Nywint DT-BDU User manual

-1-
2. Terminal Description
DIP
IN
IN
OUT
DS
123456
ON
123456
ON
2-Wire System
Bus-IN Bus-OUT
Bus Amplifier
Model: BDU
Tx/Rx
PA PB
NoRoute Amp-ON
INDICATORS BUTTONS
In-Use
The BDU unit is bus amplier unit and networking component designed for DT
2-wire system. It has three work modes:Repeater mode, Router mode and
Gateway mode.
1.About DT-BDU Unit
Discription:
DIP Setting:
Bit-1 to Bit-2 are used to BDU working modes setting.
Bit-3 to Bit-5 are used to address settings.
Bit-6 is used to video Impendence match.
DT-ENG-BDU-V1 20160617
DT-BDU User Manual

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1 2 3 4 5 6
ON
Bit
Bit-1~Bit-2
Set to the Repeater mode.
Bit-6
Bit State Description
Set to the first DT-BDU.
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
Set to the Router mode.
Set to the Gateway mode.
Reserved.
Bit-3~Bit-5
1 2 3 4 5 6
ON
Set to the third DT-BDU.
Set to the second DT-BDU.
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
Set to the fourth DT-BDU.
1 2 3 4 5 6
ON
Set to the fifth DT-BDU.
1 2 3 4 5 6
ON
Set to the sixth DT-BDU.
1 2 3 4 5 6
ON
Set to the seventh DT-BDU.
1 2 3 4 5 6
ON
Set to the eighth DT-BDU.
1 2 3 4 5 6
ON
Used to video Impendence match, set to ON.
1 2 3 4 5 6
ON
The detail settings of DIP are as follows:
INDICATORS:
1.Bus-IN: Always on when connect to net.
2.Bus-OUT: Always on when connect to monitor.
3.Tx/Rx: Flashes when communicating.
4.In-Use: Always off when in standby mode.
BUTTONS:
1.PA, PA: Video Amplier Gain adjust.
2.NoRoute, Amp-ON: Debug button.

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P C6
B
Repeater Mode
P C6
BDT-BDU
3. Working Mode Wiring.
3.1 Repeater Mode (Line amplier):BDU can extend the distance of
DT system when works in repeater mode. As follows:
Max 140m from the rst door station to BDU
Max 140m from the last indoor monitor to BDU
Wiring diagram:
BUS(IM) BUS(DS)
PC6
AC~
BUS(IM) BUS(DS)
PC6
AC~
OUT DS
BDU
IN IN
1 2 3 4 5 6
ON

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3.2 Router Mode: In this mode, the system can connect up to 8
BDUs, and each BDU can connect up to 32 monitors.
BDT-BDU
P C 6
4 A
4 A
B P C 6
4 A
B P C 6
1 2 3
654
7 8 9
#0
*

-5-
Wiring diagram:
BUS(IM) BUS(DS)
PC6
AC~
1 2 3
654
7 8 9
#0
*
OUT DS
BDU
IN IN
OUT DS
BDU
IN IN
BUS(IM) BUS(DS)
PC6
AC~
A B C D
DBC4A
NEXT
DBC4A
NEXT
DBC4A
BUS(IM) BUS(DS)
PC6
AC~
A B C D
DBC4A
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON

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3.3 Gateway Mode: In this mode, the rst door station can call all
the monitors and can connect up to 8 BDUs, and each BDU can
connect up to 32 monitors.
B
DT-BDU
4 A
4 A
4 A
4 A
B
BPC6 PC6
1 2 3
654
7 8 9
#0
*
PC6
4A
DBC4A

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Wiring diagram:
BUS(IM) BUS(DS)
PC6
AC~
1 2 3
654
7 8 9
#0
*
OUT DS
BDU
IN IN
OUT DS
BDU
IN IN
BUS(IM) BUS(DS)
PC6
AC~
A B C D
DBC4A
NEXT
DBC4A
NEXT
DBC4A
BUS(IM) BUS(DS)
PC6
AC~
A B C D
DBC4A
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON

4. Specification
•Power Supply : DC24V;
•Power consumption: Standby 13.5mA; Working 156mA;
•Working Temperature: -150C~+550C;
•Wiring: 2 wire,non-polarity;
•Dimension: 90(H)×72(W)×60(D)mm.
The design and specications can be changed without notice to the user. Right to interpret
and copyright of this manual are preserved.