Nortel Circuit Card 311 Reference page 344

344 NT5D97 Dual-port DTI2 PRI2 card
Table 147
Trunk interface impedance switch settings
Description
75 ohm
120 ohm
Ring ground switches for NT5D97AA/AB
A set of four Dip switches (S2) selects which Ring lines are connected to
ground. Refer to
Table 148
Ring ground switch settings
Switch
DCH Address select switch for NTBK51AA daughterboard for
NT5D97AA/AB
In case of an on-board NTBK51AA D-channel daughterboard, set of four
switches (S3) provide the daughterboard address. Refer to
1 switches" (page
Table 149
DCH mode and address switch settings
Swit
ch
1-4
5-8
Copyright © 2003-2008, Nortel Networks
.
OFF
OFF
Table 148 "Ring ground switch settings" (page
Description
1 Trunk 0 Transit
2
Trunk 0 Receive
3 Trunk 1 Transmit
4 Trunk 1 Receive
349).
Note: Switch 8 of S3 (S3-8) does not require a switch setting to select
between the on-board NTBK51AA D-channel daughterboard and
an external DCHI/MSDL. The NT5D97 detects when the on-board
NTBK51AA D-channel daughterboard is used.
Description
D-channel daughterboard address
For future use
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
S8/S14 switch setting
OFF ON
OFF OFF
S2 switch settingS
OFF-Ring line is not grounded
ON- Ring line is grounded
OFF-Ring line is not grounded
ON- Ring line is grounded
OFF-Ring line is not grounded
ON- Ring line is grounded
OFF-Ring line is not grounded
ON- Ring line is grounded
S3 switch setting
See
"NTBK51AA
daughterboard
address select switch
settings" (page 345)
OFF
OFF
ON
344).
Table 156 "Trunk
Table 150