Nortel Networks Circuit Card - Manual (Page 349)

NT5D97 Dual-port DTI2/PRI2 card Page 349 of 906
Circuit Card Description and Installation
Trunk interface switches for NT5D97AD
Trunk 0 switches
Switch S12 gives the MPU information about its environment.
Switch S2 selects the Transmission mode.
Switch S3, S4, and S5 select LBO function.
Table 130
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
Table 131
TX mode switches for NT5D97AD
TX mode S2
E1 OFF
Not used ON
Table 132
LBO switches for NT5D97AD
LBO setting S3 S4 S5
0dB OFF OFF OFF
7.5dB ON ON OFF
15dB ON OFF ON