Service Processor Card Locations
J1 JTAG connector to system rack
J2 Serial port connector to inside bulkhead card
J3 Speaker connector
J4 Diskette drive connector
J5 Parallel port connector
J6 Keyboard/mouse connector to inside bulkhead card
J16 Write protect DASD FLASH (if jumper is on pins)
J17 Operator panel connector from the system rack
J18 Test Port 0
J19 Test Port 1
J20 Test Port 2
J22 Write protect boot FLASH (if jumper is set between pins 2 and 3)
Appendix D. Cabling the System Rack and I/O Rack 55