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Tesira device count limits

Tesira systems can incorporate a huge number of Tesira servers, expanders, and control devices, allowing Tesira to scale from small systems to the largest systems.  However, there are upper limits on the number of devices that can participate in a single Tesira system.  This article documents those device count limits.

For the purposes of this article, a Server refers to SERVER, SERVER-IO, or TesiraFORTÉ.  An Expander device refers to an AVB expander, like an EX-IN, EX-OUT, EX-AEC, or EX-MOD, TCM-1, TCM-1A, TCM-X, TCM-XA, TTM-X, AMP-450P, AMP-450BP, EX-UBT as well as a logic expander like the EX-LOGIC. A Control device refers to control interfaces like the TEC-1. Video refers to a TesiraLUX IDH-1 and OH-1 video input and output devices.

For installations that require more than the device limits allow, the system will need to be split in two or more independent systems on isolated network segments. When evaluating a Tesira system design, Biamp recommends using the Tesira software to validate the design and ensure sufficient DSP processing resources are available for the intended application.

Note that significant performance improvements were made in Tesira firmware version 4.2. Devices running firmware version 4.2 and later can proxy a larger quantity of devices.

Systems using firmware version 4.2 or later

The following device count limits apply to all Tesira systems, running firmware release 4.2 or newer:

  • Up to 128 Server, Expander, Video and/or Control devices, in any combination 
  • Up to 128 devices per network segment
  • Each TesiraFORTE X, Tesira SERVER and SERVER-IO can act as the proxy host for up to 64 Expander devices. 
  • Each TesiraFORTE can act as the proxy host for up to 32 Expander devices.
  • Each TesiraCONNECT TC-5D, TesiraLUX, Tesira XEL, and Tesira AMP can act as the proxy host for up to 64 Expander devices. Audio expanders require a Tesira processor with available network streams and DSP resources.  

Systems using firmware version 4.1 or earlier

Systems that use firmware versions earlier than 4.2 cannot support as many devices. Additionally, pre-4.2 firmware has different device limits for video-only systems:

All Tesira systems

The following device count limits apply to all Tesira systems, running firmware release 4.1 or earlier:

  • Up to 128 Server, Expander, Video and/or Control devices, in any combination 
  • Up to 128 devices per network segment
  • Each Server, Server I/O, or TesiraFORTE X can act as the proxy for up to 64 Expander devices in systems that do not include the TCM-1, TCM-1A, TCM-X, TCM-XA, TTM-X, EX-UBT, AMP-450P or AMP-450BP. 
  • Each Server, Server I/O, or TesiraFORTE X can act as the proxy for up to 24 Expander devices in systems that include the TCM-1, TCM-1A, TCM-X, TCM-XA, TTM-X, EX-UBT, AMP-450P or AMP-450BP. 
  • Each TesiraFORTE can act as the proxy for up to 32 Expander devices in systems that do not include the TCM-1, TCM-1A, TCM-X, TCM-XA, TTM-X, EX-UBT, AMP-450P or AMP-450BP. 
  • Each TesiraFORTE can act as the proxy for up to 12 Expander devices in systems that include the TCM-1, TCM-1A, TCM-X, TCM-XA, TTM-X, EX-UBT, AMP-450P, or AMP-450BP

Tesira systems with only TesiraLUX and Control devices

For systems containing only Video and Control or EX-LOGIC devices that are running firmware release 4.1 or earlier, the following device count limits apply:

  • Up to 128 Video, Control and EX-LOGIC devices
  • Each TesiraLUX can proxy up to 64 EX-LOGIC devices.

For installations that require more than the device limits allow, the system will need to be split in two or more independent systems on isolated network segments.

Further reading

Additional information regarding System Limits can be found in Tesira Help.

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