Main Rs232/Rs485/Rs422 Interface (Asc0) - MTX M2M MTX-DIN Series User Manual

4.2.3 Main RS232/RS485/RS422 interface (ASC0)

The MTX-DIN modems have a standard RS232/RS422/RS485 main serial interface connected to the
ASC0 module's UART. The operating mode of this port can be configured by hardware through the
internal jumpers JPc1 and JPc3. To access them you must open the device enclosure. Below you can
find the board overlay to locate these jumpers:
The following table shows the jumpers' positions to choose between different port modes:
Mode
RS232 (4 wi re)
RS485 (no termi na ti on)
RS485 (120Ω termi na ti on)
RS422 (no termi na ti on)
RS422 (120Ω termi na ti on)
www.mtx-terminals.com
JPc1 JPc3
JP 1-2: Open
JP 3-4: Open
JP 5-6: Cl os ed JP 1-2: Open
JP 7-8: Cl os ed
JP 1-2: Open
JP 3-4: Open
JP 5-6: Open JP 1-2: Cl os ed
JP 7-8: Open
JP 1-2: Cl os ed
JP 3-4: Open
JP 5-6: Open JP 1-2: Cl os ed
JP 7-8: Open
JP 1-2: Open
JP 3-4: Open
JP 5-6: Cl os ed JP 1-2: Cl os ed
JP 7-8: Open
JP 1-2: Cl os ed
JP 3-4: Cl os ed
JP 5-6: Cl os ed JP 1-2: Cl os ed
JP 7-8: Open
www.mtxm2m.com
MTX M2M® by MATRIX ELECTRONICA S.L.U
MTX-DIN Family
2015/10 v2.3
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