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Black Box Async RS232 to RS422/485 Interface Converter DB9 to Terminal Block

Black Box Async RS232 to RS422/485 Interface Converter DB9 to Terminal Block
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For Government/Education/Business pricing, please call 440.355.8008


Your Price: $132.87
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General Information
  • Enables you to select RS-485 2-wire half-duplex or RS-485 4-wire full-duplex operation.
  • Selectable RS-422 operation with transmit and receive always enabled.
  • Automatic RS-485 driver control, so it works without any special programming for handshaking signals. Also enables transmitter from RS-232 TD signal and receiver when not transmitting.
  • Built-in bridging switches for 2- or 4-wire operation with no external jumpers to set.
  • Set operating mode with four switches.
  • Converts using either port power or power from an external 120-VAC/12-VDC power supply (sold separately).
  • No external power is required if two RS-232 output handshake lines are available.

Interfaces/Ports
Total Number of Ports:2

Power Description
Power Source:Power Supply
Plug/Connector Type:Terminal Block

Physical Characteristics
Form Factor:External

Miscellaneous
Environmentally Friendly:Yes
Country of Origin:United States
TAA Compliant:Yes

Warranty
Limited Warranty:5 Year

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Shipping Restrictions
  • This item cannot be shipped to PO Boxes.
  • This item can be shipped only within the U.S.

Special Order Item

This item ships directly from the manufacturer and is not stocked in our warehouse. If stock is available at the manufacturer, the item will ship directly to you, usually within 7 - 15 business days.

Once the order has been sent to the manufacturer it can no longer be canceled.

If payment is made via credit card it will be charged before the order is sent to the manufacturer.

You must contact the manufacturer directly regarding returns and defective items.

We will contact you by email if the item is sold out or backordered (and we were unable to update the site before you placed the order) or if the item will be delayed longer than expected.

We have no control over the speed of the manufacturer's order processing, or whether they will honor your request to ship the item by any particular method.



  • UPC: 822088065661 
  • Mfr's Part #: IC820A 

The product you are viewing is available for sale on our GSA Schedule 70 Contract. Any purchaser who is eligible to purchase through GSA will be able to receive this product at the discount price negotiated by GSA. For GSA pricing, please see our listings on GSAadvantage, or contact our GovEd department to request pricelist. Pricing offered on GSAadvantage and our GSA pricelist is standardized pricing. You may be eligible for further discounts for many of the products we offer. Please contact our GovEd Department to negotiate additional discounts.

Most federal government agencies are eligible to purchase through GSA. State and local government agencies, along with educational institutions are also eligible due to the fact that we participate in Cooperative Purchasing. State and Local Government Agencies and Educational Institutions may also request to purchase many of our products at a discount without purchasing through GSA. Please contact our GovEd department with any questions.