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Isolated USB to RS485 Converter

AR-321-CM

◎ The isolated USB/RS-485 converter that can prevent computer from being interfered by remote wiring and equipment.
◎ Convert computer USB port into RS485 communication port, connect the computer and the controller reader to realize the networking communication of access control system

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Features

USB/RS-485 Features

  • Able to link readers and PC to achieve Networking Access Control
  • Indicators for power and communication, for debugging and status
  • Surge protection : 3 kV
  • Electrical isolation : 2500V RMS

Specification

Comparison Chart of Driver Versions of AR-321CM Chip and Operation System

Manufacturing DateOperation SystemChip VersionDriver Version

After 2021/03 ~

Win-11
Win-10
Win-7

PL2303-GC

High Note: Please firstly uninstall old driver before installing new driver !!!
PL23XX_Prolific_DriverInstaller_V400

2013/01 ~ 2021/03PL2303-HXD

2008/03 ~ 2012/12

Win-7
Win-XP

PL2303-HX

PL23XX_Prolific_DriverInstaller_V260

 

Note 1: Step by step uninstall old driver
Go to Control Panel Device ManagerImportant: required to unplug all of AR-321CM devices from computer’s USB Port in the first hand

Select Ports (COM & LPT) à

select “USB-to-Serial Comm Port”, right click à

select “Uninstall device”

Tick the box of option “Delete the driver software for this device.

à select “Uninstall”

    

Reinstall new USB Driver for Win11USB Driver version: PL23XX_Prolific_DriverInstaller_V300.exe and after
  •  Tools for checking chip version:PL23XX_checkChipVersion_v1020.exe
  • When auto-simulated USB COM port number is more than 20, it must change number less than 20 ; Moreover, the computer must be restarted after changing the number.

 

AR-321-CM Specifications

 
InterfaceUSB <--> RS485
Baud Rate4800 bps - 115200 bps
Protocol
Serial Buffer
LED Indicator3 LEDs for Power, Communication
Watchdog FunctionYes
Active Distance300m (RS485)
Surge SuppressionPower: 30 Volt, bi-directional avalanche breakdown device.
RS485 6.5 Volt, bi-directionalavalanche breakdown device.
400W peak power dissipation.
Clamping time < 1 picosecond(theoretical)
FusesPower PTC 150mA , RS485 PTC 30mA
IsolationElectric 2.5 kV
Power Supply5 VDC
Power Consumption<1W
Dimension (mm)76(H)x37(W)x16.4(D)
Net Weight (g)approx. 60
OS SupportedWindows 7/8/10, Win Server 2008/2012/2016
Network/Device setting
Operating Temperature-20℃ ~ +70℃

 

 

