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Technical precautions
• Operating temperature: Entrance Station: -10 °C to 60 °C
(14 °F to 140 °F)
Residential Station: 0 °C to 40 °C
(32 °F to 104 °F)
Security Guard Station:0 °C to 40 °C
(32 °F to 104 °F)
Control Unit: 0 °C to 40 °C
(32 °F to 104 °F)
• Mounting location: Do not install the entrance station in a
place where there would be a bright
light behind a visitor (or where there
would be a bright background) or in a
place where the camera lens would be
directly exposed to sunlight or a bright
light.
• Rain hood (option): Although the entrance station is
weather resistant, it is recommended
that it not be directly exposed to
weather conditions. The rain hood (GF-
H) can be installed to protect the
entrance station from rainfall.
• Post-replacement setup: After all wiring is completed and the
residential station has been replaced,
turn off the power to GH-BC
temporarily and then turn it back on.
Next, reprogram the relevant residential
station.
• Operation: When an entrance station is calling a
residential station, the call tone from
the doorbell button will not sound.
• Cleaning: Clean the units with a soft cloth
dampened with a neutral household
cleanser. Never use an abrasive cleanser
or cloth.
• Repair requests: When units do not operate properly,
request a qualified technician for repairs.
Specifications
• Power supply:
DC 24V supplied by PS-2410LC, PS-2410LD, PS-2410DIN
(for each GH-BC, GH-VBC, GH-NS/10K, GH-MK, GH-BCX/A)
• Current consumption:
GH-BC: 0.9 A, GH-VBC: 0.9 A, GH-NS: 0.13 A,
GH-MK: 0.18 A, GH-BCX/A: 0.45 A
• Call tone:
There are three different types of call tones:a call tone for the
entrance station, a call tone for the security guard station and
a call tone for the doorbell button.
• Communication path: Single path, non-open
• Communication:
Voice-actuated communication (or press-to-talk communication)
• Door release:
Connecting terminals: Between ELM-ELC (N/O) and ELB-
ELC (N/C)
Specifications: less than 4A (resistance load), AC/DC 24V,
dry closure contact for door release
• Wiring: Two single-pair cable
• Type of cables:
Pair cable (solid wire not stranded), polyethylene insulated,
diameter 0.65 ~ 1.0 mm
• Dimensions:
GH-1MD: 160 (W) x 210 (H) x 55.5 (D) mm
(6-5/16 x 8-1/4 x 2-3/16 inch)
GH-1AD: 125 (W) x 175 (H) x 32 (D) mm
(4-15/16 x 6-7/8 x 1-1/4 inch)
GH-1KD: 125 (W) x 175 (H) x 32 (D) mm
(4-15/16 x 6-7/8 x 1-1/4 inch)
GH-BC: 122.5 (W) x 108.5 (H) x 61 (D) mm
(4-13/16 x 4-1/4 x 2-3/8 inch)
GH-VBC: 122.5 (W) x 108.5 (H) x 61 (D) mm
(4-13/16 x 4-1/4 x 2-3/8 inch)
GH-4Z: 122.5 (W) x 108.5 (H) x 61 (D) mm
(4-13/16 x 4-1/4 x 2-3/8 inch)
GH-MK: 215 (W) x 210 (H) x 69 (D) mm
(8-7/16 x 8-1/4 x 2-3/4 inch)
GH-BCX/A: 210 (W) x 108.5 (H) x 61 (D) mm
(8-1/4 x 4-1/4 x 2-3/8 inch)
GH-VBX: 210 (W) x 108.5 (H) x 61 (D) mm
(8-1/4 x 4-1/4 x 2-3/8 inch)
Entrance Station
2 module, 2 row panel: 270 (W) x 225 (H) x 16 (D) mm
(10-5/8 x 8-7/8 x 5/8 inch)
(Box depth: 44mm (1-3/4"))
3 module, 1 row panel: 135 (W) x 320 (H) x 16 (D) mm
(5-5/16 x 12-5/8 x 5/8 inch)
(Box depth: 44mm (1-3/4"))
• Weight:
GH-1MD: Approx. 980 g (2.2 lbs.)
GH-1AD: Approx. 330 g (0.7 lbs.)
GH-1KD: Approx. 400 g (0.9 lbs.)
GH-BC: Approx. 450 g (1.0 lbs.)
GH-VBC: Approx. 250 g (0.6 lbs.)
GH-4Z: Approx. 190 g (0.4 lbs.)
GH-MK: Approx. 900 g (2.0 lbs.)
GH-BCX/A: Approx. 370 g (0.8 lbs.)
GH-VBX: Approx. 370 g (0.8 lbs.)
13
TECHNICAL PRECAUTIONS
14
SPECIFICATIONS