4000 series video amplifier module with two side by side call buttons.
4000 Series disability friendly amplifier module. Module is available in mirror finish stainless steel or aluminium (Suffix /A for aluminium).
The module includes two call buttons, two back lit name plates, a dry contact change over relay lock output, timed push to exit input, speech volume controls, call tone generator, timed call tone, timed speech, timed lock and call progress LED's (Busy, calling, speak and door open LED's).
The module also includes a useful local door bell facility and can be used with the 311x range of telephone or if privacy of speech is required, with the 312x range of telephones.