JLCooper eBOX - Manual (Page 49)

49
Older versions of the eBOX used DIP switches to configure the
the ports. In RS-232 mode, the RS-422 ICs must be mode of
removed. These ICs are marked 89C22.
Mode RS-232C RS-422A RS-422A
Direction To Computer To Deck To Controller
SW1 f f On Of Of
SW2 X On Off
Pin 1 not used not used not used
Pin 2 Transmit Receive A Transmit A
Pin 3 Receive Transmit B Receive B
Pin 4 not used Ground Ground
Pin 5 Ground Ground Ground
Pin 6 not used Ground round G
Pin 7 not used Receive B Transmit B
Pin 8 not used Transmit A eceive A R
Pin 9 not used not used not used
X = Don’t Care
Serial Port Configuration