Latest News:
New 3 port RS 232 / 485 Buffered Hub allows two masters to access one slave ( Protocol Independent ) !
Economical RS-485 to dual port Fiber Optic Converter is now available !
RDC's single to multi-mode Fiber Optic Converter now runs up to 20mbps !
Run full-duplex fiber optic ethernet on a single cable with our RDC EnetFOW

rdcRM - Isolated RS-485 Ring Master

- Allows existing Modbus devices to be connected in a Ring
- Detects location breakage in a Ring
- Works with rdcISM or standalone
- Wide input supply range
- Din Rail Mount
RS 485 | BAUD 115K | -40 C | +65 C
(Allows a standard Modbus network to run in a Ring configuration)
  Ring Port 1 Ring Port 2 Master Port Status Port
Signal Type RS-485 (2-wire)
Signals Isolated T+, T- Signal Ground
Isolation 1kv optical/galvanic (Master and Status ports share the same ground)
Speed 9600 - 115K baud
Distance Typical=1 km Max=2 km
Operating Temp -40 to +65 DegC (-40 to 150 DegF)
Mounting DIN Rail Mount (3 styles)
CE Mark Status Pending
rdcRM dv 4p c
  dv Input Power: 9 to 36 Vdc
  4p 1 KV isolation between all ports except between Master and Status port
  c 5 x 3-way screw terminal for all ports
Part Number
Description
 Stock
rdcRM-dv-4p-c
Isolated 4-way RS-485 Ring Master, DIN-Rail Mount, 9 - 36 Vdc Supply, Full 4-of-4 Ground Isolation, all ports with 3-way screw terminal. Normal Mode only.
Yes
- Datasheet
- Manual (Coming Soon)
- Configuration Program (Coming Soon)
- Application Note AN34 : The RDC Modbus Ring Solution (Coming Soon)
Models:

+
-