
MICROSENS
MICROSENS GmbH & Co. KG - Kueferstr. 16 - D-59067 Hamm - Germany - Tel. +49 (0) 2381/9452-0 Fax -100 - www.microsens.com
RS-485
Transceiver
The fiber optic transceiver for
RS-485 interfaces.
The MICROSENS RS-485
transceiver offers the
transmission of RS-485 bus
signals over fiber.
In industrial field bus systems
the RS-485 interface has
established itself as a
transmission media. Especially
in industrial areas there are
often problems with electrical
cablings, because a lot of
machines produce electro
magnetical interference. Fi-
ber is completely immune
against electro magnetical
interfearance.
The distance of common
eletric cables is limited to a
few hundred meters. But the
use of fiber allows to connect
segments with a few
kilometer distances between
them.
The transceiver is compatible
to the different field bus
systems like Profibus, Bitbus,
Interbus-S and others.
Three LEDs inform about the
status of the transceiver and
the data connection.
Technical Specifications
Type Fiber optic transceiver for RS-
485 interface
Connectors 1 x SUB-D 9 pin
2 x ST-connector
1 x power supply jack 2.1 mm
Fiber type Multimode fiber, duplex, 50 or
62.5/125 µm, Single Mode
fiber 9/125 µm,
ST-connector
Max. fiber length MM: 2 km, SM: 5 km
LED displays Power, Receive, Transmit
Power supply Ext. supply
Dimensions 66 x 44 x 21 mm (w x d x h)
Order Information
Part-no. Description Connectors
MS650321 RS-485 Transceiver 1 x SUB-D 9 pin
Multimode 2 x ST
MS650322 RS-485 Transceiver 1 x SUB-D 9 pin
Single Mode 2 x ST
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