Sirius 800 www.snellgroup.com Module Maintenance
Issue 1 Rev 1 Page 49 © 2014 Snell Limited
6.3 Adding Input/Output Modules - Example
In some cases it is necessary to expand a Sirius 800 router while it is “On Air”. This section
describes the procedure that must be followed when adding input and/or output modules to a
router.
Equipment required:
• A Workbench client computer running Workbench and connected to the same LAN as
the router.
• Working Ethernet link to the router controller.
• Door PC with the standard touch screen alarm and router control interface.
Before Starting
To minimize the time the fan assemblies are open during the upgrade:
• Remove all of the modules from their packaging and lay them out in the order they will
be fitted.
• Sirius 840/850: plan to fit the input modules first followed by the output modules. This
ensures that the fan assemblies for each are open for the minimum amount of time.
• Read through the complete procedure before starting work on the router.
• Before adding modules to a Sirius 800 router check that the power supplies fitted
can supply sufficient power to the router. The router power requirements are
described in the appropriate Sirius 800 Installation and Quick Start guide.
• Although this is not a difficult task it is very important that these steps are followed
to minimize the risk of problems occurring during the upgrade.
• If the router is only fitted with a single controller it will not be possible to change
routes or processing while the controller is being updated.
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