Videxsecurity 3111 Two Button Electronic Call Tone Handset

2 button handset for VX2200 systems. Features include a lock release button, service button and three position call volume control. Connects to the system bus via 2 wires with addional connects for a local door bell input and alarm output which can be used to signal the concierge of an event in the apartment. It has an 8 way dipswitch for programming and voltage free contacts for 2nd button. Can also be used a extension handset for 337xx monitors. Maximum of 3 devices per call button. Privacy of speech and lock is standard.  

• Handset for 2 Way Speech with Integral Release Button
• With Electronic Call Tone
• Handset to Suit 3K and DK Series Systems
• 3 Position Call Tone Adjustment
• Number of Cores: Four
• Finish: White
• Size: Height 218mm x Width 85mm x Depth 55mm

Terminal markings:

• L - Bus (7.5Vdc)
• - - 0V
• LB - Local door bell input switched 0V
• AL - Alarm trigger input switched 0V
• SW, SW - Dry contact service button