Power
Switch
Red Lead
Black Lead
F1
F2
F3
F4
INPUT
1P
1N
2P
2N
3P
3N
4P
4N
LED
NP
1P
, 2P
, 3P
, 4P = FUSED OUTPUTS
1N, 2N, 3N, 4N = COMMON OUTPUTS
S
MAIN FUSE
Transformer
underneath
power supply
board
ALTV244220series
- 5 -
ALTV244300220
Transformer
underneath
power supply
board
Power
Switch
F1
F2
F3
F4
INPUT
1P
1N
2P
2N
3P
3N
4P
4N
LED
NP
1P
, 2P
, 3P
, 4P = FUSED OUTPUTS
1N, 2N, 3N, 4N = COMMON OUTPUTS
S
MAIN FUSE
Red Lead
Black Lead
ALTV244300CB220
N
P
S
N
P
S
24VAC
Output
(Yellow)
(Black)
(Black)
(Yellow)
28VAC
Output
Voltage Selection
Configuration
Fig. 3
Fig. 4
