363-206-305
Circuit Pack Descriptions
Issue 3 June 2000
7-19
Note
: The switches are set by moving the slide toward the desired position.
Figure 7-8. BBF1B DS1 Option Switches
Table 7-1. DS1 Cable LBO Settings
Note: Distances specified are to the DSX-1 interconnect only. For direct
connection to DS1 terminating equipment, these distances can be doubled.
* Minimum of 30 feet required to meet EMI requirements. Unless specified, cables
with filtered connectors are used.
DS1 Cable LBO Settings (Note)
613C (608C)
Cable Length
to DSX-1
(feet)
1249C
Cable
Length to
DSX-1
(feet)
Other Cable
dB Loss to
DSX-1 at 772
KHz
DIP Switch
Settings
S1-1 S1-2 S1-3
0 to 133* 0 to 90* 0 to 0.6 OFF OFF OFF
>133 to 267 >90 to 180 >0.6 to 1.2 OFF OFF ON
>267 to 400 >180 to 270 >1.2 to 1.8 OFF ON OFF
>400 to 533 >270 to 360 >1.8 to 2.4 OFF ON ON
>533 to 655 >360 to 450 >2.4 to 2.8 ON OFF OFF
Connector
Edge
8765
Component Side
S1
OFF
ON
4321
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