RS485/422 Multi-Drop Bus Fiber Optic Modem

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

Data

Data Formats

RS232,RS422,RS485

RS232 Data Rate

115.2kbps

RS422 / 485   Data Rate

512 kbps  or 1Mkbps

Bit Error Rate

<1 x 10-12

Connectors

Data

Screw Block Terminal

Fiber

ST, SC or FC (ST fitted as standard)

Environmental

Operating   Temperature

- 3 0 C--- +70 C

Storage Temperature

- 40 C--- +85 C

Operating   Humidity

0- 95%

MTBF

>100,000 Hours

Optical

Fiber

Multimode or singlemode

Wavelength

MM: 850nm, SM: 1310nm

Number of fibers

4 or 2

Power

Power Input

AC   220V  110v or  DC+110V   +5V   +12V   +24V   +48V Option

Mechanical

Dimensions

125(L)×110(W)×36(H )Wall Mount & DIN Rail

 Model Selection:

Model Number

Description

Fiber No.

Fiber Mode

Fiber Connector

HFB-FO-485-M4M

Multi point Link,4 Fiber, 2km

4

Multi Mode

ST/SC/FC

HFB-FO-485-M4S

Multi point Link,4 Fiber, 20km

4

Single Mode

ST/SC/FC