Datasheet / Manual

File NameNew featuresVersionUpdated DateDownload
Catalogues
*
Converter Series Catalogue
V180111 Download
Manual
*
AR-321CM Manual
V2312012023-12-01 Download
Software
*
AR-321CM : USB Driver
AR-321-CM
Operation System: Win7/Win10/ Win11
Chip Version: PL2303-GC (Manufacturing Date: After 2021/03 ) / PL2303-HXD (Manufacturing Date: 2013/01 ~ 2021/03 )
Driver Version: PL23XX_Prolific_DriverInstaller_V408
2022-07-25 Download
*
AR-321CM : USB Driver
AR-321-CM
Operation System: Win7/Win10/ Win11
Chip Version: PL2303-GC (Manufacturing Date: After 2021/03 ) / PL2303-HXD (Manufacturing Date: 2013/01 ~ 2021/03 )
Driver Version: PL23XX_Prolific_DriverInstaller_V400
2022-01-05 Download
*
AR-321CM : USB Driver
Attention: Please read the important notice before installing2022-01-05 Download
*
USB Driver
AR-321CM (Win8 supported after and included A1301xxxxx)
AR-725P (Seria No. after and included A1308xxxxx)
AR-737P (Phased Out and replaced by 725P)
(Please obtain software password from installer)
2021-03-24 Download
Catalogues
*
Converter Series Catalogue
V180111
Manual
*
AR-321CM Manual
V231201
2023-12-01
Software
*
AR-321CM : USB Driver
AR-321-CM
Operation System: Win7/Win10/ Win11
Chip Version: PL2303-GC (Manufacturing Date: After 2021/03 ) / PL2303-HXD (Manufacturing Date: 2013/01 ~ 2021/03 )
Driver Version: PL23XX_Prolific_DriverInstaller_V408
2022-07-25
*
AR-321CM : USB Driver
AR-321-CM
Operation System: Win7/Win10/ Win11
Chip Version: PL2303-GC (Manufacturing Date: After 2021/03 ) / PL2303-HXD (Manufacturing Date: 2013/01 ~ 2021/03 )
Driver Version: PL23XX_Prolific_DriverInstaller_V400
2022-01-05
*
AR-321CM : USB Driver
Attention: Please read the important notice before installing
2022-01-05
*
USB Driver
AR-321CM (Win8 supported after and included A1301xxxxx)
AR-725P (Seria No. after and included A1308xxxxx)
AR-737P (Phased Out and replaced by 725P)
(Please obtain software password from installer)
2021-03-24

Resources

Hardware
Comparison Chart of Driver Versions of AR-321CM Chip and Operation System
Certificate Type
File Name
Download
CE Certification
CE_401-IO-0016R_321L485_321CM_401RO16_401RO16B
*

Smart Modbus Room Control System

How to Order

 

Since established in 1993, SOYAL Technology has been adopting the distribution policy of sales and after-sales service. Due to all SOYAL products are produced with high industrial-grade components, the users can use our products for more than 10 years, in which indicates SOYAL provides a reliable security system with trusted and long-term companionship.
In order to ensure long-term and high-quality after-sale services and maintenance, it is very important to carefully select distributors who can provide good installation and service. 
We would advise the customers to take after-sales service as the main consideration before purchasing to avoid any doubts about installation and after-sales service. 
In addition to physical distributors, SOYAL also made a variety of online teaching videos and Q&A to help customers quickly find answers as like 24 / 7 services. You are welcome to subscribe our training channel.

After Sales Service

SOYAL offer Standard Warranty and SOYAL Extended Warranty Program that can be listed below:

1. Standard Warranty is 12 months warranty against manufacturing defects is guaranteed since the date of shipment under the circumstances of non-natural disaster, damage, non- deliberate damage by people.

2. Extended Warranty Program is extended program of Standard Warranty to prolong the Warranty period in which divided into two different plans.

Plan 1. Directly Add Purchase

Purchase Extended Warranty by the time product is purchased.

Plan 2. Purchase Before Warranty Expires

Purchase the Extended Warranty before the original 12 months warranty expires. If you did not purchase the Extended Warranty when you purchase the product, you can enjoy an opportunity to purchase an extended warranty before the 12 months warranty expires.

 

 

Please refer to the following price list for the additional purchase fee required for the Extended Warranty of the two plans:
 

Extended Warranty Price List

Extendend WarrantyPlan 1. Directly Add PurchasePlan 2. Purchase Before Warranty Expires
Extended to 2  years warranty10% of the Unit Price15% of the Unit Price
Extended to 3  years warranty20% of the Unit Price25% of the Unit Price
Extended to 4  years warranty35% of the Unit Price40% of the Unit Price
Extended to 5  years warranty50% of the Unit Price55% of the Unit Price
Extended to 6  years warranty65% of the Unit Price70% of the Unit Price
Extended to 7  years warranty80% of the Unit Price85% of the Unit Price
Extended to 8  years warranty95% of the Unit Price105% of the Unit Price
Extended to 9  years warranty115% of the Unit Price125% of the Unit Price
Extended to 10  years warranty135% of the Unit Price145% of the Unit Price

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