CONV232/485 and CONV232/422
Serial Data Converters
FEATURES
- Balanced-mode, long-distance RS-485 and RS-422 communication with no internal installation
- External power not needed for small networks
- Nothing to configure; automatically detects baud rate and format
CONV232/485 supports two-wire RS-485 communications, which is half-duplex (only one may transmit at a time) but allows up to 32 participants on a "party line" network. CONV232/422 supports four-wire RS-485 and RS-422 communications, which only allows two peer participants (or one master and multiple slaves) but is full-duplex (both peers, or the master and one slave, may talk at the same time.) CONV232/422 can also support two-wire RS-485 if the transmit and receive pins are tied together, but in this configuration it echoes on the RS-232 side.
Internally, TD and RD are converted to balanced lines and the RD line is automatically disabled when data is being transmitted to the RS-485 network. The converters can transmit and receive transparently at whatever speed the data is flowing, up to 460K baud for the CONV232/485 and 230K baud for the CONV232/422. CONV232/485 (and CONV232/422 in a two-wire RS-485 configuration) can support up to 31 other RS-485 devices (with the optional external power). CONV232/422 in a master-slave configuration can support up to 31 slave devices.
The
converters plug into your RS-232 port, and all you need to do is hook
up the RS-485 wires via a DB9 Male connector. Optional external power
is required when communicating with more than two REMOTE ACCES Pods, or
over long transmission lines; if external power is not provided, power
drawn from the DTR and RTS lines on the RS-232 port is sufficient where
the communication cable is short and there are few nodes.
Specifications
CONV232/485
- Optional External Power: When communicating with more than two REMOTE ACCES Pods or over long transmission lines, connect +5.5VDC to +16VDC @ 50 mA to J2 pin 8 with return via J2 pin 5.
- Data rate: Up to 460.8K baud.
- Serial format: any.
- Configurations: RS-232 to two-wire RS-485.
- Operating Temperature: 0-70°C, added-cost option, -40 to +85°C. Add -XT to part number.
CONV232/422
- Optional External Power: When communicating with more than two REMOTE ACCES Pods or over long transmission lines, connect +5.5VDC to +16VDC @ 40 mA to J2 pin 8 with return via J2 pin 5.
- Data rate: Up to 230.4K baud.
- Serial format: any.
- Configurations: RS-232 to four-wire RS-485 / RS-422, RS-232 to two-wire RS-485 (with echo on the RS-232 side).
- Operating Temperature: 0-70°C, added-cost option, -40 to +85°C. Add -XT to part number.
Regulatory Compliance
- This product is in full compliance with CE requirements.
| Model | Price (USD) |
|---|---|
| CONV232/485 | 49.00 |
| CONV232/422 | 49.00 |
Available Datasheets
- View / Download the CONV232-485 Data Sheet (.PDF)
- View / Download the CONV232/422 Data Sheet (.PDF)
Further information about available ACCES Software:
- Drivers And Operating Systems
- What drivers and other support we provide for various operating systems.
Setup Programs, Samples, And Utility Software- A description of the software package that comes with each ACCES card.
Redistributing Windows Drivers- A list of ACCES drivers and the files that compose them under different versions of Windows, so you can easily redistribute ACCES cards and drivers.
Custom Software Services- A description of some of our custom software offerings. Did you know we offer free programming services to qualifying customers?