ADS 5240 Operation Manual

Contents

ADS 5240 Operation Manual Manual pdf 10 page image

Page 10 of 16Input OptionsInput 1Input 1 has four options, each selected by a set of slide switches located directly below theinput socket. The option is turned on with the switch set in the upper position. The optionsare• VOX – allowing a Voice Operated Switch facility to be used. When thisfacility is turned on, any signal (such as speaking into a microphone) abovethe threshold level will cause all other inputs to be muted. When the signal isstopped, the other input levels will gradually be restored.• Phantom Power – providing 18Vdc phantom power on the XLR socket. Thisis often used to power external low current devices such as ElectretCondenser Microphones.• Chime – allowing the chime facility to be activated. If set, a two-note chimewill be heard through the loudspeakers when the priority terminals are closed.• Siren / Chime– allowing the siren or chime facility to be activated when thepriority terminals are closed. If set to the siren position, a siren will sound forthe duration of the closure of the priority terminals.Inputs 2–5Each of inputs 2 to 5 has two options selected by a slide switch located directly below theinput socket. The options are• Phantom Power - providing 18Vdc phantom power on the XLR socket. Thisis often used to power external low current devices such as ElectretCondenser Microphones.• Chime – allowing the chime facility to be activated. If set, a two-note chimewill be heard through the loudspeakers when the priority terminals are closed.Trim ControlAssociated with each input 1 to 5 is a trim control located below the input. This controlallows input sensitivity to be adjusted from 1mV to 200mV. Use this control to a suitablelevel for your input device (for example, a microphone will need this control to be at itsmost sensitive position).Output ConnectionsLine OutThe Line Out connector (see Rear Panel No.16 on Page 8) provides an output (1V) forconnection to slave amplifiers for larger systems where more power is required. Theoutput connections arePin 1 (Ground) Pin 2 (Signal)