The PTA12 Dialer/Adapter is a compact Dzus mounted telephone interface with a full function Touchtone keypad. Utilizing the 2 wire POTS (Plain Old Telephone Service) interface from the telephone, the PTA12 provides standard DTMF encoder (Dual Tone Multi Frequency) dialing capabilities.
The interface allows the flight crew to access the telephone system through the aircraft’s audio panel maintaining full headset operation. It can be used with many of today’s airborne telephone systems including cellular, Aero M/Aero I, and Globalstar™.
Additional features include elastomeric keypad, precision crystal controlled tones, reverse and over-voltage protection, RF filtering, and solid state switching. The backlighting is LED for high reliability and can be adjusted to match the lighting range of the aircraft’s other avionics controls.
Designed to be installation flexible, the PTA12 features several field adjustable settings such as mic, sidetone, DTMF and ringer output levels. Built to NAT’s usual high standards, the PTA12 has a solid chassis design with an aluminum bezel and utilizes surface mount technology.
Hook: Provides On/Off Hook function. A green LED illuminates to indicate an Off Hook condition. The LED also flashes to indicate an incoming call.
Hook: Mutes the mic and phones audio to allow the pilots to converse without being overheard on the telephone. A green LED illuminates to indicate that this function is engaged.
Redial: Remembers the last string of numbers dialed in case of busy signals or lost connections.
Flash: Field selectable to either 90ms or 600ms, the Flash is used to provide functions such as call transfer or call waiting when supported by the telephone system.
Volume: A digital controlled volume eliminates any mechanical devices for higher reliability. Using the Up and Down arrows, the volume level is adjusted and set to the desired level.
PTA12-100: Also has a 16 digit display and memory capacity for 16 phone numbers.
