Black Box Async RS232 to RS422/485 Interface Converter - DB9 to Terminal Block
Manufacturer: Black Box Corporation
Mfr. Part: IC820A
1 x DB-9 RS-232 , 1 x Terminal Block - External
About This Product
Overview
- 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.
- Transmit data up to 115 kbps or at distancesup to 4000 ft.
- Operates in point to point or multipoint applications
- 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
- The RS485 driver is automatically enabled during each spacing state on the RS232 side.
Quick Specifications
- Product Model
- IC820A
- Product Type
- Transceiver/Media Converter
- Total Number of Ports
- 2
- Power Source
- Power Supply
- Plug/Connector Type
- Terminal Block
- Form Factor
- External
- Environmentally Friendly
- Yes
- Country of Origin
- United States