363-206-285 Detailed Level Procedure: DLP-523
Issue 2, February 2000 Page 14 of 30
DDM-2000 OC-3 MULTIPLEXER
14. If the BBF2B/BBF2C TGS or BBF4 TG3 is provisioned for
sync out mode
,
refer to Table G and Figure 2 and set equalizer switches for the proper cable
length.
15.
NOTE:
Switches S1-1 and S1-2 were ignored by the system the first time the
TGS/TG3 was installed unless the timing mode was set to
DS1 External
or
Line Timed sync out mode
. Subsequent removal or replacement of the
TGS/TG3 requires that switches S1-1 and S1-2 be set the same as the
original settings or an update upd must be performed.
Is timing mode set to either
DS1 External
or
Line Timed sync out
?
If YES, then continue with Step 16.
If NO, then proceed to Step 17.
Table G – Equalizer Switch Settings
Equalization S2-1 S2-2 S2-3
0’ to 131’ ON ON OFF
>131’ to 262’ ON OFF ON
>262’ to 393’ ON OFF OFF
>393’ to 524’ OFF ON ON
>524’ to 655’ OFF ON OFF
Invalid
*
* If an invalid setting is selected, FAULT LED is
lighted and an alarm is generated
(unexpected CP type or
unexpected CP switches).
OFF OFF OFF
Invalid* OFF OFF ON
Invalid* ON ON ON
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