Black Box Universal RS-232<->RS-422/485 Converter
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Black Box Universal RS-232<->RS-422/485 Converter
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Black Box Universal RS-232<->RS-422/485 Converter with Opto-Isolation - Serial adapter - RS-232 - RS-422/485

Item#:  13838226  | Model#: IC821A
Price:
$129.99
Shipping:
In Stock. Usually ships next business day. (Details)

Black Box Universal RS-232<->RS-422/485 Converter Product Details

The BLACK BOX Universal RS-232<ń> RS-422/485 Converter with Opto-Isolation isolates and converts RS-232 signals into RS-422 / RS-485 signals and vice versa. Unlike other converters, external software is not required to control data flow. The RS-232 input is wired for DCE through a DB9 female connector, and RS-422 / RS-485 signals are interfaced through a removable terminal block.

For RS-232, the connection requires RD, TD, and signal ground. In RS-422 mode, the driver is always enabled for full-duplex communications. A twisted pair is required for transmit, and a twisted pair is also required for receive. A ground reference wire is also needed. In both RS-485 modes, the RS-485 driver is automatically enabled during each space state by the presence of an RS-232 signal. When the RS-232 data is in a mark or idle state, the RS-485 driver is disabled and the RS-485 data lines are held in a mark state by the bias provided by a 4.7-ohm resistor; the value of this resistor may need to be changed, depending on the termination you use. To connect to several RS-485 devices with minimal wire, select the unit's 2-wire, half-duplex RS-485 mode. When data is requested, the addressed device transmits and then reverts back to receive status.

For 4-wire master / slave circuits, select the unit's 4-wire, full-duplex RS-485 mode. In this mode, addressed devices can receive data while transmitting data from a previous request. When used as a master in a single-master system, Switch 1 may be selected because the unit is the only transmitter in the system. When used as an RS-485 slave, the RS-232 device must provide addressability. Biasing in a master / slave system is provided by the end-of-line slave.

Specifications

General
   Device Type:  Serial adapter
   Form Factor:  External
   Interface (Bus) Type:  Serial RS-232

Networking
   Ports:  RS-422/485
   Connectivity Technology:  Wired
   Data Link Protocol:  RS-422, RS-485
   Features:  Full duplex capability

Expansion / Connectivity
   Interfaces:  1 x RS-422/485 - terminal block
   Connections:  1 x serial - RS-232 - 9 pin D-Sub (DB-9)

Manufacturer Warranty
   Service & Support:  1 year warranty
   Service & Support Details:  Limited warranty - 1 year
 
  • Manufactured by: Black Box Corporation
    Warranty provided by: Black Box Corporation
    UPC No:
    Mfg Part No: IC821A
  • Box Size: ( Length:0, Width:0, Depth:0)
    Shipping Weight: 0.4000 pound(s)
    Click here for full warranty and support information
  • Black Box Corporation logos are registered trademarks of Black Box Corporation. All others trademarks and copyrights mentioned herein are the property of their respective owners.
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