Nortel Networks Circuit Card User Manual
NT5D97 Dual-port DTI2/PRI2 card
Page 345 of 906
DCH Address select switch for NTBK51AA daughter board for
NT5D97AA/AB
NT5D97AA/AB
In case of an on-board NTBK51AA D-channel daughterboard, set of four
switches (S3) provide the daughterboard address. Refer to Table 134 on
switches (S3) provide the daughterboard address. Refer to Table 134 on
.
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.
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.
Table 128 shows the possible selection of the NTBK51AA D-channel.
3
Trunk 1 Transmit
OFF-Ring line is not grounded
ON- Ring line is grounded
ON- Ring line is grounded
4
Trunk 1 Receive
OFF-Ring line is not grounded
ON- Ring line is grounded
ON- Ring line is grounded
Table 127
DCH mode and address switch settings
DCH mode and address switch settings
Switch
Description
S3 switch setting
1-4
D-channel daughterboard address
5-8
For future use
OFF
Table 128
NTBK51AA daughterboard address select switch settings (Part 1 of 2)
NTBK51AA daughterboard address select switch settings (Part 1 of 2)
Device Address
Switch Setting
0
OFF
OFF
OFF
OFF
1
ON
OFF
OFF
OFF
Table 126
Ring ground switch settings (Part 2 of 2)
Ring ground switch settings (Part 2 of 2)
Switch
Description
S2 switch settingS