TN761 Stratus Fixed Infrastructure Radio System
MT-4 Radio Systems
TECHNICAL NOTES
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TN761, REV 1-0-0, © Aug 2016
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A Stratus Fixed Infrastructure Radio System supports analog and transparent P25 digital (clear or secure) repeat
capability and incorporates a Sierra Wireless cellular modem to backhaul P25 Digital Fixed Station Interface (DFSI)
compliant signalling across existing cellular 3G or 4G Long Term Evolution (LTE) infrastructure. The cellular
backhaul can be used to interconnect multiple Stratus repeaters / base stations to each other, or to P25 DFSI
compliant consoles. This interconnectivity is achieved via a Stratus controller which acts as an arbitrator for multiple
DFSI interconnects.
Up to four Codan UIC controllers can be linked to a single Stratus Fixed Link Infrastructure device at each site,
enabling multiple systems to take advantage of the Stratus Fixed Infrastructure capabilities.
Stratus Fixed Infrastructure can be easily added to existing MT-4E equipment by the addition of a Stratus Fixed
Infrastructure upgrade which includes the UIC card, DFSI fi rmware, and the Stratus Fixed Link Infrastructure
equipment which includes full cellular capability (modem and antenna) and a 4-port ethernet switch.
Stratus Fixed Infrastructure provides the opportunity to remove the dependence on costly leased telco lines and T1
connections at a fraction of the cost.
The current draw of the Stratus Fixed Link Infrastructure (not including MT-4E) is 500 mA to 750 mA @ 13.8 VDC
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