Lighting Controls Blue Box LT Series Installation, Operation & Maintenance Manual page 8

8
2
1 . Screw fastener secures hinged Control Panel
Door (Master only) .
2 . White door provides barrier between human
interface and line voltage connections beneath
(Master only) .
3 . Optional Modem . Free factory dial-up programming .
4 . Optional DI contact closure interface card .
5 . Ø1/4" mounting holes at 4 places .
6 . Optional: Unfasten two screws to remove chassis
assembly from enclosure providing full access to
mounting holes if required .
7 . SnapLink relays, Normally-Closed (NC) . Status
™
LED is ON when relay is OFF .
8 . DTC Clock / Display & Programming Interface:
1
3
8
5
GR1404/08 LT (WHITE DOOR OPEN)
THE BLUE BOX LT OVERVIEW
low voltage only
6
4
12
9
32-channel, 365-day astronomical clock with
Scroll and Tab to access control features for en-
tire system (Master only) .
9 . Voltage barrier separates line voltage (class 1) &
low (class 2) connections .
10 . Dual Voltage Power Supply Input: Blue Box LT
operates on either 120V or 277V .
11 . Ground Lug for equipment grounding .
12 . Relay Control Card provides interface between
control network and relays . The Relay Control
Card in the Master panel also holds time sched-
ules and system mapping .
line voltage only
5
7
11
10
5
™