NEC SV8500 Operation And Maintenance Manual - page 603
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CHAPTER 5
Operation Procedure for System with PIR
1.4
Replacement Procedure of IPPAD Circuit Card
[Start]
STEP 1
Make sure that the IPPAD to be replaced has no ongoing call.
•
Corresponding BL lamp will light green when a channel is in use.
Note:
The status of each channel can be known by changing SW01 setting. For more details, see “Circuit Card
Description.”
STEP 2
Turn ON (upward) MB key on the IPPAD card to be replaced.
•
OPE lamp turns OFF on the IPPAD card to be replaced.
Note:
BL0 - BL7 indicate Idle/Busy status of channels. By changing SW01, the status of all channels can be
monitored. For more details, see “Circuit Card Description.”
STEP 3
Disconnect the LAN cable from IP-LAN connector.
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
BL7
OPE
BL6
BL5
BL4
BL3
BL2
BL1
BL0
MB
BL7
OPE
BL6
BL5
BL4
BL3
BL2
BL1
BL0
MB
BL7
OPE
BL6
BL5
BL4
BL3
BL2
BL1
BL0
MB
STEP 1
STEP 2
Make sure BL lamp.
Two channels are in use!
Turn ON MB key.
No channel is in use.
SW01
SW01
SW01
Wait a while....
IP-LAN
IPPAD card
connected to
LAN cable
RJ45 connector
network device
such as switch, router