Hypertherm Phoenix 8.0 - Manual (Page 522)

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Serial Ports
Both of the serial ports that are provided are shipped in the RS-232C wiring
configuration. To change either port to an RS-422 configuration, you must change a
jumper setting on the Serial Isolation Board that is inside the CNC on the back panel.
Find the appropriate jumper for the desired port at the bottom of the board and move the
jumper from the RS-232C position to the RS-422 position. These positions are clearly
marked on the board.
Warning! Configure the port for RS-422 operation before connecting RS-422
compatible devises.
The serial ports in the CNC are specifically designed to operate with a standard nine-pin
serial port connector. Specifications for these ports are as follows:
Channel Type
Optically Isolated RS-232C or RS-422.
Information Code ASCII
Baud Rate User-selectable up to 115.2K baud.
Number of Start Bits 1
Number or Stop Bits 1
Word Length User selectable 7 or 8 bits.
Parity User-selectable None, Even or Odd.
Data Synchronization XON (Control-Q) / XOFF (Control-S).
Time Out User-selectable in one-second increments.
Transmit Delay User-selectable in one one/hundredths of a second
increments.
Rear Panel Connector IBM-PC/AT compatible 9-pin D-type female.
Control RS-232C DB-9 Pinout
Pin Signal Name Description
1 Shield Chassis ground
2 TxD Transmit data to external device
3 RxD Receive data from external device
4 No connection
5 Common Ground
6 No connection
7 No connection
8 No connection
9 No Connection