Dockable optical fiber transmission unit with 2x3G SDI for HD/3G cameras


The CAM RACER is a complete optical fiber transmission solution for camera connection for Outside Broadcast, Studio and Cinema applications. It is composed of a camera dockable transmitter, agnostic to any type or brand of Camera and a 1RU basestation receiver.

CAM Racer mounted vlock
CAM Racer mounted vlock

With two 3G-SDI channels, the CAM RACER can fit any camera from simple ENG to 3G professional sport devices making it suitable for any environment and ideal for rentals.

CAM RACER delivers 140 Watts to the camera. An automatic battery backup will help the remote powering system if more power is needed suddenly.

Signals control and Setup is done through internal web server. Most signals are also reported on LED display of each unit. An Oled display gives direct access to optical receiving levels and server IP address.

An internal audio mixer allows user to mix between talkback, programs inputs and local audio channels for Eng and Reporter headsets.

Camera control channel supports: Ethernet, RS422 Serial, Canon RC-V100 protocol (Enhanced Lanc).

Camera synchronization supports: Two composite video signals and one timecode.

Detailed description

The transmitter is fitted in a V-mount dockable unit which can be installed on any camera.
Red/green tally led are located on top of the unit.

A user panel feature LEDs for signal presence/activity, rotary button for volume adjustment and various level settings (sidetone, program1 / program2 listen level) along with push to talk commands.

Cooling of the unit is done by a small and silent fan located at the back of the unit.

CAM Racer TX (back)
CAM Racer TX (back)

The basestation receiver is integrated in a standard 19” 1RU format. All signals are dispatched on standard connectors and standard pinout at the rear of the chassis. (Web server is on a separate Ethernet port).

The front of the chassis is composed of a LED display panel indicating the status of each signals and technical alarms. An Oled display gives direct access to optical receiving levels and server IP address.

The basestation integrates a single mains power supply and two fans for thermal management.

Electrical Interfaces

There are 4 standard configurations of CAM Racer.
Each equipment assumes transmission of a comprehensive set of signals as follows:

  CAM Racer Lite CAM Racer CAM Racer 4K CAM Racer 8K
Dynamic range: 15 dB for control, 10dB for 12G channels
Connector: LEMO 3K (EDW / FXW) or NEUTRIK OpticalCon DUO
SDI Video HD to 12G        
Number: 1x3G 2x3G 2x12G + 2x3G 4x12G
Connector: 3G certified 75Ω BNC 3G & 12G certified 75Ω BNC
Standard: HD, 3G HD, 3G, 6G, 12G with 12G channels board
Amplitude: Input: cable equalization on all channels including 12G, Output: 800 mV pp / reclocked
Return loss: Better than: -15 dB for 0 to 1.5 Ghz, -10 dB for 1,5G to 3G, -6dB for 3G to 12G
Composite Video / GL        
Number, connector: 1 x 75Ω BNC from RX to TX 2 x 75Ω BNC from RX to TX
Standard: Composite video, Black Burst, Tri-level (Bi / Tri level auto sense)
Performance: BW > 5.8 MHz at +/- 0.2 dB, DgDp < 1%, < 1°, Group delay < 10 ns, SNR > 67 dB (CCIR567)
Analog Audio        
Number, connector: 2 bidirectional channels, XLR 5pins on camera unit, XLR 3pins on base station
Impedance: Input: 10 KΩ differential (non-floating), Output: 20 Ω differential (non-floating)
Amplitude:  +18 dBm maximum
Bandwidth: 50 Hz to 15 KHz at +/- 0.5dB, (20 Hz to 20 KHz at -3 dB)
Distortion: 0.05% at 1Khz / 0 dBm
Signal to noise ratio: 90dB, “A” weighted
Mic input
Input: Microphone input gain block on the camera unit
Mic input, Gain: From -12 to 40 dB, Tunable by 1 dB steps, Totally by-passable
Phantom power: 48 volts switchable, Source Impedance 6.8 KΩ
Number, connector: 1 from basestation to camera unit, 75Ω BNC
Number, connector: 1 bidirectional, Jack2.5mm
Protocol Standard LANC or RC-V100 remote protocol (5V open collector signaling)
Number, connector: 1 bidirectional channel, RJ45 2 bidirectional channels, RJ45 for Ch1, Hirose 12 for Ch2
Protocols, Data rate: RS485, RS422, RS232 from 0 to 500 Kbd/s
Number, connector: 1 channel, RJ 45
Protocols: 10 or 100 Mb/s, Full or Half-duplex (Auto sense), MDI or MDI-X (Auto sense)
Intercom / Tally        
Number: 1 Tally, 1 Intercom 2 Tally, 2 Intercom
Tally output: Relay (dry contact) shared with serial RJ45 (red) and Hirose 12 (green). Red/Green LED
Tally input: Contact or Voltage input. Shared on intercom D-SUB 25 pins with standard CCU pinout
Camera Intercom I/O: Any type of Headset Mic (Dynamic, Electret, Static) and Earpiece impedance (20 to 600 Ohms)
Basestation Inter. I/O: Line levels for Intercom and program input
Talk command: Pushbutton on cam unit, PTT input on RJ45 for pocket PTT switch (Talk latch release on basestation)
Connector: XLR 5 pins (intcom1), Hirose 12 pin (intcom2), Standard D SUB 25 pins on base (Tally, Intcom, PGM)
Power section        
Camera unit: 7 Watts for 2x3G basic device + Additional 3W for dual 12G channel option
Camera power capacity

(Standard 9.2mm SMPTE)

14.4V, 60W continuous 14.4V, 140W continuous, temporary unlimited with automatic battery backup. Decreasing for length over 450m (100W at 600m).
Battery plates: V-Lock or Anton Bauer
Basestation unit: 10 VA for the basestation (Additionally up to 200VA for remote power source)
Mains source base: From 90 to 260 VAC / 47 to 63 Hz
Camera unit: 155 * 145 * 44mm excluding connectors & plates (Add 13mm for power converter), weight 1,4kg
Basestation: 1 RU 19” rack, depth 250mm excluding connectors, weight 3kg
Operating Temp range: From -20 to + 60°C. (Avoiding direct sun exposition)