NEC NEAX 2000 IPS System Manual page 394

NOTE 3: Set SW-1 and SW-2 as follows:
CCT0
CONDITIONS
SW
-1
When one CCT is
ON OFF
provided.
When more than
one CCT is ON OFF OFF ON OFF OFF
provided.
NOTE 4:
When the PBX is a clock source office, set the SW-1 and SW-2 on all the CCT cards mounted in
PIM0 to "OFF".
NOTE 5: 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.
• SW1-3: OFF
1
NOTE 6:
Mount the CCT card which receives a source clock signal into PIM0.
CCT1 CCT2
SW SW SW SW
-2 -1 -2 -1
– – –
48 Kbps
1
Data
· · · · ·
SW SW
-2 -1
–
OFF OFF
• SW1-3: ON
48 Kbps
1
Data
– 380 –
PN-30CCTA (CCT)
CCT7
REMARKS
SW
-2
MP card will receive the
– – clock signal from CCT0 at
its PLO0 input.
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
NWA-008853-001 Rev.3.0
97ch4001.fm
JULY/01/2006