Talgil Computing and Control LTD RF-MODULE-45 사용자 설명서
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2. The
RF INTERFACE
– serves as a link between the RF MASTER and the host
controller. When possible, the RF INTEFACE will be placed inside the enclosure
of the host, otherwise it will have its own enclosure and then the interface will be
connected to the host by a shielded 4 wired cable that can be a few hundred
meters long. Similarly the communication to the RF MASTER uses also a
shielded 4 wired cable.
of the host, otherwise it will have its own enclosure and then the interface will be
connected to the host by a shielded 4 wired cable that can be a few hundred
meters long. Similarly the communication to the RF MASTER uses also a
shielded 4 wired cable.
REMARK: The Oasis RF system does not use an interface.
3. The
RF RTU
– The RF RTU is the edge unit in the field, that communicates by
radio with the Master, receiving and carrying out commands to open/close
outputs, and reports back the status of inputs.
A single RF channel can handle as many as 60 RTUs.
outputs, and reports back the status of inputs.
A single RF channel can handle as many as 60 RTUs.
There are 2 types of RTUs :
a) Modular
– the modular RTU may have up to 8 outputs (in steps of 2,4,6,8),
4 digital inputs and up to 4 analog inputs. The outputs activate 2 wired DC
pulse latching solenoids. The ability of reading digital inputs can be added to
any of the 60 RF RTU units however analog inputs are limited to the first 8
RTUs only.
pulse latching solenoids. The ability of reading digital inputs can be added to
any of the 60 RF RTU units however analog inputs are limited to the first 8
RTUs only.
b) Economical
– they come in two sizes – with 2 outputs and 2 digital inputs
(2/2), or with 1 output and 1 input (1/1).
The modular RTU consists of 2 parts: one is called the RF SLAVE and the other
is called the RF BASE. The 2 parts are connected by a shielded 4 wired cable
the length of which should not exceed 10 meters.
The RF interface
in a separate
enclosure
in a separate
enclosure
The RF interface
when located inside
the host enclosure
when located inside
the host enclosure