NEC NEAX 2000 IPS Installation Manual page 374

Internet protocol server installation procedure manual
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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.
CONDITIONS
When one BRT is
provided.
When more than
one BRT is pro-
vided.
NOTE 4:
Mount the BRT card which receives a source clock signals into PIM0.
SWITCH
BRT0
SW4-1
ON
SW4-2
OFF
SW4-3
OFF
SW4-4
OFF
SW4-5
ON
SW4-1
ON
SW4-2
OFF
SW4-3
OFF
SW4-4
OFF
SW4-5
ON
BRT1
ON
OFF
OFF
OFF
OFF
– 358 –
PN-4BRTA-A (BRT)
BRT2
----
OFF
OFF
OFF
----
OFF
OFF
NWA-008841-001 Rev.5.0
BRT23
OFF
OFF
OFF
OFF
OFF
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