Comrex BRIC-Link II, Руководство по эксплуатации продукта

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XI.
HOTSWAP
BRIC-Link II connec ons are able to u lize a feature called HotSwap HotSwap , which allows users running CrossLock in “Dual
Network” mode to designate a primary and secondary network. This secondary network (e.g., wireless 4G) serves
as a backup to the primary in case of network failure, but will remain dormant un l such failure occurs. A typical
usage scenario would be a codec that is ac ve 24/7 providing an STL connec on, using a metered backup network,
as shown in
Figure 64 .
4G o ff ers a unique advantage as a backup to hardwired connec ons, because the cause of any local network failure
is highly unlikely to also a ff ect wireless carrier towers. It is, however, imprac cal (and expensive) to run audio
over a 4G mobile network 24/7. HotSwap ensures that the CrossLock connec on priori zes a di ff erent network
(e.g., an Ethernet connec on). In this example, if the primary hardwired network fails, HotSwap would divert the
connec on to the secondary 4G network as a backup. When the primary network is restored, HotSwap will switch
back to it and return to holding the secondary network in a dormant state. Ethernet can be designated as either the
primary or the backup network. 4G connec on is supported on BRIC-Link II as the secondary, backup network only,
and only when using a
Comrex Connect Modem . BRIC-Link II does not support the use of other 4G or 3G modems.
Since HotSwap is an alternate mode of the CrossLock reliability layer, connec ons between codecs must be
established via CrossLock in order to use it (refer to page 48 for details on making CrossLock connec ons).
Note: Codecs on both ends of the link must be running fi rmware version 4.3 or higher in order to operate
HotSwap .
DATA USAGE
It is impera ve to note that even a backup network in a dormant state s ll u lizes a small amount of data. This is
important when considering using 4G mobile networks. For 24/7 opera on, this data will total less than 0.5 GB for
a typical month of usage, assuming no
HotSwap ac vity occurs. If the HotSwap func on engages to a 4G network,
much more data will be used while the primary network is down. Regardless of how HotSwap is used or set up,
Comrex assumes no liability for data overage charges, even in the event of so ware bugs or any other failure of
hardware or so ware. It is en rely the responsibility of the user to monitor any metered data usage.