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Industrial RS232 to RS485 / RS422 Converter

Model CON-485/422-PI9

Category: RS232 to RS485 Converters

DESCRIPTION

The CON-485/422-PI9 is an industrial grade bi-directional port powered RS232 to RS485 /RS422 converter which converts a full-duplex RS232 port to a half-duplex two-wire RS485 port or full-duplex four-wire RS422 port. A built-in data direction auto-turnaround feature automatically enables the RS485/RS422 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-485/422-PI9 has a DB9 female connector on the RS232 serial port, and DB9 male connector on the RS485/RS422 port. A separate terminal block with built-in 120 Ohm termination is included with the product for maximum flexibility. The terminal block plugs into the RS485/RS422 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.

FEATURES

  • Plug-and-Play (Device is Hot-pluggable)
  • No Drivers Needed
  • Port Powered: No External Power Needed
  • Data Direction, Auto-turnaround, No Flow Control is Necessary
  • 5 Year Manufacturer's Warranty
  • RoHS 3, CE, FCC and REACH Certified
  • Built-in 600W Surge and 15KV Static Protection
Industrial RS232 to RS485 / RS422 Converter plus block
PRICE: $25.95

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 and RS-422 Standard
BAUD RATES: From 300 bps To 115,200 bps
CONNECTOR TYPES: RS-232 Side: DB9 Female and RS-485 Side/RS-422: either DB9 Male or 5-way Terminal Block
DISTANCE: RS-232 Side: 16 ft (5m) and RS-422/RS-485 Side: up to 4000 ft (1.2km)
MAX # OF CONNECTIONS: 128 Connection Drops
ELECTRICAL
POWER SOURCE: Port Powered From RS-232 Data Lines
CURRENT CONSUMPTION: Less Than 10 mA
STATIC PROTECTION: 15KV Electric Static Discharge (ESD) Protection
SURGE PROTECTION: 600W Surge Protection
CONVERSION IC: Exar SP491E - For further 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: 3.80 X 1.33 X 0.70 in (96.5 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 185ºC)
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/RS422 Side DB9 Male Or Terminal Block

Signal T+ T- R R+ GND
Pin # 1 2 3 4 5
RS485 485- 485+ GND
RS422 T+ T- R- R+ GND

Jumper Configurations:

RS-485 MODE JUMPER (L4 TO L5), (R1 TO R2) AND (R4 TO R5)
RS-422 MODE JUMPER (R2 TO R3)
120 OHM ACTIVE JUMPER (L2 TO L3)

RS-485 - NO 120 OHM

RS-485 - WITH 120 OHM

RS-422 - NO 120 OHM

RS-422 WITH 120 OHM

Using one CON-485/422-PI9 unit:

  1. Configure the jumpers on the terminal block for RS-422 mode.
  2. Check that all connections comply with the connection diagrams.
  3. Perform a loop back test on one unit:
    1. Connect the TX+ to RX+ and TX- to RX- on the RS-422 port.
    2. Connect the RS-232C port to the PC RS-232 port.
    3. Running a hyper terminal program on the PC, send ASCII characters to the CON-485/422-PI9 converter from one PC port, and check that the characters are received at the same PC port. This tests that the transmit and receive functions of the CON-485/422-PI9 unit is working properly.

Using two CON-485/422-PI9 units:

  1. Configure the jumpers on the terminal block for RS-485 or RS-422 mode depending on which function you want to test.
  2. Check that all connections comply with the connection diagrams.
  3. Perform a loop back test on two units:
    1. Connect the two RS-485 or RS-422 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-485/422-PI9 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-485/422-PI9 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 Port-powered RS232 to RS485 / RS422 converter applications.

RS232 to RS485 Mode Option

FIGURE 1: EXTENDING THE RS232 DATA DISTANCE IN RS485 MODE

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

RS232 to RS422 Mode Option

FIGURE 1: EXTENDING THE RS232 DATA DISTANCE IN RS422 MODE

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

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