LB-20L building intercom marster station can simultaneous talk,group-talk or monitor all groups of 20 substations;

Functions and features:

LB-20L building intercom

1) Both master station and substation of this intercom system can initiate calls and talks

    Master station can listen-in/monitor substations;

2) Master station can simultaneously talk, group-talk or listen-in (monitor) all groups of 20

    substations;

3) Master stations have alarm signal output to horns and strobe lights;

4) With non-polarized N + 1 wires between master stations and substations

Technical Parameter:

Working voltage: DC12

Working current: 110mA

Static current: 60mA

Work environment term: -10oC~60oC

Remind: Music

Size of device:200x220x55mm