The TRV-8/16PRC-RACK is a programmable video splitter designed to distribute, amplify, and correct video signals from 8 inputs to 16 outputs, according to user-defined configurations. By default, it operates as eight independent 1/2 video splitters. The device's configuration can be easily changed using a digital interface, with current settings and options displayed on an LCD screen. Users can select and modify operational parameters via an intuitive menu system.
There are 128 possible input/output configuration settings, allowing for flexible signal management. The splitter features individual gain control for each input, adjustable from -3dB to +6dB in 0.5dB steps, enabling precise signal level management to prevent overdrive or amplify weak signals. Additionally, the device offers cable length frequency compensation, maintaining high image quality even with long transmission cables.
SPECIFICATIONS
Number of inputs: | 8 BNC |
Number of outputs: | 16 BNC |
Bandwidth: | 0 to 40 MHz (without correction) |
Inputs impedance: | 75Ω |
Outputs impedance: | 75Ω |
Power: | 230V AC / 30mA |
Gain: | -3dB to +6dB (step 0.5dB) |
Cable length correction: | 0 to 600m (step 40m) |
Case type: | 1RU (19") |
Dimensions: | 44 x 490 x 120mm |
Weight: | 1.5kg |
Front panel view:
Top view:
Programming options are simple and intuitive, with all information displayed on the LCD:
Splitter configuration
The configuration menu is displayed on a two-line LCD. After powering on, the device name appears, followed by the main menu options: 1. Connections, 2. Amplifiers, 3. Correction. Use the UP/DOWN arrow keys to navigate and the ENTER key to select or change parameters.
Inputs/outputs connections (1. Connections)
In the Connections submenu, users can configure the multiplexer that links device inputs to outputs. Connections are graphically displayed, with the top line representing 16 signal outputs (8 pairs) and the bottom line representing the splitter inputs, which can be modified by the user.
- The UP arrow key switches among splitter inputs.
- The DOWN arrow key changes the state of a specific input.
- The ENTER key confirms changes and returns to the upper menu.
Configuration changes allow selection between the current video input signal and the last connected input. The image below shows two of the 128 possible settings:
- Default: each output pair is connected to the corresponding input (Pic. 1).
- Example: outputs 1 to 6 are connected to input 1, outputs 7 to 16 remain as default (Pic. 2).
Input signal amplification (2. Amplifiers)
The TRV-8/16PRC-RACK allows output signal level control (Pic. 3), enabling amplification for low signals or attenuation for high signals. The adjustment range is -3dB to +6dB in 0.5dB steps. 0dB means the output signal level matches the input. To configure amplification for a specific input, enter the Amplifiers submenu, select the input with the UP/DOWN keys, and adjust the value with ENTER. Settings are saved upon exiting the menu.
Pic. 3. Example of connected cameras with incorrect video signal levels
Frequency compensation for cable length (3. Correction)
The splitter features a built-in frequency compensation module to prevent video signal distortion over long cables (Pic. 4). Users can set the cable length for each input from 0 to 600 meters in 40m steps. This compensates for frequency loss and signal drop due to cable resistance. To configure, enter the Correction submenu, select the input, and adjust the value with ENTER. Settings are saved upon exit.
Pic 4. Example of cameras connected with long distance cables
Signal correction is crucial for long-distance video transmission, as cable attenuation can degrade image quality and sharpness. The active compensation method ensures clear and sharp images up to 600m, with virtually no visible difference from the source image.