Nortel Networks 1000 - 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 Table 138 "General purpose
switches for NT5D97AD" (page 343)
S10 TX Mode...See Table 139 "TX mode switches for
NT5D97AD" (page 343)
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
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