Equipment Start-Up And Shut-Down - NEC PASOLINK Training Course

ROI-S04488

3.3 Equipment Start-up and Shut-down

3.3.1 Start-up
IDU for 1+0 System
IDU for 1+1 System
Procedure for equipment start-up and shut-down are described below.
Test Equipment and Accessories Required
• Agilent 34401A Digital Multimeter (or equivalent) with Test Leads
Step
Check that the LINE IN voltage is between +20 V to +60 V/
1
−20 V to −60 V with the digital multimeter, before connecting
the power connector to the IDU,
Note: The range of DC power input depends on system
requirement.
2 Turn on the POWER switch on the IDU (refer to Fig. 3-5),
Note: In 1+ 1 system,
When neither No.1 nor No.2 channel is working, first set
the OPR SEL No.1-No.2 switch on the IDU to neutral
position or No.1 or No.2 to be powered up side.
When either No.1 or No.2 channel is working, set the
OPR SEL No.1-No.2 switch on the IDU to the working
channel side, then, turn on the power switch of the not
working channel.
3 Allow equipment to warm up for at least 30 minutes.
EOW
NMS LAN
FUSE (7.5A)
NMS/RA LA PORT
FUSE (7.5A)
LA PORT
EOW
MS LAN
DSC/ASC NMS/RA LA PORT
FUSE (7.5A)
LA PORT
Fig. 3-5 Front View of the IDU for Powering Up
Procedure
Power Switch
PASOLINK
LINE IN Connector
CALL
ODU IDU
PWR
RESET
MAINT
−
+
SELV
No.1 Power Switch
PASOLINK
LINE IN Connector
RESET PWR ODU IDU
MAINT
−
+
OPR SEL No.1 - No.2 Switch
SELV
PASOLINK
CALL
RESET
OPR ALM
OPR
SEL
TX RX TX RX
No.1
1
−
No.2 Power Switch
2
No.2
PASOLINK LINE IN Connector
RESET PWR ODU IDU
MAINT
−
+
SELV
OPERATION
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