The RS-485/422 Multi-Drop Bus Fiber Optic Modem series products provide an optical bus network for RS-232, RS-422 or RS-485 data interfaces over a pair of multimode or single mode optical Fibers. The Terminal module units operate as the end or terminal points and provide an electrical connection and a two fibre optical connection. The Repeater module units act as in-line repeater stations and provide a single electrical connection and two optical connections, one upstream and one downstream.
This series is available in either wall mount, DIN rail or 3U chassis card configurations.
Product Features
- Multi protocol data interface
- Switchable termination and biasing
- Multimode and singlemode
- Wall mount, DIN and 3U chassis card
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Data
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Data Formats
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RS232,RS422,RS485
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RS232 Data Rate
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115.2kbps
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RS422 / 485 Data Rate
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512 kbps or 1Mkbps
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Bit Error Rate
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<1 x 10-12
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Connectors
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Data
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Screw Block Terminal
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Fiber
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ST, SC or FC (ST fitted as standard)
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Environmental
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Operating Temperature
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- 3 0 C--- +70 C
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Storage Temperature
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- 40 C--- +85 C
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Operating Humidity
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0- 95%
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MTBF
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>100,000 Hours
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Optical
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Fiber
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Multimode or singlemode
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Wavelength
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MM: 850nm, SM: 1310nm
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Number of fibers
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4 or 2
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Power
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Power Input
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AC 220V 110v or DC+110V +5V +12V +24V +48V Option
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Mechanical
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Dimensions
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125(L)×110(W)×36(H )Wall Mount & DIN Rail
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Model Selection:
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Model Number
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Description
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Fiber No.
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Fiber Mode
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Fiber Connector
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HFB-FO-485-M4M
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Multi point Link,4 Fiber, 2km
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4
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Multi Mode
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ST/SC/FC
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HFB-FO-485-M4S
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Multi point Link,4 Fiber, 20km
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4
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Single Mode
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ST/SC/FC
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