NEC UNIVERGE NEAX 2000 IPS, System Manual

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NWA-008853-001 Rev.3.0
97ch4001.fm
NOTE 2:
When the power is on, flip the MB switch to ON (UP position) before plugging/unplugging the
circuit card.
NOTE 3:
Set SW0-1 and SW0-2 as follows:
NOTE 4:
When the PBX is a clock source office, set the SW0-1 and SW0-2 on all the CCT cards mounted
in PIM0 to “OFF”.
NOTE 5:
Mount the CCT card which receives a source clock signal into PIM0.
NOTE 6:
The following two kinds of rate adaptation method are available in 48 Kbps data transmission.
The rate adaptation method must be set to match the rate adaptation of clock source office.
NOTE 7: This card must be reset after the SW0-3 to SW0-7 switch settings. Set the MB switch to UP and
then DOWN.
CONDITIONS
CCT0 CCT1 CCT2 · · · · · CCT7
REMARKS
SW
0-1
SW
0-2
SW
0-1
SW
0-2
SW
0-1
SW
0-2
SW
0-1
SW
0-2
When one CCT is
provided.
ON OFF – – – – – –
MP card will receive the
clock signal from CCT0 at
its PLO0 input.
When more than
one CCT is pro-
vided.
ON OFF OFF ON OFF OFF OFF OFF
MP card will receive the
clock signal from CCT0 at
its PLO0 input, under nor-
mal conditions.
Should a clock failure occur
with CCT0, MP card will
automatically switch to the
PLO1 input which gets
clock from CCT1.
1 1
48 Kbps
Data
• SW2-3: OFF
1 1
48 Kbps
• SW2-3: ON
Data
JULY/01/2006
PN-24CCTA (CCT)