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Serial / RS232 / RS485 / RS422 / TTL Converter Products

USB Adapters - Fiber Optic Converters - Ethernet Converters

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USB to RS485 / RS422 Adapter

Serialcomm - MODEL USB-485C

 

 

 

IMPORTANT MESSAGE FROM THE
CEO OF SIMA S. ENTERPRISES

Since we dropped their product line a long time ago, Commfront based in Singapore, has been posting false and defamatory statements on the internet.  The latest is that "we simply bought our certificates without testing" and "our testing time is 3 days".  These and other statements made by Commfront are unequivocally false and without basis.  These false statements stem from faltering sales by an Asian company who hires a U.S. distributor to ship their products on their behalf.

USB to RS422 Converter
 

      CERTIFICATIONS:     rohs certified ce certified fcc certified iso 9001 certified 

Sima S. Enterprises offers the finest quality serial USB to RS232 / RS485 / RS422 / TTL converters on the market at low prices. SerialComm is the choice manufacturer of quality data communication products. Our USB to serial converter products can be used for any application whether it is commercial or industrial. If you need protection, reliability and power efficiency at low prices we have the solution. Our RS232 to RS232 / RS485 / RS422 / TTL converters come in a number of models to fit your needs.

USB TO RS485 / RS422 ADAPTER

WINDOWS 7/VISTA/XP/98/
WIN CE/MAC/LINUX COMPATIBLE

 

30 Day Money Back / 5 Year Replacement Guarantee

"Simple and Hassle-Free Operation
Completely Auto-Sensing and Self-Adjusting
 No Manual Settings Necessary At All"

SerialComm Model: USB-485C
Download Specs.   USB-485C.PDF

  DOWNLOAD DRIVERS

OUR GUARANTEE

CE - FCC - RoHS
CONFORMANCE
DECLARATION

FREQUENTLY ASKED QUESTIONS

$44.95 - IN STOCK

  

USB TYPE A FEMALE TO RS485
DB9 MALE OR 4-WAY TERMINAL BLOCK

The SerialComm USB-485B is a high quality economical bi-directional USB-powered USB to RS485 / RS422 converter in a 9 pin format. It can convert any standard full duplex USB port to any half duplex RS485 port or full duplex RS422. In simple terms, it will convert any USB signal to a RS485 signal or RS422 signal and vice versa. The unit is powered from the USB port. It also supports data direction auto-turnaround. Therefore, no external power or flow control is required. The USB-485B has a USB type A female connector on the USB side and a DB9 male connector or 5-way terminal block on the RS485 / RS422 side. Separate terminal block is included in package

The USB-485C uses the latest FTDI chipset and is fully compatible with Windows 7/ Vista / XP / 98 / Server 2008 / Server 2005 / Server 2003 /Server 2000 (32 BIT). Windows 7 / Vista / XP / 98 / Server 2008 / Server 2005 / Server 2003 (64 BIT), Win CE, Mac 8.6 / 9.x / 10.x and Linux.

FEATURES

  • Included Terminal Block for easy installation
  • Adds one RS485 or RS422 port to your device using the USB port
  • Plug & play (hot pluggable data format auto-sensing and self-adjusting)
  • USB 2.0 and 1.1 Compliant
  • Supports 300 baud to 1 Mbps baud rates
  • Uses latest FTDI Chipset and Drivers
  • 3 feet (1m ) cable for convenience
  • Transmit / Receive LED Indicators
  • Internal 128/385 Byte TX / RX buffers
  • No IRQs, IO, DMA required.  No IRQ Conflicts
  • Supports remote wakeup and power management
  • Easy configuration utility
  • Web based driver update utility
  • Port Powered: no external power is necessary
  • 5 Year Manufacturer’s Warranty
  • RoHS, CE, FCC and  ISO 9001 Compliance Certified
  • Built-in surge protection, static protection and circuit protection
  • Surface Mount RoHS Compliant Technology manufactured to ISO 9001 Standards
     

USB TO RS485 / RS422 ADAPTER SPECIFICATIONS

PART NUMBER: USB-485C
STANDARDS: USB 1.1 Standard - RS485 Standard
BAUD RATES: From 300 Baud To 1 Mbps Baud
POWER SOURCE: Port Powered From USB Port
CURRENT CONSUMPTION: Less Than 100 mA
CONNECTOR TYPES: USB Side: Type A Female and RS-485 Side: DB9 Male or 3-Way Terminal Block
DISTANCE: USB Side: 10 ft (3m) and RS-485 Side: 4000 ft (1.2 km)
WEIGHT: 2.7oz (76 grams)
DIMENSIONS: RS485 / RS422 Housing Without Terminal Block: 1.98” X 1.43” X 0.72” (50.2 mm X 36.2 mm X 18.2 mm)
RS485 / RS422 Housing With Terminal Block: 3.03” X 1.43” X 0.72” (76.9 mm X 36.2 mm X 18.2 mm)
OPERATING TEMP.: 14°F to 140°F (-10°C to 60°C)
OPERATING HUMIDITY: 5% To 95% - No Condensation
     

