NT5D97 Dual-port DTI2/PRI2 card Page 345 of 906
Circuit Card Description and Installation
DCH Address select switch for NTBK51AA daughter board for 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
page 350.
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.
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
4 Trunk 1 Receive OFF-Ring line is not grounded
ON- Ring line is grounded
Table 127
DCH mode and address switch settings
Switch Description S3 switch setting
1-4 D-channel daughterboard address See Table128
5-8 For future use OFF
Table 128
NTBK51AA daughterboard address select switch settings (Part1 of 2)
Device Address Switch Setting
0OFF OFF OFF OFF
1ON OFF OFF OFF
Table 126
Ring ground switch settings (Part2 of 2)
Switch Description S2 switch settingS