The R850 appliance provides failover capabilities for digital (T1, E1, J1, PRI, BRI) circuits. Lines from the telephone company are terminated to the R850, which then delivers service to Digium interface ports on the active server.

R859 Failover Appliance

In the event of a hardware or software fault on primary, the R850 redirects all circuits to the backup. Control signaling is handled via USB ports which also provide power to the R850, saving energy over the lifetime of the appliance.

Applications

The R800, combined with clustered primary and standby Asterisk servers, provides a fully redundant communications solution. Lines from the telephone company are terminated to the R800, which then delivers service to Digium interface ports on the active server. Third-party applications monitor the health of the primary server and provide mirroring of the Asterisk config files.

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In the event of a hardware or software failure on the primary Asterisk Server, it will be removed from the cluster and the R-Series is instructed to move the PSTN circuits to the standby. The standby server will assume the role of primary within seconds and without loss of services such as voice mail, phone registrations, etc.

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Specifications

  • 8-Port Digital T1/E1/PRI/BRI Failover Appliance
  • Supports eight (8) public switched telephone (PSTN) circuits
  • Supported Digital Boards: All 1-, 2-, 4- and 8-port TE Series, B410P and Hybrid Cards (BRI)
  • Size: 1.72 x 5.84 x 15 inches
  • Weight: 3lb 12.6 oz
  • Style: 1U Rack mount (brackets included)
  • Temperature: 0 to 50° C (32 to 122° F) operation; -20 to 70° C (4 to 158° F) storage
  • Humidity: 10 to 90% non-condensing
  • Warranty: One (1) year parts and labor, Digium Exceptional Satisfaction Program (ESP)
  • Automatic failover solution may require the use of two (2) USB flash drives (not included)

 

Documentation for R850 Failover Appliance

How to Buy

  • 1R850F - Eight (8) Span digital T1/E1/J1/PRI/BRI R-Series Failover Appliance

Where to Buy

local partner online retailer direct from Digium

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