RS-485/422 Serial-Port Fiber Extension

Media Converters

RS485-CF-01, RS485-CF-02

USER’S GUIDE

The TRANSITION Networks RS485-CF-0x series serial-port fiber extension Media Converters extend distances between RS-485 or RS-482 nodes for up to two (2) kilometers over multimode fiber or up to twenty (20) kilometers over singlemode fiber.

RS485-CF-0x series Media Converters allow RS-485 two-wire half-duplex operation, RS-485 four-wire full-duplex operation, and RS-422 four-wire operation, with switch-selectable termination and biasing resistors, at speeds from 1 Kb/s to 500 Kb/s.

RS485-CF-0X in the NETWORK

The RS485-CF-0x can be used to install a fiber network extension between RS-485 or RS-422 network nodes.

RS-485/422 CABLE

RS485-CF-01

Provides one (1) terminal block RS- 485/RS-422 copper connector and one (1) set of RX (receive) and TX (transmit) ST 100BASE-FX connectors to multimode fiber @ 850 nM.

RS485-CF-01(SM)

Provides one (1) terminal block RS- 485/RS-422 copper connector and one (1) set of RX (receive) and TX (transmit) ST 100BASE-FX connectors to singlemode fiber @ 1300 nM.

RS485-CF-01(SC)

Provides one (1) terminal block RS- 485/RS-422 copper connector and one (1) set of RX (receive) and TX (transmit) SC 100BASE-FX connectors to multimode fiber @ 850 nM.

RS485-CF-02

Provides one (1) DB-9RS-485/RS-422 copper connector and one (1) set of RX (receive) and TX (transmit) ST 100BASE-FX connectors to multimode fiber @ 850 nM.

RS485/422 to Fiber Media Converter

DB-9

Fiber

RS485-CF-02(SM)

Provides one (1) DB-9RS-485/RS-422 copper connector and one (1) set of RX (receive) and TX (transmit) ST 100BASE-FX connectors to singlemode fiber @ 1300 nM.

RS485-CF-02(SC)

Provides one (1) DB-9RS-485/RS-422 copper connector and one (1) set of RX (receive) and TX (transmit) SC 100BASE-FX connectors to multimode fiber @ 850 nM.

RS485-CF-0x in the Network .

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Installation

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Operation

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Fault Isolation and Correction

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Cable Specifications

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Technical Specifications

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Compliance Information

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RS-485/422 CABLE

One slide switch on the RS485-CF-0x series Media Converter allows site selection of RS-485 2-wire (half-duplex) operation, RS-485 4-wire (full- duplex) operation, or RS-422 4-wire (full-duplex) operation (see page 3).

Asecond slide switch on the RS485-CF-0x series Media Converter allows echo prevention in two-wire mode or transmission only on "transmit/receive -

(B) RS-485 2wire, transmit - RS-422 and transmit/receive + (A) RS-485 2wire, transmit + RS-422" pair (see page 3).

A 4-position dip switch on the RS485-CF-0x series Media Converter allows site selection of 130 ohm terminator insertion on the "receive – RS485 4 wire, RS422 and receive + RS485 4 wire, RS422" pair or on the "transmit/receive - (B) RS485 2wire, transmit - RS422 and transmit/receive +

(A) RS485 2wire, transmit + RS422" pair (see page 3.).

The dip switch also allows site selection of 1K ohm pull down on "transmit/receive - (B) RS485 2wire, transmit - RS422" or of 1K ohm pull up on "transmit/receive + (A) RS485 2wire, transmit + RS422” (see page 3).

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RS485-CF-0x

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Milan Technology RS485-CF-0x specifications USER’S Guide