Automatic interface ATM502T, with 2 inputs and 1 output.

Input 1:

• sensitivity selectable from 200 mV to 4.25 V (12 Vpp)
• automatic input activate either directly via the audio or via a normally-open external contact
• balanced input with transformer

Input 2:

• sensitivity 4.25 V (12 Vpp) for enabling via a normally-open external contact (active paging station or active digital players with closing contact "I")

Priority switch

• sequential priority of input 1 over 2, 2 over 1 or mixed
• chime warning signal volume control with on-off switch
• general output volume control 
• inputs with terminals
• standard active output 12Vpp, terminals +, L, -, I -
   

Power supply: 24 Vdc (power supply not included).

Requires PFK1 for rack installation.