 | 20 watts of audio output. |
 | Transformer-isolated power supply, 48 volts DC internal voltage. |
 | Adjustable handset amplifier volume to match existing systems. |
 | Desktop powered by 18 VAC from a remote power supply. |
 | Magnetic off-hook switch. |
 | Sealed off-hook and page relays. |
 | LED off-hook indication. |
 | Noise-canceling microphone prevents ambient noise pickup and feedback. |
 | Transformer isolation of power, handset, and speaker lines. |
 | Short circuit protection of power transistors. |
 | Unitized design allows easy additions or changes to system. |
 | No amplifier gain increase when signal is not present. This reduces system
feedback and loading problems. |