363-206-305
Circuit Pack Descriptions
Issue 3 June 2000
7-43
T1EXT Hardware Settings
7
The line coding and line build out (LBO) are switch settable. Other parameters are
provisionable through the software. The locations of the T1EXT circuit pack option
switches are shown in Figure 7-18 and Table 7-5 and Table 7-6.
Note
: The switches are set by moving the slide toward the desired position.
Figure 7-18. BBF6 T1EXT Option Switches
Table 7-5. T1EXT 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.
T1EXT 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 Set-
tings
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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