– 420 – NWA-008841-001 Rev.5.0
90ch3003.fm
NOTE 4: When the PBX is a clock source office, set the SW2-1 and SW2-2 on all the CCT/DTI/PRT cards
mounted in PIM0 to “OFF”.
NOTE 5: Set SW2-1 and SW2-2 as follows:
NOTE 6: Mount the CCT/DTI/PRT card which receives a source clock signal into PIM0.
NOTE 7: This card must be reset after the SW2-3 to SW2-7 switch settings. Set the MB switch to UP and
then DOWN.
NOTE 8: This switch setting is required when providing A-law/u-law conversion for CCT/DTI/PRT in
Taiwan. And for PRT, A-law/u-law setting by CMAAY=17 is required in addition to the switch
setting (Setting SW3-3 to ON).
NOTE 9: To provide A-law/u-law conversion for CCT/DTI/PRT, the following firmware program and
MP program are required.
NOTE 10: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.
CONDITIONS
CCT/DTI/PRT0 CCT/DTI/PRT1 CCT/DTI/PRT2
· · · · ·
CCT/DTI/PRT7
REMARKS
SW
2-1
SW
2-2
SW
2-1
SW
2-2
SW
2-1
SW
2-2
SW
2-1
SW
2-2
When one CCT/DTI/
PRT is provided.
ON OFF – – – – – –
MP card will receive the clock
signal from CCT/DTI/PRT0 at
its PLO0 input.
When more than one
CCT/DTI/PRT is
provided.
ON OFF OFF ON OFF OFF OFF OFF
MP card will receive the clock
signal from CCT/DTI/PRT0 at
its PLO0 input, under normal
conditions.
Should a clock failure occurs
with CCT/DTI/PRT0, MP card
will automatically switch to the
PLO1 input which gets clock
from CCT/DTI/PRT1.
Firmware program MP program
CCT SC-3729 IPS CCHDA PROG-B1 or later No limitation
DTI SC-3712 IPS PRTDA PROG-B1 or later No limitation
PRT (PRI) SC-3712 IPS PRTDA PROG-B1 or later Series 3900 or later
PRT (Q-SIG) SC-3728 IPS PRTDB PROG-B1 or later No limitaion
1 1
48 Kbps (1)
Data
• SW3-6: ON
1 1
48 Kbps (2)
• SW3-6: OFF
Data
JULY/15/2007
PN-DTB (CCT/DTI/PRT)
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