Model AF1000 3,4 ,5 and 6 Wire Amplifier The Pacific Electronics AF1000 is a versatile single entry model universal amplifier for use with 3,4,5 or 6 wire speaker type stations. The AF1000 provides amplification control, signaling, and power circuitry to operate a complete apartment intercom system. Wiring diagram is included with product This Pacific Electronics apartment station is a universal replacement for Pacific, Jeron, Tek-Tone, Mircon ans many more. Systems that currently do not have a Af-1000 amplifier installed may require rewiring.