CAM RACER LITE
Single 3G-SDI Dockable optical fibre transmission unit for HD / 3G cameras

Overview
CAM Racer is a complete camera fibre optic transmission solution for OB Van, Studio and Cinema applications. It comprises a camera dockable transceiver and a 1RU base station unit. The CAM RACER is designed to transport all needed signals in the same device on 2 singlemode fibers of a standard SMPTE cable.
Devices intended to be used with CAM RACER starts from single HD-SDI output camera to 4K models with 4 x 3G signals output. An intermediate CAM RACER is designed to transmit 2 x 3G signals for the growing demand of shootings with Canon C300/C500 cameras and supports the LANC protocol. The Lite version provides a single 3G-SDI.
Highlights
The CAM Racer Lite can deliver up to 140 Watts of power to the camera over 450 metres of standard 9.2mm SMPTE cable (100W at 600 metres). An optional automatic battery backup provides additional power in the case of a sudden increase in demand.
Signal control and setup is provided through an internal web server. Signal status is also reported on an LED display on each unit. The base station Oled display gives direct access to optical receiving levels and server IP address.
An internal audio mixer allows the 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.
Highlights
The CAM Racer Lite provides the following signal set:
- 1 SDI / HD / 3G signals from Camera (planned support for HDMI HD input),
- 1 Viewfinder HD-SDI from basestation,
- 1 Monitoring HD-SDI from the camera,
- 1 Genlock from basestation (Composite video / Black burst / Tri-level),
- 2 Bidirectionnal audio with mic preamp at camera side,
- 1 Talkback in/out with headset interface at camera side,
- 1 Time code from basestation,
- 1 Ethernet 10/100 Mbs,
- 1 Data RS 232/422/485,
- 1 LANC signal from basestation,
- 2 Contact closure from basestation.
The camera unit has talkback headset interfaces suitable for all types of mic (dynamic, electret, fully static) and any earpiece impedance.
An internal audio console enables talkback, local audio channels inputs, and program inputs to be mixed onto each camera unit audio output.
Dockable
The transceiver is fitted in a V mount dockable unit able to be installed on every camera. A red/green tally LED is located on top of the unit.
A user panel has LEDs for signal presence/activity, a rotary button for volume adjustment and various level settings (sidetone, program1 / program2 listen level) and push to talk commands.
Cooling of the unit is performed by a small and silent fan located at the base of the unit.
The base station receiver is integrated in a standard 19” 1RU rack frame. All signals are on standard connectors located at the rear of the chassis. (the web server is on a separate Ethernet port).
The front of the chassis has an LED display panel indicating the status of each signal and technical alarms. An Oled display gives direct access to optical receiving levels and server IP address.
The base station has an internal mains power supply and two fans for thermal management.
Optical
Dynamic range: | 15 dB for control and 3G signals, 10dB for 12G channels |
Connector: | LEMO 3K (EDW / FXW) or NEUTRIK OpticalCON DUO |
Video SD/HD/3G
Connector: | 1*3G certified BNC |
Standard: | SDI, HD, 3G for the Lite model (up to 12G for the standard CAM Racer) |
Impedance: | 75 Ω |
Amplitude: | Input: cable equalization on all channels, Output: 800 mV pp / re-clocked |
Return loss: | Better than: – 15 dB for 0 to 1.5 Ghz, – 10 dB for 1,5G to 3G, -6dB for 3G |
Composite Video / GL
Number, connector: | 1 from base station to camera, 1 BNC |
Standard: | Composite video, Black Burst, Tri-level ( Bi / Tri level auto sense ) |
Impedance: | 75 Ω |
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: 20Ω 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 |
Timecode
Number, connector | 1 from basestation to camera unit , BNC |
Impedance / Connector: | 75 Ω, BNC |
LANC
Number, connector | 1 bidirectional, Jack 2.5mm |
Protocol | Standard LANC or RC-V100 remote protocol (5V open collector signaling) |
Data
Number, connector: | 2 bidirectional channel, RJ 45 for Channel 1, Hirose 12 for channel 2 |
Protocols: | RS485, RS422, RS232 |
Data rate: | 0 to 500 Kbps |
Ethernet
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 |
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) |
Base st. Intercom 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 base station) |
Connector: | XLR 5 pins (intcom1), Hirose 12 pin (intcom2), Standard D SUB 25 pins on base (Tally, Intercom, 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, 140W continuous, temporary unlimited with automatic battery backup Decreasing for length over 400m, 100W remaining at 600m |
Regular option: | 8.4Volts 4Amps output for Canon devices on dedicated D-TAP |
Battery plates: | V-Lock or Anton Bauer (under development) |
Base station unit: | 10 VA for the base station (Additionally up to 200VA for remote power source) |
Mains source base: | From 90 to 260 VAC / 47 to 63 Hz |
Mechanical
Camera unit: | 155 * 145 * 44mm excluding connectors & plates (Add 13mm for power converter), weight 1400 grams |
Base station: | 1 RU 19” rack, depth 250mm excluding connectors, weight 3000 grams |
Operating / Material: | From -20 to + 60°C. (Avoiding direct sun exposure). Cases are built in Aluminium and Stainless steel |
- CAM-Racer side cover
- CAM-Racer mounted cover
- CAM-Racer side Vlock
- CAM-Racer mounted Vlock
- CAM-Racer Front (with 12G option)
- CAM-Racer Basestation front
- CAM-Racer Basestation back