MPS12 / GL2400 PSU socket wiring:
pin 1 brown +15V
pin 2 blue -15
pin 3 black +10V
pin 4 gn/yel +48V
pin 5 braid gnd

RPS11 / GL2400 PSU socket wiring:
pin 1 +16V
pin 2 nc
pin 3 -16V
pin 4 chassis
pin 5 audio 0V
pin 6 nc
pin 7 nc
pin 8 nc
pin 9 nc
pin 10 +48V