What is the technical ingredient of a TW system?
1. Power System should consume no more than 70-80% of the total power available 2. Termination The Telex Audiocom power supplies are designed with a built-in state-of-the-art audio impedance generator that monitors the audio level and provides the impedance adjustment when new units are added to the intercom system to ensure constant system audio level and quality. *If the users choose another source of power (Local Power Option) like wall pack or any DC power source, an audio termination should be provided at the end of each line (channel). Figure 1 shows how the audio termination should be. 3. Cabling Use the standard Microphone cables For a more ideal connection, use twisted pairs of audio (XLR pins 1 & 2) preferably shielded with the shield connected to earth ground (dead shield) by connecting the shield to the connector shell (inside lug). Use third connector for DC power return. 4. AC Line Noise In an environment that has computers, lights, (especially neon) and other appliances
