Stainless Steel, Hands free, Entry Phone with dialer and programmable timeout. Designed to provide quick and reliable hands-free communication and can be connected directly to a C.O. line or analog PABX/KSU station. Features non-volatile memory, a built in dialer, and intelligent call progress detection for automatic hang-up when the call is completed. Hands-free Entry Phone can be programmed to dial a second number on ring no answer or busy and can be configured to dial these two numbers until answered.
Includes weather-sealed trim pots and DIP switches, a special rubber microphone boot and a mylar speaker with a rubber gasket acting as a primary shield against water penetration. If required, face plate gaskets are provided to further eliminate water infiltration. All connections are hand soldered to eliminate corrosion, and the connections at the push button switch, microphone, and "Call Connected" LED are also hand sealed using a special non-corrosive electronics grade flexible silicone sealant.
The entire circuit board is "potted" in a flexible urethane encapsulating material, leaving the weather sealed field-adjustable trim pots and DIP switches accessible for on-site programming. The flexible urethane sealant allows the circuit board and its components to expand and contract, while maintaining weather resistance. To protect the tip and ring connections, special connectors filled with anti-corrosive sealing gel are included.