MASTER TO SUB COMMUNICATION

• 12V DC, 300mA per station. *Use PS-12C power supply
• Subs call in with call tone and LED, 20 sec.
• Depress station button with lit LED. Press to talk, hands free reply.
No LED annunciation between masters.
• Hands free reply from responding master.
• *800mW receive at 20ohms. 500mW transmit at 20ohms.
• 30V DC, 0.1A (resistance load).
• 12V DC, 300mA.
• Use shielded multi-conductor wire, not twisted pairs.
• 2 conductors per sub, homerun (single master system), or 3 conductors per sub (multi-master system). (Use Aiphone #822202 or #822203.)
• 650' with 22AWG, 1600' with 18AWG