Computer Hardware Installation Guide

Functional description 349
Table 156
Trunk 1 switches
Switch
Function
S7 General Purpose...See Table 152 "General purpose
switches for NT5D97AD" (page 348)
S10
TX Mode...See Table 153 "TX mode switches for
NT5D97AD" (page 348)
S13, S14 & S15 LBO...See Table 154 "LBO switches for NT5D97AD"
(page 348)
S11
RX Impedance...See Table 155 "Receiver interface
switches for NT5D97AD" (page 348)
Ring ground switches for NT5D97AD Switch S16 selects which r ing
lines connect to ground. When set to ON, the ring line is grounded.
Table 157
Ring ground switch for NT5D97AD
Switch
Line
S16_1 Trunk 0 Transmit
S16_2 Trunk 0 Receive
S16_3 Trunk 1 Transmit
S16_4 Trunk 1 Receive
DCH Address select switch for NTBK51AA daughterboard for NT5D97AD
Switch S9 selects the NTBK51AA DCH daughter card address.
Switch S8 is not used when the NTBK51AA daughter card is used. S8_1-10
can be set to OFF position.
Table 158
NTBK51AA DCH switches for NT5D97AD
Switch number
Function
S9_1-4 DCH daughter card address
S9_5-8 Set to OFF
S9_9 Set to ON (NTBK51AA Mode)
S9_10 Set to ON (NTBK51AA Mode)
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
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