SOLUTION SHOWCASE
Adding Security andCommunication to a
Historical Building(Residence/Office)
THE SCENARIOTHE SOLUTION

A building, originally constructed as a warehouse in the
19th century, held historical and architectural value. It
had been recognized as an industrial heritage andunderwent renovations around 2000 that preserved its
exterior while transforming it into residences, offices,and commercial facilities. Two decades after theserenovations, the existing intercom system installed
during the renovation suffered partial malfunctions andbecame inoperative. Consequently, the owners’
management association decided to replace the entire
intercom system and sought a prompt replacement.

To eliminate the need for rewiring and reduce theconstruction period, a bus-wired apartment intercom
system was considered. After inspecting the existing
wiring to ensure its usability, a bus-wired apartment
intercom system was proposed to the owners’
management association and received approval.

In response to the various demands of residents andtenants regarding intercom system —such as the desire
to answer visitors remotely using smartphones, confirm
visitors during absences, verify visitor identities byviewing their faces, and favoring a cost-effective anduser-friendly intercom operation—the owners’
management association desired a system with avariety type of intercom room stations.

For the entrance station, a stainless steel panel wasused, providing an impact protection rating of IK07 andan ingress protection rating of IP54. This ensured
water and dust resistance while maintaining a sleek
design.

Considering the building's location in a bustling
downtown area, the entrance intercom station facing
the street, it had to be sturdy enough to withstandvandalism. Additionally, taking into account theproximity of the waterfront, there was a request forweather-resistant models.
Furthermore, whenever residents/tenants move out orin, it was essential to have a straightforward method for
updating the entrance station with their names andchange the passcode to unlock entrance door. thedesire was for a system that facilitates these tasks
efficiently, saving setup time.

By selecting a system that could be connected tothe existing wire, the owners’ management
association avoided a lengthy construction period.

A range of room stations, including video stations withrecording functionality that can sync with smartphones,
simple video intercoms, and audio intercoms, met thevarious demands of the residents/tenants.

The system enabled easy transfer of pre-programmed
setting data to an entrance station equipped with an
NFC reader via a smartphone. NFC data transfer
saved work time, resulting in fewer inconveniences
during setting work.

SOLUTION SHOWCASE
Entrance

OfficeTHE BENEFITS

A stylish design entrance station with stainlesssteel panel fits for any type of entrance likehistorical or modern atmosphere.

・Bus wired system allowed much of the existing
wire to be reused, saving both time and cost・ Satisfying customers by allowing users tochoose from a wide variety of room station tosuit their needsResidence

・ Designed with vandal resistant and weather
resistant of the entrance station provided lessmaintenance costs
・ Employed with NFC technology allowed smart
data transfer, saving both costs and time, andreduced inconveniences of residents due toout of intercom service during setting work

System configuration Example
Video Apartment intercom
Video Entrance
Station,NFC reader
GT-DMB-N
Audio BusControl Unit
GT-BC
Video Bus
Control Unit
GT-VBCPower Supply
Adaptor
PS-2420
Video Distribution
Adaptor, 4-Way
GT-4Z

Entrance

Equipment Closet

Room(Residence/Office)OutsideVideo Room
Station,Wireless LAN
Picture Memory
GT-1C7W
Video Room
Station
GT-1C7

NFC

Wireless
LAN
Router

AiphoneCloud ServerVideo RoomStation
GT-1M3

Audio Room
StationGT-1A

Smartphone

Video Distribution
Adaptor, 1-Way
GT-1Z
SS6602AO

May 2024