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andyjay

Fujinon RS485 pan/tilt protocol

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Hi, I have a Fujinon CPT-70F-02A pan/tilt unit for use with broadcast cameras & lenses.

https://www.fujifilmusa.com/shared/bin/CPT-70F-02A.pdf

 

The control of the pan/tilt uses RS485 but lacks documentation beyond pinouts.

Does anyone know the flavor of RS485 used by Fujinon for pan/tilt control?

The RS232 and RS422 for cameras and lenses is better documented.

The Hirose 7-pin Control connector (RM12BRD-7PH) on the pan/tilt head

uses pins 1 & 2 for "CTL.A/SG" & "CTL.B/SG". I don't own the associated

Fujinon ESC-103K-04A power supply and EOP-102J-30E controller

otherwise I would be serial snooping the bits sent from the controller.

 

I have tried a joystick controller with various Camera ID, baud rates, Pelco-D, Pelco-S with no response.

Knowing the RS485 commands and structure used by Fujinon would be helpful.

I could try throwing random RS-485 binary/Hex at the device but the number of combinations would be in the billions. Thanks.

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Since no one ever responded I thought I would dive into detailing the process.

I had purchased the requisite parts through eBay for roughly $100 each. The ESC power supply and EOP controller were purchased for $50 each with $50 in shipping from Europe. The COMM cable was attached pin-for-pin. A terminated connector with pins 2&4 tied was attached to the second Comm port. A Sony VDC-5A or TecNec S7M-S7F or U-matic component cable can be used with the 7-pin JVC S-Video ports. All 7 pins must be connected--a U-matic Y/C cable will not work. Testing with a cheap multi-meter for continuity for each pin helps.

 

Wow! It works! I will need to CNC a custom 80mmx80mm baseplate with 3/16" x 1-3/8" bolts for the tilt unit when I decide to travel with it. The spacing between mounting holes is 65mm. A 3/8" threaded hole will be needed for my tripod. I'll try to come back and detail the serial RS232 & RS485 connections next.

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