The MS745 Master Headset Station is ideal for applications where a simple two circuit intercom system is required without the need for future expansion. If more facilities and intercom circuits may be required, the MS741 Master Loudspeaker Station and ME742 Master Loudspeaker Station Extender unit should be considered.

Each intercom circuit has its own individual power supply with short-circuit protection. All protection is electronic and automatic and no resetting is necessary following removal of a fault condition.The Master Headset Station can be operated world-wide without the need to change AC power supply settings.

Each intercom circuit (A and B) can power up to 25 Tecpro BP511 beltpacks. Circuit B may be linked to circuit A to form a single circuit supporting up to 50 beltpacks.

The operator listens and talks to other users via a headset and may speak to circuit A, B, or both by pressing the associated circuit select buttons. Both circuits remain independent and cannot communicate with each other (unless linked). External audio sources such as programme feeds, show relay or paging announcements can be mixed to either or both intercom circuits. The amount of auxiliary signal added is set using the 'Aux Level' control.

To keep communications circuits clear of background noise and chatter, due to microphones being left open unnecessarily, Series 2 Tecpro beltpack and user stations can be silenced remotely from the MS745 Master Headset Station by use of the 'Remote Mic Kill' facility.*

*Tecpro Series 2 products are backwards compatible with first generation designs with the exception of 'Remote Mic Kill' which applies to Series 2 products only.

Overview

• Compact 1U format
• Two independent intercom circuits, A and B
• Supports up to 25 Tecpro BP511 beltpacks per circuit
• Circuit B may be linked to A to form a single circuit supporting up to 50 beltpacks
• Front panel XLR4 input for headset
• Side-tone presets on front panel for circuits A and B format
• Mic amp limiting circuit protects against distortion and overloads
• Rear XLR3 socket 'Aux' Mic/Line input. Switchable 24V Phantom power on mic input
• 'Aux' programme material mixes to either or both circuits. Front panel 'Aux' level control
• Dual action 'Circuit Select' and 'Mic ON/OFF' switches with latching and non-latching modes
• DC and 20kHz 'Call' alert signal send and receive. Visual and audible 'Call' indication
• 24kHz 'Remote Mic Kill' send and receive
• Compatible with first generation Tecpro designs (except 'Remote Mic Kill')
• Power output 1.1A per circuit
• Short circuit and overload protection with indication on each intercom circuit

The Master Headset Station is fitted with a Universal Power Supply 90-260V AC, 50-60Hz and can be operated world-wide without the need to change AC power settings.