LEM Open Voice Master Selective Intercom System is a single master system with 1- and 3-call master stations. Works with “LE” style door and inside sub stations.

Single-master open voice communication

• 1 or 3-call masters
• 2 conductors per sub, homerun
• Voice or tone call
• Desk or wall-mount use
• Handsfree remote reply at sub

1. Datasheet - AIPHONE LEM-1

Device	Master Station
Type	1-Call