363-206-305 Detailed Level Procedure:
DLP-513
Issue 3, June 2000 Page 3 of 8
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
BBF1/BBF1B DS1/BBF3/BBF3B DS1PM
7. Determine from office records the length of the DS1 cabling between the
DDM-2000 and the DSX-1 cross-connect point.
8.
NOTE:
Switch 1, sections 1 through 3 (S1-1, S1-2, S1-3), are set according to
the length of DS1 cabling between the DDM-2000 and the DSX-1
cross-connection. Switch 1, sections 4 through 7 (S1-4, S1-5, S1-6,
S1-7), are set for the type of line coding (B8ZS or AMI) required of the
DS1 signal. Switch 1, section 8 (S1-8) is unused and ignored by the
system.
NOTE:
To set switch to ON, depress rocker or slide switch toward side labeled
ON in the figure. To set switch to OFF, depress rocker or slide switch
toward side labeled OFF in the figure.
Refer to Table B and Figure 2 and set LBO option switches.
Note:
Invalid switch settings will cause the
FAULT
LED to light and a
DS1 CP failed
alarm.
Table B – DS1/DS1PM Cable LBO Settings (Note)
613C (608C)
Cable Length
(feet)
1249C Cable
Length (feet)
Other Cable
dB Loss at
772 kHz
Switch S1 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
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