HDCI

HDCI (High Definition Camera Interface) used in Polycom video conferencing systems. It uses a 60-Pin Low-force helix high-density connector interface.
Provides input for the main camera and second camera. These inputs support multiple formats in a single connector (Composite, S-Video, or analog Component YPbPr) and RS232 Serial PTZ control, using its own protocol (not Sony VISCA Protocol),
Pinouts.
 1 RS232 Rx
 2 RS232 Tx
 3 IR
 4 +12 V DC
 5 +12 V DC
 7 Ground - IR RTN
 8 Ground
 10 +12 V DC
 11 +12 V DC
 12 Pb / B Shield
 13 Pb / B 
 14 Pr / R / C Shield - CHROMA
 15 Pr / R / C ( pg 70 of Integrators's Reference indicates 15 is Shield and 14 is Chroma for SVideo input )
 16 Left Mic 
 17 Right Mic
 18 ARM Mic
 19 Center Mic
 42 A Ground
 43 A Ground
 44 Right Mic Shield
 45 Left Mic Shield
 46 Y / G / C Shield
 47 Y / G / C - LUMA
 48 P Ground
 50 H Sync
 51 V Sync
 52 H / V Shield
 58 P Ground
Cable end size.
Length to base of interface: 56mm
Length to end of plug: 62mm
Width of plug at base of interface: 41.5mm