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ST

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TUP MANUAL

1 Startup Manual

ADAM-4542+

Fiber Optic to RS-232/422/485 Converter

Packing List

Before you begin installing your module, please make sure 

that the following materials have been shipped:
1 x ADAM-4542+ Module with DIN-rail mounting 

bracket 
1 x ADAM-4542+ User Manual
1 x Panel Mounting Bracket
1 x Cable for DB-9 to 3-wired
If any of these items are missing/damaged, contact your 

distributor or sales representative immediately.

Notes

For more information on this and other Advantech
products, please visit our websites at:

http://www.advantech.com
http://www.advantech.com/eAutomation

For technical support and service:

http://www.advantech.com.tw/eservice

This startup manual is for the ADAM-4542+
Part No: 2004542003

5th Edition

July 2021

Overview

Fiber optic transmission offers the benefits of wide 

bandwidth, immunity to EMI/RFI interface, and secure 

data transmission. The ADAM-4542+ can be used as an 

RS-232/422/485 point-to-point or point-to-multipoint 

connection for transmitting and converting full/half-

duplex signals and their equivalents within a fiber optic 

environment. Fiber optics are the perfect solution for 

applications where the transmission medium must be 

protected from electrical exposure, lighting, atmospheric 

conditions or chemical corrosion.
The ADAM-4542+ is specially designed to link 

various machinery equipped with RS-232/422/485 

communication ports (such as computer systems or 

manufacturing machines). Using standard SC connectors, 

the module’s fiber optic port can accommodate a wide 

range of fiber optic cable. ADAM-4542+ also supports 

the redundancy requirement. You can use two pairs of 

ADAM-4542+ for a redundant architecture. This special 

design offers higher reliability.

Features

 

ƒ

Direct plug-and-play

 

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Easily mounted on a DIN-rail, panel, or piggybacked

 

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Transmission speeds of up to 921.6 kbps 

(RS422/485)

 

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Optical fibers enable transmission of up to 15 km

 

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Half/Full-duplex, bidirectional transmission mode

 

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Support for ring-mode

 

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Avoid lightning strikes and EMI/RFI

 

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Prevents damage from electrostatic discharge

 

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Stable and error-free data transmission

 

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Automatic internal RS-485 bus supervision

 

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No external flow control signals required for RS-485

 

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Transient suppression and over-current protection on

 

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RS-232/422/485 data lines

 

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LED for power and data flow indication

Specifications

 

ƒ

Fiber Optic 

: Single Mode

 

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Wavelength

 : 1310 nm

 

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Transmission Distance

 : 15 km

 

ƒ

Optical Power Budget (attenuation) 

: -15 ~ -8 dBm

 

ƒ

Casing

 : ABS with captive mounting hardware

 

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Communication Mode

 : Asynchronous

 

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Connector

 : Plug-in screw terminal

 

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Fiber port 

: SC

 

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Transmission Mode

 : Full/Half-duplex, bidirectional

 

ƒ

Transmission Rate

 : Up to 921.6 kbps

 

ƒ

Power Requirement

 : Unreg10 ~ +30 V

DC

 

ƒ

Operating Temperature

 : -10 ~ 70°C (14 ~ 158°F)

 

ƒ

Operating Humidity

 : 5 ~ 95% (non-condensing)

 

ƒ

Accessories

 : DIN-rail mounting adapter, panel 

mounting bracket

Two Year Warranty

Advantech warrants to you, the original purchaser, that 

this product will be free from defects in materials and 

workmanship for two years from the date of purchase. 

This warranty does not apply to any products which 

have been repaired or altered by persons other than repair 

personnel authorized by Advantech, or which have been 

subject to misuse, abuse, accident or improper installation. 

Advantech assumes no liability under the terms of this 

warranty as a consequence of such events.
If your product is defective, it will be repaired or replaced 

at no charge during the warranty period. package and ship 

it prepaid to your dealer.

Summary of Contents for ADAM-4542+

Page 1: ...42 for a redundant architecture This special design offers higher reliability Features Direct plug and play Easily mounted on a DIN rail panel or piggybacked Transmission speeds of up to 921 6 kbps RS422 485 Optical fibers enable transmission of up to 15 km Half Full duplex bidirectional transmission mode Support for ring mode Avoid lightning strikes and EMI RFI Prevents damage from electrostatic ...

Page 2: ...hen you need to set SW2 Baud Rate SW2 1 2 3 4 5 6 7 8 9 1200 bps ON OFF OFF OFF OFF OFF OFF OFF OFF 2400 bps OFF ON OFF OFF OFF OFF OFF OFF OFF 4800 bps OFF OFF ON OFF OFF OFF OFF OFF OFF 9600 bps OFF OFF OFF ON OFF OFF OFF OFF OFF 19 2 kbps OFF OFF OFF OFF ON OFF OFF OFF OFF 38 4 kbps OFF OFF OFF OFF OFF ON OFF OFF OFF 57 6 kbps OFF OFF OFF OFF OFF OFF ON OFF OFF 115 2 kbps OFF OFF OFF OFF OFF OF...

Page 3: ...o save lots of cost caused from the number of modules and the length of optical fiber Following diagrams demonstrates the Ring application Ring Operation mode is set by DIP4 of SW3 Limitation While applying ring operation please notice the following limitations It only supports the half duplex Up to 100 ADAM 4542 can be connected over a distance of 1 500 km Under ring operation RS 232 422 485 all ...

Page 4: ...f module there are two sets of LED which are status LED and TX RX LED The meaning for LED display method is described as following table Description Status TX RX Green Red Red TransmittingData ON Receiving Data ON Power Fiber state Fiber Rx Redundant Working ON Power Fiber state Fiber Rx Redundant Failed ON If the module is set as a secondary module in the redundant structure no LED will be ON ...

Page 5: ...artup Manual 5 Wiring Diagrams Non Redundant System Redundant System Redundant systems can also support RS 422 In a redundant system the ground of the external power for modules must be connected together ...

Page 6: ... Reduce attenuation by reducing connector loss transmission distances etc The connection between the communication ports is neither DTE to DTE nor DCE to DCE connection Add a converter to one of the optical modems so that the pin assignments from the communication port to the modem are from pin 2 to pin3 and from pin 3 to pin 2 Damage Test If none of the above resolved your problem your module may...

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