Specifications

Power Source

24V DC, supplied from PS-2420UL

Power Consumption

Max. 0.9A

Capacity

Maximum 48 tenant stations per (25 per trunk)

Wire

2-conductor 18AWG, PE insulation

Wiring Distance

GT-BC to furthest tenant station: 980′

GT-BC to PS-2420UL: 33′

Mounting

Surface wall mount or DIN rail (W-DIN11)

Operating Temperature

0～40℃（32～104°F）

Dimensions

4-¼” H x 4-¹³⁄₁₆” W x 2-⅜” D

Weight

Approx. 0.99 lbs (450g)

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Specifications

Power Source

24V DC, use specified number of PS-2420ULs per system configuration

Communication

Hands-free

Capacity

Max. 16 entrance stations per system
Max. 4 video guard stations per system
Max. 500 tenant stations per system
Max. 4 tenant stations per unit

Wire

Two sets of 2-conductor, PE insulation (two common buses for audio and video)

• Aiphone #872002, 2-conductor PE insulated, non-shielded, 20AWG (audio)
• Aiphone #871802, 2-conductor PE insulated, non-shielded, 18AWG (video)

Wiring Distance

GT-BC to farthest entrance station: 980′
GT-BC to farthest tenant station: 980′
GT-VBC to farthest entrance station: 980′
GT-VBC to farthest tenant station: 500′

Mounting

Flush-mount: Use GF-3B back box

Surface-mount: Use SBX-GTDMB surface-mount box

Operating Temperature

-22° ~ 140°F (-30° ~ 60°C)

Dimensions

12-⅝” H x 5-⅞” W

Weight

Approx. 2.64 lbs (1.2kg)

The post GT-DMB-N Technical Specifications appeared first on Aiphone.

Specifications

Power Source

24V DC, PS-2420UL

Standby 75mA, Maximum 125mA

Wire

2-conductor, PE insulation

CAT5e/6

Wiring Distance

GT-MCX to power supply: 16′

GT-MCX to distribution point: 165′

GT-MCX to GT-VBC 165′
GT-MCX to GT-BC: 165′
GT-MCX to network switch: 330′

Protocol

IPv4, IPv6, TCP, UDP, IGMP, MLD, DHCP, NTP, DNS

Encryption

TLS 1.2

Mounting

Din Rail (supplied)

Operating Temperature

32° ~ 104°F (0° ~ 40°C)

Dimensions

8-¼” W x 4-¼” H x 2-⅜” D

Weight

Approx. 0.75 lbs (340g)

The post GT-MCX Technical Specifications appeared first on Aiphone.

Specifications

Power Source

24V DC, supplied from GT-BC

Communication

Hands-free or Push-to-talk

Capacity

Maximum 4 GT-1A tenant stations per resident location

Wire

2-conductor, PE insulation

Wiring Distance

GT-1A to distribution point: 980′

GT-1A to doorbell: 33′

GT-1A to emergency alarm switch: 49′
GT-1A to GT-RY: 33′

Mounting

Surface wall mount

Operating Temperature

32° ~ 104°F (0° ~ 40°C)

Dimensions

6-⅞” H x 4-¹⁵⁄₁₆” W x 1-¼” D

Weight

Approx. 0.70 lbs (330g)

The post GT-1A Technical Specifications appeared first on Aiphone.

Specifications

Power Source

24V DC, supplied from GT-BC

Communication

Duplex

Capacity

Maximum 4 GT-1A tenant stations per resident location

Wire

2-conductor, PE insulation

Wiring Distance

GT-1D to distribution point: 980′

GT-1D to doorbell: 33′

GT-1D to emergency alarm switch: 49′
GT-1D to GT-RY: 33′

Mounting

Surface wall mount

Operating Temperature

32° ~ 104°F (0° ~ 40°C)

Dimensions

7-⅞” H x 3-½” W x 2-½” D

Weight

Approx. 0.73 lbs (330g)

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The post Using Two GT-1C7 Stations per Tenant Location appeared first on Aiphone.

A number of things can cause this problem such as wrong ID, wrong wiring, no power, and more.

Solution

Here are a few solutions to try:

• Meter the R1/R2 terminal for voltage.  If you get no voltage, then the R1R2 wire is not connected to the GT-BC, or the GT-BC is not turned on.
• Multiple entrance stations or guard stations are all using the same ID.  Adjust the dip switches to ID multiple entrance/guard stations as ID1, ID2, ID3, and so forth. Make sure to cycle power to the GT-BC after making changes. Cycling power on the back of the GT-MKB-N or GT-DMB-N will not work.
• On an expanded system install, make sure the guard and entrance stations are wired into Common1 and not Sub1a.
• When using the Setup Tool to upload to the DMB/DB1 or MKB1, if the entrance station’s ID is set as #5, it will fail. Change dip switches to reflect ID1, then cycle power to the GT-BC.
• If you have a GT-MCX, then the entrance and guard station cannot be ID as #1 as the MCX takes that ID slot. Change the ID of the entrance or guard station as #2, then cycle power to the GT-BC.

The post Unable To Transfer From Entrance or Guard, or Transfer via Setup Tool appeared first on Aiphone.

Multiple entrance stations on the system none of which can enter programming mode. None of the entrance stations share the shame dip switch configuration and power to the GT-BC has been cycled.

Solution

On an expanded system, the 5 entrances can have their ID set as 1 – 8 and wired into Common1 of the BCXB-N.  If any of them are set as ID #9 or greater and wired into common1 of the BCXB-N, then that entrance station will fail as those ID numbers are reserved for an expanded system, which wires into Common2.

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