Installation Manual

Release 3.3, Revision A 1/99
BTS Field Maintenance 111
NOTE
☛
The T1 card dip switch is set according to DSX cable length or line build out. The
proper dip switch settings should have been identified during the initial system
installation and need only be replicated on the new T1card for replacement
purposes.
Table A2-1:
T1 dip switch settings
Port A
Switch Setting
1-2-3-4
Port B
Switch Setting
5-6-7-8
DSX-1 Cable Distance
Feet (Meters)
CSU Line
Build-Out
O-C-C-C O-C-C-C 0-133 (0- N/A
O-O-C-C O-O-C-C 133-266 N/A
O-C-O-C O-C-O-C 266-399 N/A
O-O-O-C O-O-O-C 399-533 N/A
O-C-C-O O-C-C-O 533-655 N/A
O-O-C-O O-O-C-O N/A 0dB
O-C-O-O O-C-O-O N/A -7.5dB
O-O-O-O O-O-O-O N/A -15dB
C-O-X-X C-O-X-X N/A -22.5dB
O = Open, C = Closed, X = Either