USB ADAPTER CONNECTOR PINOUTS
 

RS485 / RS422 SIDE
RS485 485- 485+     GND
RS422 T- T+ R+ R- GND
PIN # 1 2 3 4 5

DB9 MALE OR 5-WAY TERMINAL BLOCK

USB to RS422 adapter           USB to RS422 Converter

 
     

USB CONVERTER APPLICATIONS

USB TO RS485 MODE OPTION:

USB to RS485 Converter

FIGURE 1: EXTENDING THE USB DATA DISTANCE IN RS485 MODE


USB to RS422 Adapter

FIGURE 2: MASTER / SLAVE MULTI-DROP CONFIGURATION IN RS485 MODE

 

USB TO RS422 MODE OPTION:

USB to RS485 / RS422 converter

FIGURE 1: EXTENDING THE USB DATA DISTANCE IN RS422 MODE


USB to RS485 / RS422 adapter

FIGURE 2: MASTER / SLAVE MULTI-DROP CONFIGURATION IN RS422 MODE

 

TROUBLESHOOTING INSTRUCTIONS

 

RS232 TO RS485 MODE OPTION:

Perform a loop back test on a pair of USB-485C converters. Connect the USB female connector of the cable to the USB of the PC. Install the USB / RS485 / RS422 Cable Driver on PC per installation instructions provided. Attach the other RS-485 converter to a PC and using two instances of a HyperTerminal program send a character from one and see if it echoes to the other. This will test both transmit and receive functions in RS485 mode.

RS232 TO RS422 MODE OPTION:

Perform a loop back test on one USB-485C converter. Connect the USB female connector of the cable to the USB of the PC. Install the USB / RS485 / RS422 Cable Driver on the PC per installation instructions provided. Tie signals T+ to R+ and T- to R- of the USB-485C. Using HyperTerminal send a character from one and see if it echoes to the other. This will test both transmit and receive functions of the converter in RS422 mode.

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SIMA S. ENTERPRISES LLC
 www.rs232-converters.com
 email:sales@simaenterprises.com
PHONE:1-877-647-7434
FAX: 1-732-749-3598

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NEW JERSEY OFFICE
1298 Evans Road
Wall Township, NJ 07719

FLORIDA OFFICE P.O. BOX
5944 Coral Ridge Road #259
Coral Springs, FL 33076
2006-2010 Copyright Protected - Sima S. Enterprises LLC - Terms & Conditions - Privacy Statement   -     Protected By Copyscape

OUR CUSTOMER GUARANTEE!

We are a full service company offering the highest quality converters at a low price.

 

 

Quality Guarantee - SerialComm converters are low priced, high quality products and made to last a lifetime. They are manufactured in a ISO-9001 certified facility using surface mount technology with lead free components.  All converters are pretested prior to shipment and are fully guaranteed for 5 years.  There are no converters, Commercial or Industrial that surpass SerialComm's quality standards at any price tag. Satisfaction Guarantee - We offer a 100% 30 Day Money Back Guarantee which most companies do not offer.  If for any reason, you 're not satisfied with your purchase within 30 days, you can return it with no penalties.  We will return the full value of the order minus shipping costs. We do not reimburse express shipping fees.  We do not add restocking fees when returning a purchase within 30 days. Manufacturer's Warranty – SerialComm offers a 5-year Workmanship Warranty.  We are so confident our product are built to last, within a 5 year period from the time of purchase, if a rare event of a malfunction should occur; we will replace your product for free.  Fill out our RMA form and we will issue you a RMA number for return of your product.   We do not issue refunds after 30 days of purchase. Express Shipping Guarantee - We specialize in shipping express orders on-time.  If FEDEX express shipping is selected before 6:30 PM E.S.T. and the items are in stock; we guarantee that we will get the order delivered to FEDEX on-time for the scheduled express delivery.  If we fail do to so, we will ship you the package the next day and credit you the full value of the order. (LIMITED TO $100 PER ORDER).  Please refer to our Terms for full details.
 

Free Worldwide Shipping - We offer FREE shipping with all SerialComm products with TRACKING!  Not just to the U.S., we ship our products worldwide for FREE.   Given availability of items, they are shipped the next business day with an ETA of 2-5 days for domestic and 5-15 days for International orders using USPS, FEDEX or DHL couriers.  Express Shipping is extra and shipped the same day ordered.

  

Sales & Technical Support -We offer sales and technical support by phone, live chat and email 24/7.  Our sales team  provides immediate customer support such as taking orders or assisting in expedited shipping requirements.  If you need technical help, an experienced Electrical Engineer can offer assistance.  Our technical support team can be an invaluable service which we provide for free.

  

Purchase Orders - We accept purchase orders as well as credit cards and PayPal. We understand that many companies prefer to issue purchase orders rather than using credit cards.  We accept purchase orders with NET 30 terms in most cases.    Not too many companies on the internet are willing to accept purchase orders but we do.  Purchase orders can be faxed or emailed.

  

Fully Certified - Certifying Data Communication Products is extremely important for compatibility, safety and standards compliance.  All of our products are fully certified and passed CE, FCC and RoHS compliance tests.  These certificates provide confidence that our products are the highest quality while also environmentally safe and compatible with other devices.