Nortel Networks Circuit Card 311 User Manual
Page 789
Configuration
789
Table 305
E and M Trunk card - jumper strap settings
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
E—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 four 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 is greater than 2500
ohms.
Software service entries
The trunk type is selected by making service change entries in Route Data
Block, Automatic Trunk Maintenance (LD 16). The companding mode is
selected by making service change entries in Trunk Data Block (LD 14).
Refer to
Table 303 "E and M Trunk card - jumper strap settings" (page
to select the proper values for the trunk type being employed.
The trunk type is selected by making service change entries in the Trunk
Route Administration Program LD 16. The companding mode is selected by
making service change entries in the Trunk Administration Program LD 14.
Refer to
Table 304 "E and M Trunk card - jumper strap settings" (page
to select the proper values for the trunk type being employed.
Refer to Meridian 1 Software Input/Output Reference — Administration
(NN43001-611) for LD 14 and LD 16 service change instructions.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.