11Step 4: Connect keyboard to computerAttach the 9-pin female (DB9F) RS232 connector with built-inDC jack to an available male equivalent (DB9M) RS232communication port on your computer. Provide power to theDC jack on the DB9F connector using either a cable connec-tion to the +12V DC power plate or an external adapter.Connect the 8 din male side of the RS232 cable to the rear faceof the keyboard. This 8 din port serves either keyboard wedgeor RS232 interface depends on the pin assignment. A descrip-tion of each pin can be found in Appendix III.External+12V DCPower Supply(Optional)Internal +12V DCPower SupplyRS232(DB9F)with DC Jacto COM portPowerPlateto PCSlot8001 and 8002 KeyboardPreparation for ProgrammingRS232(DB9M)to Port #1 onKeyboard8001 or 8002KeyboardPreparation for ProgrammingJarltech

JARLTECH 8081 Operation Manual