The EB-CWMK3 patch module is a component installed near the visiting room, enabling connection and power supply of the visiting room equipment.

Using the module reduces the number of wires needed to transfer audio signals between the viewing room and the control panel.

Operating parameters of the EB-CWMK3 patch module:

• Possibility to connect 3 headphones and two time display devices,
• Cooperation with headphones with a condenser and carbon (resistance) microphone,
• Power supply directly from the control panel without the need for a local power supply.