NEC NEAX 2000 IPS Installation Manual page 387

NOTE 3: Set SW-1 and SW-2 as follows:
CONDITIONS
SW
When one CCT is
provided.
When more than
one CCT is
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.
CCT0 CCT1
SW SW SW
-1 -2 -1 -2
ON OFF – –
ON OFF OFF ON OFF OFF
48 Kbps
1
Data
CCT2 · · · · ·
SW SW
-1 -2
– –
• SW1-3: ON
48 Kbps
1
Data
– 371 –
CCT7
REMARKS
SW SW
-1 -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
normal conditions.
Should a clock failure
OFF OFF
occurs with CCT0, MP
card will automatically
switch to the PLO1 input
which gets clock from
CCT1.
1
NWA-008841-001 Rev.5.0
PN-30CCTA (CCT)
90ch3003.fm