DB25 (CRAFT) connector
pin 1 Chassis ground
pin 2 RxDA, 68692 channel A receive
pin 3 TxDA, 68692 channel A transmit
pin 4 CTS, 68692 IP0 ← This is added as an engineering change
pin 5 RTS, 68692 OP0
All other pins are no connect
Null modem from DB9 to CRAFT (DB25)
DB9 DB25 2 ———————- 3 3 ———————- 2 7 ———————- 4 8 ———————- 5 5 ———————- 7