Table 142 – Nortel Networks 1000 User Manual
Page 343
Functional description
343
Table 138
General purpose switches for NT5D97AD
Switch
Description
S9/S15 Switch Setting
S12_1
Impedance level
OFF - 120 ohm
ON - 75 ohm
S12_2
Spare
X
S12_3
Spare
X
S12_4
Unit mode
OFF - Unit operates in the DTI2 mode
ON - Unit operates in the PRI2 mode
Switch S2 selects the Transmission mode.
Table 139
TX mode switches for NT5D97AD
TX mode
S2
E1
OFF
Not used
ON
Switch S3, S4, and S5 select LBO function.
Table 140
LBO switches for NT5D97AD
LBO setting
S3
S4
S5
0dB
OFF
OFF
OFF
7.5dB
ON
ON
OFF
15dB
ON
OFF
ON
Switch S6 selects the Receiver interface.
Table 141
Receiver interface switches for NT5D97AD
Impedance
S6-1
S6-2
S6-3
S6-4
75 ohm
OFF
OFF
ON
OFF
120 ohm
OFF
OFF
OFF
ON
Table 142
Trunk 1 switches
Switch
Function
S7
General Purpose...See
switches for NT5D97AD" (page 343)
S10
TX Mode...See
Table 139 "TX mode switches for
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.