Spec Sheet

The copyright will be reserved to make any modications without notice.The copyright will be reserved to make any modications without notice. version: 2015.10
DT Accessories
DT-DBC4A1
PARTS AND FUNCTIONS SPECIFICATION
Power supply: DC20~30V
Temperature: -10
0
C~+40
0
C
Wiring: 2 wires (non-polarity)
Dimension: 89*70*45mm
IN-USE: Status indicator,it will light up when
receives signal.
POWER: Working indicator,it will light up when
plugs in power supply.
Impedance Switch: Video match switch,the
last DBC4A1 at the end of the bus should set
ON to match the video impedance,the power
indicator will turn to orange after setting.
Bus: Input port,bus connection port.
A,B,C,D: Output port,connect to indoor moni-
tors or door stations.
POWER
IN-USE
BUS
A
Output Output
B C D
OFF
Impedance
switch
ON
DT-DBC4A1
4 Branch Controller
OUTPUT
Impedance
Switch
OFF
A B C D
BUS
POWER IN-USE
BUS
RISER
ON
2-WIRE SYSTEM