Lighting Controls Blue Box LT Series Installation, Operation & Maintenance Manual page 126

126 THE BLUE BOX LT DIGITAL INPUT CARD INSTALLATION GUIDE
MOUNTING INSTRUCTIONS
6
1
3
4
INPUT X
Gnd
3.3V
24V
INPUT X
2
5 4
3
Momentary Switch
SPST Switch
MOUNTING/INSTALLATION
If your DI Card is already installed in the Bue Box LT, skip
this section and proceed to "Connecting Inputs" on the
next page .
To add the DI Card to any Blue Box LT panel:
a) De-power the Master Panel (the relays in that pan-
el will automatically close) .
b) If not already done, de-power the panel you are
adding the DI Card to (the relays in that panel will
close) .
c) Snap the DI Card into the snap track above the
control card in The Blue Box LT .
d) Connect the board-to-board cable to the control
card .
e) Address the new DI Card, per the addressing steps
on the back of this Installation Guide .
f) Once the addressing stepts are complete, make-up
the contact closure connections (next page) .
CALLOUT LEGEND:
For a complete parts list refer to The Blue Box LT
O&M Manual .
1 . Board-to-board ribbon cable provides power
and digital signal to the DI Card .
2 . DI Card snaps into existing snap track on The
Blue Box LT panel .
3 . 6 or 14 programmable contact closure inputs
(DI-14 shown) . Each input is numbered .
4 . Ground input . Use only the on-board Ground
as common . Do not use Earth Ground!
5 . 3V output supplies power to LED pilot lights
(LC&D contact closure switches only) .
6 . 24 V output (500 mA) for occupant sensors .