It is only recommended for installation by those comfortable with complex technical manuals and programming. Power 8 Zone Expansion Module Up to three can be added to max of 32 zones. Power eight Low Current Output Module Adds ability to control eight low-voltage 50mA outputs, each output programmable with fourteen different options . Power High Current Output Module Control four high-current 1A outputs, each output programmable with fourteen different options. Power Printer Module Attach any serial RS232 printer.
Intercoms can also broadcast burglar and fire alarm events.
Central monitoring station can activate all intercoms to conduct two way conversation or to listen in on any room. Two-way intercom, background music and room monitoring. Audio interface module required. 7505BES Power External Door Intercom Station Use externally at entrances to provide two-way intercom capabilities to visitors. Fully Supervised Module Add up to 32 wireless sensors.