 2500 ohms.
Note: Dot next to the jumper block indicates pin 1.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.