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Industrial RS232 to RS485 Converter

Model CON-485-PIE

Category: RS232 to RS485 Converters

DESCRIPTION

The CON-485-PIE is an industrial grade bi-directional port powered or externally powered RS232 to RS485 converter which converts a full-duplex RS232 port to a half-duplex two-wire RS485 port. A built-in data direction auto-turnaround feature automatically enables the RS485 driver when data is present from the RS232 port, eliminating the need for software drivers, and making the device fully plug-and-play. The CON-485-PIE has a DB9 female connector on the RS232 serial port, and DB9 male connector on the RS485 port. A separate terminal block is included with the product. The terminal blocks plugs into the RS485 port, providing screw-lug wire terminations for the port. The unit is enclosed in a rugged ABS housing, and is powered from the RS232 data lines; no external power is required. This converter operates from 300 to 115,200 bps.

FAIL-SAFE COMPLIANT:

This Industrial RS232 to RS485 converter is fail-safe compliant. When the RS485 port is in open, shorted, or terminated state the TX outputs are in a known Mark state (HIGH State). This insures the converter does not go in a unknown state during a fault condition.

PORT-POWERED WITH OPTIONAL EXTERNAL POWER:

The CON-485-PIE has an optional 5V DC external power input, The CON-485-PIE is normally port-powered from the RS-232 data lines while using a capacitor charge pump built into the converter to provide necessary power. There are rare instances where the RS232 host device is not capable of port-powering the converter due to signal incompatibilities or low voltage levels. If this should occur, all that is necessary is adding a 5V DC external power to the terminal block or DB9 connector.

FEATURES

  • Plug-and-Play (Hot-pluggable)
  • Port Powered - No External Power Needed
  • Optional 5V External Power Can Be Applied
  • Rugged Industrial Grade Design
  • Data Direction Auto-turnaround - No Flow Control is Necessary
  • Built-in 600W Surge and 15KV Static Protection
  • 5 Year Manufacturer’s Warranty
  • RoHS 3, CE, FCC and REACH Certified
Industrial RS232 to RS485 Converter
Industrial RS232 to RS485 Converter plus block
PRICE: $16.95

IN STOCK

30 Day Money Back Guarantee!

5 Year Replacement Warranty!

ISO 9001:2015 QUALITY MANAGEMENT

ISO-9001:2015

Our internationally recognized ISO 9001:2015 Quality Management System (Cert. No. 743003912) with a scope of “Design, Sales, Distribution of Data Communication and IT Support Services“ was recognized and certified by TÜV Rheinland of North America known for its very demanding and stringent requirements. For more details see our Quality Policy.

COMMUNICATION
STANDARDS: EIA/TIA RS-232C Standard and RS-485 Standard
BAUD RATES: From 300 To 115,200 bps
CONNECTOR TYPES: RS-232 Side: DB9 Female and RS-485 Side: either DB9 Male or 4-way Terminal Block
DISTANCE: RS-232 Side: 16 ft (5m) and RS-485 Side: up to 4000 ft (1.2km)
MAX # OF CONNECTIONS: 128 Connection Drops
FAIL-SAFE: Fail-safe Compliant
ELECTRICAL
POWER SOURCE: Port Powered From RS-232 Data Lines - Optional External 5V Power
CURRENT CONSUMPTION: Less Than 10 mA
STATIC PROTECTION: 15KV Electric Static Discharge (ESD) Protection
SURGE PROTECTION: 600W Surge Protection
CONVERSION IC: Exar SP485EEN - For more information from Exar; Follow this link.
MECHANICAL
HOUSING: Rugged ABS
WEIGHT: With Terminal Block: 1.2oz (36 grams)
Without Terminal Block: 0.8oz (24 grams)
DIMENSIONS: With Terminal Block: 3.15 X 1.33 X 0.70 in (80.0 X 33.8 X 17.8 mm)
Without Terminal Block: 2.47 X 1.33 X 0.70 in (62.8 X 33.8 X 17.8 mm)
ENVIRONMENTAL
OPERATING TEMP.: -40ºF to 185ºF (-40ºC to 85ºC)
STORAGE TEMP.: -40ºF to 185ºF (-40ºC to 85ºC)
OPERATING HUMIDITY: 5% To 95% - No Condensation
QUALITY
PRODUCT SAFETY: CE, FCC and RoHS Conformance Certified
QUALITY MANAGEMENT: Manufactured and Distributed to ISO 9001:2015 QMS
RELIABILITY: Low Failure Rate - 99+% Reliability Since Inception
WARRANTY: 5 Year Replacement Warranty

RS232 Side DB9 Female

Signal DCD DTR DSR RTS CTS TX RX GND
Pin # 1 4 6 7 8 2 3 5
Function TIED TIED TX RX GND

RS485 Side DB9 Male or Terminal Block

Signal T/R+ T/R- GND VCC
Pin # 1 2 5 6
Function 485+ 485- GND 5V OPT

Using two CON-485-PIE units:

  1. Check that all connections comply with the connection diagrams.
  2. Perform a loop back test on two units:
    1. Connect the two RS-485 ports.
    2. Connect the two RS-232C ports to two PC RS-232 ports.
    3. Running hyper terminal programs on both PCs, send ASCII characters to the CON-485-PIE converter from one PC port, and check that the characters are received at the 2nd PC port. Repeat the test in the opposite direction. This tests that the transmit and receive functions of both CON-485-PIE units are working properly.

Download FREE FULL VERSION AccessPort Advanced Serial Monitor, Simulation and Data Analysis Software Tool.  This software tool is great for testing converters.  Supports Windows 98/XP/VISTA/WIN 7/WIN 8/WIN 10.  DOWNLOAD SOFTWARE AND USER MANUAL

Below are some of the RS232 to RS485 converter applications.

PORT-POWER MODE:

FIG. 1: EXTENDING THE RS232 DATA DISTANCE - PORT-POWER MODE

FIG. 2: MASTER/SLAVE MULTI-DROP CONFIGURATION - PORT-POWER MODE

5V EXTERNAL POWER MODE:

FIG. 3: EXTENDING THE RS232 DATA DISTANCE - 5V POWER MODE

FIG. 4: MASTER / SLAVE MULTI-DROP CONFIGURATION - 5V POWER MODE

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