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NetSure™ 5100 Series -48 VDC Power System User Manual (UM582137200)
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Rev. G
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5.
Carefully label the connectors plugged into the circuit card. These connectors must be plugged into the
same connectors on the replacement circuit card.
DANGER!
In the next step, external alarm wiring may be energized from an external source. DO NOT
allow bare wire ends to contact any grounded or energized object.
6.
Remove the external wiring from the customer connection terminal blocks. DO NOT allow the bare wire
end to contact any grounded or energized object. Isolate the wire end with electrical tape. Repeat for
each wire to be removed.
7.
Unplug all connectors plugged into the circuit card.
8.
Remove the circuit card from the distribution unit by removing the screws securing it to the slide out
tray.
9.
In this step, ensure you do not intermix the old and replacement circuit cards. Set the switch on the
replacement circuit card to the same setting as the old circuit card. Switch settings are documented in
the “Setting Jumper and Switch Options” section of the Power System Installation Instructions
(IM582137200).
10.
Orient the replacement circuit card over its mounting position, and secure with the screws removed
from the old circuit card.
11.
Plug all connectors removed from the old circuit card into the same position on the replacement circuit
card.
DANGER!
In the next step, external alarm wiring may be energized from an external source. DO NOT
allow bare wire ends to contact any grounded or energized object.
12.
Reconnect the external wiring to the correct terminals on the customer connection terminal block. First
remove the electrical tape that was applied to the bare wire end in a previous step. DO NOT allow the
bare wire end to contact any grounded or energized object. After securing the wire, gently tug on the
wire to ensure that it cannot be pulled out of the terminal block. Repeat for each wire to be
reconnected.
13.
Reinstall the slide out tray and secure by tightening the screw.
14.
Remove the grounding wrist strap.
15.
Enable the external alarms, or notify appropriate personnel that this procedure is finished.
16.
Ensure that there are no local or remote alarms active on the system.
Replacing the IB4 Board (if furnished)
Procedure
NOTE!
Refer to
as this procedure is performed.
1.
Performing this procedure may activate external alarms. Do one of the following. If possible, disable
these alarms. If these alarms cannot be easily disabled, notify the appropriate personnel to disregard
any future alarms associated with this system while the procedure is being performed.