Tally Matrix 12x12 is a matrix switcher for the addressing of Tally signals that identifies the "on air" television cameras during a television shot.
With the Tally Matrix 12x12 is possible to manage from one only principal direction room the signal Tally of television cameras placed in more television studios.
The apparatus is realized in a metallic container tall 1 RU 19" with incorporated power supply.
The control keyboard is constituted by 12 buttons endowed with incorporated small LCD displays.
In the superior zone of every button it is printed the number of the output to it combined while on the relative display it is shown the selected input.
At switch on, the 12 buttons are green and they show the number of the input corresponding to the number of the printed output above the button (1 with 1, 2 with 2, etc...).

To change a combination input/output, to operate in the following way: press the key of the output to modify, the keys becomes all red ones and indicates the inputs from 1 to 12, only the button of the input selected in precedence is of green color.
Once that another entry has been selected, the new input-output correspondence is memorized in a memory eeprom. 
If after 7 seconds the user doesn't select a new entry, the apparatus returns in the sleep condition.  
Is possible unjoin all the output holding pressed the key 1 for more than 4 seconds, after this time on all keys will be written NC (not connected).
The inputs and the outputs are bidirectional and support a maximum current of 120mA at 125VAC (35VDC) voltage.

In accordance with constant improvement policy of products, El.Man (Elettronica Mangione) reserves the right to modify without notice and at any time, features and prices of its own apparatus.