Daughterboards and Modules

6-24

ADAM-4541/4542

Fiber Optic to RS-232/

422/485 Converter

Introduction

Fiber optic transmission offers the benefits of wide bandwidth, immunity

to EMI/RFI interference, and secure data transmission. ADAM-4541/

ADAM-4542 can be used as an RS-232/422/485 point-to-point or point-

to-mutipoint connection for transmitting and converting full/half-duplex

signals and their equivalents within a fiber optic environment. Fiber optics

is the perfect solution for applications where the transmission medium

must be protected from electrical exposure, lightning, atmospheric

conditions or chemical corrosion.

The ADAM-4541/4542 is specifically designed to link various machinery

equipped with an RS-232/422/485 communication ports (such as

computer systems or manufacturing machines). Using standard ST

connectors, the module's fiber optic ports can accommodate a wide range

of fiber optic cable sizes, including 62.5/125 (9/125)

µm.

Advantages of Fiber Optics

All Dielectric

• Low signal radiation

• Secure transmission

• Lightning immunity

• High-voltage installation

Small Size

• Less duct space

• Fewer additional ducts installed

Low Attenuation

• Greater distance / fewer repeaters

• Less installation and maintenance

Optical Signals

• No ground loops

• No spark hazard

• Operation in flammable areas

High Bandwidth

• Future signal capacity expansion

Specifications

• Casing: ABS with captive mounting hardware

• Communication mode: Asynchronous

• Connector: Plug-in screw terminal

• Fiber port: ST

• Transmission mode: Full/half-duplex, bidirectional

• Transmission rate: Up to 115. 2 Kbps

• Operating temperature: -10 ~ 70° C (14 ~ 158° F)

• Operating humidity: 5 ~ 95% (non-condensing)

• Accessories (included): Nylon DIN-rail mounting adapter, SECC

panel mounting bracket

Ordering Information

❑ ADAM-4541: Mulit-Mode Fiber optic to RS-232/422/485

converter with mounting bracket

❑ ADAM-4542: Single-Mode Fiber optic to RS-232/422/485

converter with mounting bracket

Features

• Compact size economizes space

• Direct plug-and-play

• Easily mounted on a DIN-rail, panel or piggyback

• Transmission speeds of up to 115.2 Kbps

• Optical fibers enable transmission of 2.5 km for ADAM-4541

and 15 km for ADAM-4542

• Half/Full-duplex, bidirectional transmission mode

• Avoids lightning strikes and EMI/RFI interference

• Prevents damage from electrostatic discharge

• Stable and error-free data transmission

• Automatic internal RS-485 bus supervision

• No external flow control signals required for RS-485

• Transient suppression and over-current protection on RS-422/

485 data lines

• Reserved space for termination resistors

• LED for power and data flow indication

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