Carel easy way aria, Руководство пользователя, Страница: 40 / 44

40
GB
easy way ARIA +030220841 - rel. 1.0 - 26.10.2007
Maximum distance between Access Point and terminals/sensors in an •
open fi eld (outdoors): 100 m;
maximum distance between Access Point and terminals/sensors with
•
fi eld of sight (indoors): 50 m;
transmission frequency: selectable from 2405 to 2480Mhz;
•
number of channels available: 16 ; •
transmission power: 0 dBm; •
wireless protocol: ZigBee; •
physical layer: 802.15.4; •
reception sensitivity: -90 dB; •
maximum current: 35 mA; •
current in standby: 1 μA; •
domain levels: 7; •
maximum number of wireless network devices 199, of which: •
15 Access Point; –
184 ter sensors; –
maximum 5 repeaters in cascade connection;
•
maximum no. of devices connectable to each access point 60, of which: •
24 terminals/sensors connectable directly to the access point; –
8 Repeaters, connectable directly to the access point; –
24 terminals/sensors, connectable directly to each repeater. –
Example:
Fig. 7.a
Key:
Access Point 1st level dominion
Repeater 2nd level dominion
terminals/sensors 3th level dominion
7. WIRELESS FEATURES OF THE EASY WAY SYSTEM