Black Box Async RS232 to RS422/485 Interface Converter - DB9 to Terminal Block IC820A

Description :

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

• 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.

• The RS485 driver is automatically enabled during each spacing state on the RS232 side.


• Operates 2-wire half-duplex or 4-wire half- or full-duplex.


• async (data leads) only.


• Up to 32 RS485 devices can be attached to create a large multi-drop network


• Transmit data up to 115 kbps or at distancesup to 4000 ft.


• Operates in point to point or multipoint applications

Product Type: Transceiver/Media Converter
Environmentally Friendly: Yes
Environmental Certification: WEEE
Product Condition: New
Taa Compliant: Yes
Country Of Origin: United States
Brand Name: Black Box
Form Factor: External
Manufacturer: Black Box Corporation
Product Model: IC820A
Product Name: IC820A Universal RS-232 to RS-422/485 Bidirectional Converter
Manufacturer Part Number: IC820A
Manufacturer Website Address: http://www.blackbox.com
Limited Warranty: 5 Year