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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
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Redundancy Supporting Device (Serial Hub)
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Redundancy is a common requirement nowadays. However, not all protocol standards allow for more than one master. For this reason, RDC has developed a range of 3 to 4 port devices or hubs to allow for more than one master to access multiple slaves. The ultimate form of redundancy is arbitration (rdc232arb) where all masters are transparent to each other.
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| USD $1 199.00 |  |
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 Read More... |
| USD $1 129.00 |  |
rdcISM - Isolated RS-485 Intelligent Segment Manager - Collects data from Modbus Slaves - Isolates faults to local segment - Works with rdcRM or standalone - Wide input supply range - Din Rail Mount Read More... |
| USD $999.00 |  |
rdc232Arb - Isolated 3 Way RS-232 Arbitrator - Isolates, repeats and arbitrates on RS-232 signals
- 3-port switching for communication between ports A & C or B & C - 3-wire operation (TX, RX, GND) for each port - Requires standard 8,N,1 byte format - Allows 2 masters to communicate with one slave via buffering of master ports Read More... |
| USD $709.00 |  |
rdc485fh – Customizable Serial to Single - Dual Port Fiber Optics Converter - Hub - Isolates and converts between optical and RS-485 signals
- 3-port device with up to two fiber ports and one RS-485 port - Intrinsic isolation at fiber sides - Various optical signal options (Multi-mode, Single-mode, WDM) - Protocol Independent - Hub Operation Read More... |
| USD $599.00 |  |
rdc485ih - Isolated Intelligent Hub RS-232 to Dual RS-485 - Isolates, repeats/converts and switches between RS-232 and RS-485 signals
- Various isolation options available - Protocol Independent - 3-port Master/Slave, Hub, or switch between ports A & C or B & C. - 3-wire operation (TX, RX, GND) for one RS-232 port - 2-wire operation (T+, T-, GND) for two RS-485 ports Read More... |
| USD $599.00 |  |
rdc232ih - Isolated RS-232 Auto Select Switch - Isolates, repeats and switches RS-232 signals
- Various isolation options available - Protocol Independent - 3-port switching for communication between ports A & C or B & C - 3-wire operation (TX, RX, GND) for each port except Port A (additional signal DSR) Read More... |
| USD $309.00 |  |
rdc232hub - Isolated RS-232 3-Way Hub - Isolates and repeats RS-232 signals
- Various isolation options available - Protocol Independent - 3-port Master/Slave or Hub operation - 3-wire operation (TX, RX, GND) for each port Read More... |