Dell 2130cn Service Manual page 870

Signal line name
Txd
Rxd
DUP UP_A
DUP UP_XA
DUP UP_B
DUP UP_XB
DUP DOWN_A
DUP DOWN_XA
DUP DOWN_B
DUP DOWN_XB
DUP CL ON (L) +24VDC
FAN +24VDC
FAN ALARM
Chapter 7 Wiring Diagrams and Signal Information
Control signal of the PWBA DUP
Drive control signal of the DUP MOTOR UP
Drive control signal of the DUP MOTOR DOWN
ON/OFF signal of the DUP CLUTCH
Drive control signal of the DUP FAN
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Description