sunair RT-9000C, Руководство по эксплуатации и обслуживанию

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Document No. 8128000560
Software Revision – N1B (07 Oct 04)
7-56
RT-9000 B
7.3.4.2 AUTOMATIC LINK ESTABLISHMENT (ALE) SET UP
7.3.4.2.1 GENERAL
All of the control functions to perform Automatic Link Establishment (ALE) to FED-STD 1045 interoperability
requirements are contained within the RT-9000 B Transceiver.
The ALE subsystem requires all ALE Network Operating Frequencies be entered and stored in Pre-set
Channel positions as described in Section 7.3.2.9. The Operating Frequencies may be stored in any order.
As a general rule, entering frequencies in order of most probable use may shorten ALE Linking times.
It is beyond the scope of this manual to define network structures and operating disciplines.
The ALE subsystem uses multiple frequencies stored in Pre-set Channels during normal operation and selects
the best one when communicating with other Network stations. These Channels are organized in Channel
Groups. A Channel Group is a group of frequencies that can be enabled under ALE Subsystem control and
have a common relationship.
A Channel Group may have up to ten (10) Channels. There can be up to ten (10) separate Channel Groups.
Channel Groups are identified by their Group Number, which is determined by first digit of the Channel
Numbers it contains. The following table illustrates how these groups are organized.
Channel Group Organization
Channel Number Group
Number
Lowest Highest
0 00 09
1 10 19
2 20 29
3 30 39
4 40 49
5 50 59
6 60 69
7 70 79
8 80 89
9 90 99