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RS232 to RS422 Converter plus block
The terminal blocks plugs into the RS422 port, providing screw-lug wire terminations for the port. The unit is enclosed in a rugged ABS housing, and is powered from the RS232 data lines; no external power is required. This converter operates from 300 to 115,200 baud.
- Two Terminal Blocks Included, One Rugged and The Other With Optional 120 Ohm Termination
- MTBF(Mean Time Before Failure): 232,353 Hours
CON-422-PE9
Two separate terminal blocks, a rugged terminal block and a terminal block with built-in 120 Ohm termination are included with the product for maximum flexibility.
The CON-422-PE9 is a bi-directional port powered RS232 to RS422 converter which converts a full-duplex RS232 port to a full-duplex four-wire RS422 port. A built-in data direction auto-turnaround feature automatically enables the RS422 driver when data is present from the RS232 port, eliminating the need for software drivers, and making the device fully plug-and-play. The CON-422-PE9 has a DB9 female connector on the RS232 serial port, and DB9 male connector on the RS422 port.
- Plug-and-Play (Device is Hot-pluggable)
- No Drivers Needed
- Port Powered: No External Power is Necessary
- Data Direction, Auto-turnaround, No Flow Control is Necessary
- Built-in 600W Surge and 15KV Static Protection
Terminal Block With 120 Ohm Termination/Rugged Sealed Terminal Block
The terminal blocks are shipped with 120 Ohm termination off but can be turned on using the convenient jumper setting located on the left bottom of the terminal block.
5 Position With 120 Ohm Off
5 Position With 120 Ohm On
LEFT FIGURE: RS232 SIDE DB9 Female
Troubleshooting
RS422 SideDB9 Male or Terminal Block
- Check that all connections comply with the connection diagrams.
- Perform a loop back test on one unit:
- Connect the TX+ to RX+ and TX- to RX- on the RS-422 port. Connect the RS-232 port to the PC RS-232 port. Running a hyper terminal program on the PC, send ASCII characters to the CON-422-PE9 converter from one PC port, and check that the characters are received at the same PC port. This tests that the transmit and receive functions of the CON-422-PE9 unit is working properly.
Using two CON-422-PE9 units
- Perform a loop back test on two units:
- Connect the two RS-422 ports. Connect the two RS-232 ports to two PC RS-232 ports. Running hyper terminal programs on both PCs, send ASCII characters to the CON-422-PE9 converter from one PC port, and check that the characters are received at the 2nd PC port.
Below are some of the RS232 to RS422 converter applications.
APPLICATIONS
SPECIFICATIONS
COMMUNICATION
STANDARDS:
EIA/TIA RS-232C Standard and RS-422 Standard
BAUD RATES:
From 300 baud To 115,200 baud
CONNECTOR TYPES:
RS-232 Side: DB9 Female and RS-422 Side: either DB9 Male or 5-way Terminal Block
DISTANCE:
RS-232 Side: 16 ft (5m) and RS-422 Side: up to 4000 ft (1.2km)
MAX # OF CONNECTIONS:
32 Connection Drops
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