IBM System x3400 Type 7975 - Rear Panel Connectors

Rear view
The following illustration shows the connectors on the rear of the hot-swap power
supply models with optional redundant power.
Mouse
Keyboard
Serial 1
(COM 1)
Video
Parallel
USB 4
(RJ45) Ethernet 10/100/1000
(RJ45) Ethernet 10/100
(for Remote Supervisor Adapter II
SlimLine)
USB 3
NMI button
AC power LEDs
DCpower LEDs
Power cords
Serial 2
(COM 2)
40 System x3400 Types 7973, 7974, 7975, and 7976: Installation Guide