AeroComm AC4424, Руководство пользователя

Страница: 35 / 43

AC4424 Specifications AC4424 Specifications AC4424 Specifications AC4424 Specifications
5 5 5 5////8/2007 8/2007 8/2007 8/2007 35 35 35 35
14,400 28h 00h F7h
9,600 3Ch 00h F2h
4800 78h 00h E5h
2400 F0h 00h CBh
1200 E0h 01h 97h
300 80h 07h 01h
110 74h 14h 01h
5.2.8 5.2.8 5.2.8 5.2.85.2.7 5.2.7 5.2.7 5.2.7 Network Topology Network Topology Network Topology Network Topology
RF Channel Number RF Channel Number RF Channel Number RF Channel Number – RF Channel Number provides a physical separation between co-located
networks. The AC4424 is a spread spectrum frequency hopping radio with a fixed hopping
sequence. Without synchronizing the different networks to each other, different channel
numbers could possibly interfere with each other and create “cross-talk.” To avoid cross-talk
interference, co-located networks should use Sync
Sync Sync Sync----to to to to----Channel Channel Channel Channel. A Server radio with Sync-to-
Channel enabled will synchronize its frequency hop timing to a system located on the RF
Channel specified by Sync Channel
Sync Channel Sync Channel Sync Channel. The only requirement is that Sync Channel be numerically
less than RF Channel. Therefore, every co-located network will be synchronizing to the
network with the lowest RF Channel. Three Channel sets are provided for the AC4424 (refer
to Table 10 below). Co
Co Co Co----located networks must use the same Cha located networks must use the same Cha located networks must use the same Cha located networks must use the same Channel Set. nnel Set. nnel Set. nnel Set.
Table Table Table Table 9 9 9 9 –––– US and International RF Channel Number Settings US and International RF Channel Number Settings US and International RF Channel Number Settings US and International RF Channel Number Settings
Channel
Set
RF Channel Number
Range (40h)
Frequency Range Countries
0 00h – 0Fh
2402 –
2478MHz
10mW, 200mW: US,Canada
3 00h – 13h
2406 –
2435MHz
100mW, 9AJ:
Europe,France,US,Canada
4 14h – 27h
2444 –
2472MHz
100mW, 9AJ:
Europe,US,Canada
Note: Note: Note: Note: The AC4424-100 & AC4424-9AJ are CE approved for use in Europe. The AC4424-10
and AC4424-200 are not CE approved and cannot be used in Europe.
System ID System ID System ID System ID – System ID is similar to a password character or network number and makes
network eavesdropping more difficult. A receiving radio will not go in range of or
communicate with another radio on a different System ID.