Lighting Controls Blue Box LT Series Installation, Operation & Maintenance Manual page 49

THE BLUE BOX LT PARTS REPLACEMENT & INSTALLATION GUIDE
Refer to the Digital Input Card Installation Guide
section of the Blue Box LT "O&M Manual" for more
details .
DI CARD REPLACEMENT AND INSTALLATION
To remove a defective DI Card:
1 . Note the address of the existing DI Card . Refer to
the SYSTEM DEVICE SCHEDULE in the master
panel or by process of elimination - the READ
ADDRESS screen .
2 . De-power the Blue Box LT by switching off the
breaker feeding the power supply (the relays in
that panel will close) .
3 . Disconnect the power/data jumper cable from
the DI card (leave it connected to the control
card) .
4 . Remove all low voltage conductors for contact
closure devices from the input/output terminals .
5 . Pry the DI Card out of the plastic track by
applying a flat-blade screw driver to the slot on
the side of the card .
DI Card
Input/output
terminals
To replace a defective DI Card
6 . Snap the new DI card into the plastic track .
7 . Re-connect the power/data jumper cable to the
DI card .
8 . Reconnect all low voltage conductors for contact
closure devices to the input/output terminals .
9 . Re-power the Blue Box LT .
10 . If this is a master panel, the main screen will
be displayed for a few seconds, after which the
"device detection" screen will be displayed . DO
NOT ASSIGN THIS DEVICE A NEW ADDRESS!
TAB to NO and ENTER
11 . When the screen prompts: "Are you sure?" TAB
to YES and ENTER .
12 . After the defective part replacement installation
is complete, return the part using the prepaid
USP return label and envelope to LC&D .
[Note: If the defective part is not returned within a
30-day period, your account will be automatically billed
for the part. ]
To address the replacement DI Card
13 . Navigate to the AUTO-ADDRESSING screen:
USER MENU> SETUP MENU> RESTRICTED
(PASSCODE: 900001) > ADDRESSING-BUS
SCAN > AUTO ADDRESSING .
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DI Card
Input/output
terminals
Power