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6
Central Bearing Shaft/Tracking Arm/Spring Arm Wiring
6.1
Tracking Arm/Spring Arm
6.1.1
Tracking Arm/Ceiling Tube
The tracking arm has 5-pole wiring (without surgiCam®) or 9-pole wiring (with surgiCam®), with slip rings in
the ceiling tube (top of figure) and a rotary connector for spring arm connection. On the ceiling tube, the
leads are attached to connectors: power supply (L1–L4), surgiCam® video signals (Pr, Pb, Y), mLB (RJ45).
The VDC+ supply voltage for the mLB is taken from L1 (RJ45 input 1, pins 4 and 7 parallel).
RJ45 pin assignment
RJ45 Input 1
RJ45 Input 2