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NWA-008841-001 Rev.5.0
90ch3003.fm
NOTE 3:
Set SW-1 and SW-2 as follows:
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.
NOTE 6:
Mount the CCT card which receives a source clock signal into PIM0.
CONDITIONS
CCT0
CCT1
CCT2
· · · · ·
CCT7
REMARKS
SW
-1
SW
-2
SW
-1
SW
-2
SW
-1
SW
-2
SW
-1
SW
-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
provided.
ON OFF OFF ON OFF OFF
OFF OFF
MP card will receive the
clock signal from CCT0
at its PLO0 input, under
normal conditions.
Should a clock failure
occurs with CCT0, MP
card will automatically
switch to the PLO1 input
which gets clock from
CCT1.
1
1
48 Kbps
Data
• SW1-3: OFF
1
1
48 Kbps
• SW1-3: ON
Data
PN-30CCTA (CCT)