NEC NEAX 2000 IPS Installation Manual page 436

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:
CCT/DTI/PRT0 CCT/DTI/PRT1 CCT/DTI/PRT2
CONDITIONS
SW
2-1
When one CCT/DTI/
ON
PRT is provided.
When more than one
CCT/DTI/PRT is ON
provided.
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.
CCT
DTI
PRT (PRI)
PRT (Q-SIG) SC-3728 IPS PRTDB PROG-B1 or later
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.
• SW3-6: ON
1
SW SW SW SW
2-2 2-1 2-2 2-1
OFF – –
OFF OFF ON OFF OFF
Firmware program
SC-3729 IPS CCHDA PROG-B1 or later
SC-3712 IPS PRTDA PROG-B1 or later
SC-3712 IPS PRTDA PROG-B1 or later
48 Kbps (1)
1
Data
· · · · · CCT/DTI/PRT7
SW SW
2-2
– –
OFF OFF
• SW3-6: OFF
48 Kbps (2)
1
Data
– 420 –
PN-DTB (CCT/DTI/PRT)
REMARKS
SW
2-1 2-2
MP card will receive the clock
– – signal from CCT/DTI/PRT0 at
its PLO0 input.
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.
MP program
No limitation
No limitation
Series 3900 or later
No limitaion
1
NWA-008841-001 Rev.5.0
90ch3003.fm
JULY/15/2007