Advantech ABDNA-ER-DP551 handleiding
Handleiding
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13
802.11a/g
54, 48, 36, 24, 18, 12, 9, 6
802.11n
up to 150Mbps-single
Table 9 - Operating Channels
Band
Region
Freq Range
(GHz)
No. of Channels
Channels
802.11b
1,2
US/Canada
2.401 - 2.473
11
1 – 11
Europe
2.401 - 2.483
13
1 – 13
802.11g
1,2
US/Canada
2.401 - 2.473
11
1 – 11
Europe
2.401 - 2.483
13
1 – 13
802.11a
2
US/Canada
5.15 - 5.35
13
36, 40, 44, 48, 52, 56,
60, 64, 149, 153, 157
5.470 – 5.725
8
100, 104, 108, 112, 116,
132, 136, 140
5.725 - 5.825
2
161, 165
Europe
5.15 - 5.35,5.47
- 5.725
19
36, 40, 44, 48, 52, 56,
60, 64, 100, 104, 108,
112, 116, 120, 124, 128,
132, 136, 140
*Contact Advantech if specific country or region support is required.
1. Only channels 1, 6 and 11 are non-overlapping.
2. Channel count denotes number of non-overlapping
channels.
Channels shown represent non-overlapping channel
numbers.
AC ELECTRICAL CHARACTERISTICS – TRANSMITTER
Transmit power is automatically managed by the device for minimum power consumption. The transmit
power at the RF connector is listed in Table 9 for 802.11a/b/g/n Modes.
ANTENNA
The unit features an I-PEX MHF 4 connector for attaching an antenna, positioned adjacent to the RF
shielding on the upper surface of the radio.
ANTENNA SELECTION
The Airborne radio supports a number of antenna options, all of which require connection to the I-PEX MHF
4 connectors on the radio. Ultimately the antenna option selected will be determined by a number of factors,
including consideration of the application, mechanical construction and desired performance. Since the
number of possible combinations is endless, p13-we will review some of the more common solutions in this
section. If your application is not covered during this discussion, please contact Advantech Technical
Support for more specific answers.
ANTENNA LOCATION
The importance of this design choice cannot be over-stressed. In fact, it can be the determining factor
between success and failure of Wi-Fi implementation.
There are several factors that must to be considered when determining location:
▪ Distance of antenna from radio
▪ Location of host system:
• Proximity to RF blocking or absorbing materials
• Proximity to potential noise or interference
• Position relative to infrastructure (access points or laptops)
▪ Orientation of host system relative to infrastructure:
• Is it known
• Is it static
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Productinformatie
| Merk | Advantech |
| Model | ABDNA-ER-DP551 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 15499 MB |
