General Considerations
UNIDEX consoles use RJ45 connectors for many of their inputs and outputs, employing shielded CAT-5 multipair cable.
With the adoption of audio over IP (AoIP), the use of RJ45 connectors became standard, allowing multiple types of analog and digital connectors to be replaced by a single format. This simplifies installations and reduces the physical size of the consoles.
Structured cabling offers several advantages:
- A single type of cable is used for the entire installation.
- No soldering is required.
- It can carry analog signals, digital audio, or data.
To connect conventional audio devices (microphones, speakers, players, interfaces), adapter cables are used, going from a female RJ45 to the corresponding audio connector (XLR, TRS, RCA, etc.).
RJ45 connectors are reliable and durable only if the installation is done correctly.
- It is essential to avoid hanging cables that exert tension on the connectors.
- UDX adapters must be properly secured and not left loose inside the rack or on the table.
- It is recommended to use cable channels or conduits to organize the cabling.
- For long runs, use RJ45-to-RJ45 cable and a short adapter from female RJ45 to the required audio connector.
- Use good quality STP or SFTP structured cable.
Avoid mixing audio cables with AC power cables. To prevent interference and hum, they must run on separate paths.
If there is persistent hum and the grounding connections are correct, it may be due to RF standing waves induced by the FM antenna. In these cases, it is recommended to place ferrite beads on all cables entering the console.
