User`s manual

CR-SEB
msec and is the default. 5 is the minimum value and 24 is the maximum value. The dwell
time is changed to optimize the data throughput for a given installation.
set selects a limited frequency band to be used. The default value is 1 which uses the entire
frequency. For operation in France use a value of 5, 6 or 7 and for Israel, use a value of 4.
The CR-SEB radio also has hop sets that avoid 802.11b channels. This allows the CR-SEB
to operate in environments with an 802.11b network without interfering with the 802.11b
network. The table below provides details of the hop sets.
Hop
Set
Frequency Range
802.11b Channels
Avoided
# of Channels
0 2400 – 2472MHz None 75
1 2448 – 2474MHz 1 – 6 & 14 25
2 2448 – 2474MHz 1 – 6 & 14 25
3 2471 – 2497MHz 1 - 10 25
4 2452 – 2477MHz 1 – 6 & 14 25
5 2400 – 2425MHz 6 – 14 25
6 2409 – 2435MHz 8 – 14 25
7 2419 – 2445MHz 1 & 10 – 14 25
8 2430 – 2455MHz 1, 2 & 11 – 14 25
9 2440 – 2465MHz 1 – 4 & 14 25
The frequency of the 802.11b channel avoided refers to the center frequency of the 802.11b
channel.
slave
list displays the serial numbers of the radios in the CR-SEBs that are currently registered
with the CR-SEB.
disconnect terminates the connection between the master CR-SEB and
the slave CR-SEB with the radio serial identification number entered. The radio serial
identification number must be entered with the “-“’s and can be found using
list.
sync These commands set the operation of the synchronization signal used in co-located CR-SEB
networks. The default mode is the sync OFF. Sync is enabled by selecting a synchronization
master. Synchronization will occur over the RS-485 SYNC lines. One co-located master
CR-SEB must be configured as the sync master. If sync has been enabled, the other co-
located master CR-SEBs will listen for a sync signal from the sync master. If no sync is
heard, a co-located master CR-SEB will make itself a sync master and provide a sync signal.
This is called the master backup override mode.
override toggles the master backup
override on and off. The default mode is ON. In standalone CR-SEB installations,
synchronization is not required and should be left disabled.
 2000- 2004 Cirronet Inc 23 M-2410-0025 Rev A