Raymarine ALPHA, Руководство по установке, Страница: 61 / 72

16.1 Physical specification
Specification
Width:
• Alpha 7 display — 118.6 mm (4.67 in)
• Alpha 9 display — 148.9 mm (5.86 in)
Height: • Alpha 7 display — 188.4 mm (7.42 in)
• Alpha 9 display — 235.9 mm (9.29 in)
Depth: • Alpha 7 display — 32 mm (1.26 in)
• Alpha 9 display — 34 mm (1.34 in)
Port separation distance:
5.71 mm (0.22 in)
Weight: • Alpha 7 display — 0.72 kg (1.59 lbs)
• Alpha 9 display — 1.18 kg (2.60 lbs)
16.2 Power specification
Specification
Nominal supply
voltage: 12 V / 24 V dc
Operating
voltage range:
10.8 V to 32 V dc
Current: • Alpha 7 display — 0.84 A (nominal) @ 12 V dc / 0.43 A
(nominal) @ 24 V dc
• Alpha 9 — 1.02 A (nominal) @ 12 V dc / 0.52 A
(nominal) @ 24 V dc
Power
consumption: • Alpha 7 display — 10 W (maximum)
• Alpha 9 display — 12 W (maximum)
Inline fuse
rating: 8 A
Thermal breaker
rating: 8 A
Important:
The suitable fuse rating for an inline fuse and thermal breaker is dependent
on the number of devices you are connecting. When connecting multiple
Alpha displays in a series (up to 4 maximum), ensure that
the fuse rating is
appropriate for the total power consumption of all daisy-chained Alpha
displays in your system
.
16.3 Network specification
Specification
Data connections:
1 x Daisy-chain connector.
1 x Power / RayNet Ethernet connector.
16.4 Environmental specification
Specification
Operating temperature range: -25°C to +55°C (-13°F to +131°F)
Storage temperature range:
-30°C to +70°C (-22°F to +158°F)
Relative humidity: 93% Max.
Waterproof rating:
IPx6 and IPx7
16.5 Display specification
Specification
Type: • Alpha 7 display — 7” IPS TFT LCD
• Alpha 9 display — 9” IPS TFT LCD
Brightness / Luminance:
1500 nits / 1500 cd/m
2
Viewing angles: • Portrait — 85 + / 85 +
• Landscape — 85 + / 85 +
Resolution:
• Alpha 7 display — 1024 (H) x 600 (V)
• Alpha 9 display — 1280 (H) x 720 (V)
Aspect ratio: • Alpha 7 display — 15.4 : 9
• Alpha 9 display — 16 : 9
Technical specification
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