ā 358 ā NWA-008841-001 Rev.5.0
90ch3003.fm
NOTE 1: Set the groove on the switch to the desired position.
NOTE 2: When the power is on, flip the MB switch to ON (UP position) before plugging/unplugging the
circuit card.
NOTE 3: The system can receive clock signals from two clock supply routes.
In normal condition, the system synchronizes to the clock signals supplied on the PLO0 of MP
card via the Back Wiring Board, and if the clock signals are failed, the clock supply route takes
over to PLO1 automatically. Set SW4-1 to SW4-5 as follows.
NOTE 4: Mount the BRT card which receives a source clock signals into PIM0.
CONDITIONS SWITCH BRT0 BRT1 BRT2 ---- BRT23
When one BRT is
provided.
SW4-1 ON
SW4-2 OFF
SW4-3 OFF
SW4-4 OFF
SW4-5 ON
When more than
one BRT is pro-
vided.
SW4-1 ON ON OFF
----
OFF
SW4-2 OFF OFF OFF OFF
SW4-3 OFF OFF OFF OFF
SW4-4 OFF OFF OFF OFF
SW4-5 ON OFF OFF OFF
PN-4BRTA-A (BRT)
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