DT-DBC4R
Riser Distributor
User Manual
DBC4R
IN-USE
POWER
Please read this manual carefully before using the product you purchase, and keep it well for
future use.We reserve the right to modify the specification in this manual at any time without
notice.
1. Description
The DBC4R is a 4 output video amplier.
• There are 2 working modes: riser mode and distributor mode;
• Separate isolation protection without affecting another devices on bus system;
• Short-circuit indication for convenient maintenance;
• Periodic self-detection mechanism for recovery.
2. Parts and Functions
ON
1
2
Impedance
switch
OFF
ON
DBC4R
IN-USE
POWER
DIP Switch
3
Output Output
BUS
IN-USE POWER
Status indicator
A
Standby: off not match: red
match: orangeDevice working: on
Power protection: slow ash
Device search mode: fast ash
Impedance Switch:
Bus:
Input port,bus connection port.
A,B,C,D:
Output port,connect to indoor monitors.
Video match switch.
B C D
Video match indicator
-3-
DIP Switch:
3 bit DIP switches,about the DIP settings,see follows:
ON OFF
DIP1
DIP2
DIP3
Note:
• Operation mode: Protection mode will be activated once its connected devices are
short circuited, and power supply for ABCD outputs will be turn off, the ashing in-
use indicator shows the distributor is in the protection mode.
• Self-detection: System will auto check whether the short circuit is xed or not, then
recover the power supply, and in-user indication will be turn off;
• Detection period: Self-detection will be happened regularly according rules, and in-
use indicator will ash rapidly three times when check happens;
1st detection will be happened in 10 seconds after short circuit;
2nd detection will be happened in 60 seconds after 1st detection;
3rd detection will be happened in 5 minutes after 2nd detection;
4th detection will be happened in 10 minutes after 3rd detection;
5th hereafter detection will be happened every 30 minutes;
the unit work in riser mode
the unit start to search the
local monitors (for monitors
with built-in power)
Gain High Gain Auto
the unit work in distributor mode
the unit stop to search the
monitors (in normal use)
3. Unit Mounting
DBC4R
DIN Rail Mounting
-4-
4. System Wiring with DBC4R
A B C
1.Basic IN-OUT expansion wiring(distributor mode)
Cable Usage A B C
2x 0.00116 sq.in 196ft 196ft 98ft
2x 0.00155 sq.in 262ft 262ft 131ft
DR-30-24 DPS
4R
DBC4R
4R
Wiring diagram:
-
+
DPSDR-30-24
DBC4R
A B C D
DBC4R
ON
1
2
3
DIP1->OFF
* Max.8 monitors can be connected for every DBC4R.
Max.4
-5-
2.Multi risers wiring(riser mode)
Cable Usage A B C
2x 0.00116 sq.in 196ft 196ft 98ft
2x 0.00155 sq.in 262ft 262ft 131ft
Type 1
Max.8
4R
4A
4R
DBC4R
4A
4R
C
4A
4R
DR-30-24 DPS
1 2 3
654
7 8 9
#0
*
4R
Max.4 risers
A B
4A
4R
-6-
Wiring diagram:
Type 2
DBC4R
A B C D
DBC4R
A B C D
DBC4R
to next branch distributor to next branch distributor
Max.4 risers
-
DBC4R
+
DPSDR-30-24
A B C D
ON
1
2
3
DIP1->ON
1 2 3
654
7 8 9
#0
*
4A
4R
4A
4R
4R
C
4A
4R
4A
4R
DR-30-24 DPS
1 2 3
654
7 8 9
#0
*
4R
A B
4R
to next DBC4R
-7-
Wiring diagram:
A B C D
DBC4R
to next branch distributor
DBC4R
A B C D
DBC4R
A B C D
ON
1
2
3
DIP1->ON
to next DBC4R
* The DIP1 should set to “ON” for all DBC4R.
A B C D
DBC4R
to next branch distributor
-
+
DPSDR-30-24
1 2 3
654
7 8 9
#0
*
-8-
3.Multi monitors wiring(distributor mode)
4R
4R
4R
Wiring diagram:
* The impedance switch
should set to “ON” for
the last DBC4R at the
end of the bus.
DBC4R
DBC4R
+
1
2
3
DIP1->OFF
A B C D
A B C D
1
2
3
DIP1->OFF
-
DR-30-24 DPS
ON
ON
4R
DBC4R
1 2 3
654
7 8 9
#0
*
OFF ON
Impedance
switch->ON
OFF ON
Impedance
switch->OFF
DPSDR-30-24
1 2 3
7 8 9
*
654
#0
-9-
-10-
-11-
5. Specification
Power Supply : DC20~30V
Working Temperature: -100C~+400C
Wiring: 2 wires (non-polarity)
Dimension: 3.50(H) x 2.80(W) x 1.77(D) inch
Standby Current: 4~5mA
The design and specications can be changed without notice to the user. Right to interpret and
copyright of this manual are preserved.
DT-ENG-DBC4R-V1 20180717
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