Poseidon2
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RJ11
– 1-Wire bus
Digital bus from company Dallas Semiconductor, each sensor has its
own unique ID.
We recommend to keep the total wiring length under
60m
, although
functionality has been achieved over tens to hundreds of meters in
experimental settings.
If the wiring connected to one connector of the Poseidon2 unit is longer
than approximately 60m, we
cannot guarantee error-free operation
,
as it greatly depends on the actual wiring implementation, topology and
environment.
Active / Passive 1W port
Active is
RJ11 connector on a Poseidon2 device. Full max length
and power supply is guaranteed for all 1-Wire UNI/1-Wire sensors.
If you move a connected sensor from one active port to another, the
sensor will be shown as disconnected. After connecting, run sensor
autodetection again.
Passive port is
an RJ11 connector on T-Hub or an RJ11 connector
on a sensor (for daisy-chaining). Cannot guarantee full length and
power supply for following sensors. Power supply issues can be
resolved by using 1-Wire hub Power.
1-Wire UNI (RJ11)
1-Wire
UNI
is a software extension of 1-Wire bus.
1-Wire UNI sensors
:
o
Illumination sensor
o
Sensor 4-20mA
o
Sensor 0-60V (-48V DC)
o
Sensor 0-30A AC
o
>> More sensors
Maximum wiring length:
60 meters total length per each active RJ11 port
Note
: Length can be limited by some 1-Wire UNI sensors or by using more RJ11 male-female
connectors.
Power to sensors:
5V/20 mA from RJ11 connectors (can be boosted by "
1-
Wire hub Power
")
Other parameters are identical with 1-Wire
RJ11
1
-
Not used
2
Data
Transmit Data
3
GND
Ground
4
+5V
Power
