Add-On 3-Call Master with Door Release

Receiving a Call from Another Master Station:

• When one master station calls another, the responding master answers hands-free (without tone or LED notification).
• The Occupied indicator remains lit while the initiating master has a station selected.
• To respond, simply speak—do not press any buttons.

Key Features:

• Supports up to 4 stations (mix and match master and sub-master units).
• LED and tone notification for incoming calls.
• Push-to-talk functionality for initiating calls.
• Hands-free communication at the responding station.
• Selective monitoring of stations.
• Selective door release capability.
• Adjustable voice and call tone volume controls.

Technical Specifications:

• Power Source: 12V DC, 300mA per station (compatible with PS-1208UL or PS-1225UL when used with BG-10C).
• Audio Output:
  • Reception: 800mW @ 20O
  • Transmission: 500mW @ 20O
• Talk Channel: Single talk path with Occupied LED indication.
• Wiring:
  • 5 common wires (E, R, Y, +, -) + 1 individual wire per station (looped).
  • For sub-stations: 2 wires homerun (single master) or 2 common wires (E, -) + 1 individual wire per station (looped or homerun).
• Relay Contact: RY-PA, normally open/closed, 1A @ 110V AC or 24V DC.
• Capacity: Supports up to 4 intermixable stations.
• Wiring Distance:
  • 650 ft with 22AWG
  • 1,600 ft with 18AWG
• Dimensions:7-1/16" H x 5-5/8" W x 2-1/8" D

This master station enhances communication flexibility in intercom systems, providing reliable, hands-free operation with essential features for efficient coordination.