Promi-SD 205-OA User Manual – 5. Specifications
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Copyright © 2006 Sena Technologies, Inc. All rights reserved.
Default Antenna
Type: Helical
Frequency: 2,400 ~ 2,485GHz
Gain: Max. 1dBi
1
Impedance: 50
size: 30mm 9mm (W D)
weight: 3.5g
Power Consumption
The power consumption varies according to the operation status of Promi-SD. The table below shows the average
measuring results in different operation modes with 1m communication distance.
Operation Status
Consumption
Promi-SD205 OA
Not plugged into Serial port
17mA
Plugged into Serial port
31mA
Inquiry Scan
106mA
Page Scan
106mA
Inquiry & Page Scan
64mA
Connected as Master device
60mA
Connected as Slave device
37mA
Connected in Park mode as Master device
33mA
Connected in Park mode as Slave device
32mA
Connected and Transmitting Data at 9600bps
66mA
Connected and Transmitting Data at 115200bps
80mA
The power consumption will be increased as the communication distance is getting longer, but never exceeds 106
in any case.
Wireless Coverage
The table below shows the average measuring results in open space. These results can vary according to the
environmental conditions.
Antennas for two Promi-SD units
Maximum Distance
(SD205 OA)
Stub Antenna Stub Antenna
100m
Stub Antenna- Dipole Antenna
150m
Dipole Antenna - Dipole Antenna
200m
Patch Antenna - Dipole Antenna
400m
Patch Antenna - Patch Antenna
1,000m