Ericsson SPR1100, Handbook, Page: 24 / 256

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SPR11/CHASSIS/2AC 1U Base Chassis (Dual AC)
Overview
The Ericsson SPR1100 consists of a base chassis, dual AC inputs and up to four modules.
The base chassis is a 1 ‘RU’ 19" rack mount chassis that provides the control interfaces, and
two pairs of dual redundant Ethernet ports for data input and output.
The modules provide the video, audio and data processing functionality and can be ‘Hot
Swapped’, i.e. inserted or removed whilst the chassis is powered.
Why Have Two Mains Connectors
Many broadcasting sites have two power supply chains, either from the master switchboard
or, for major sites, from different points on the supply grid. As the most common cause of
system failure is loss of power, feeding the chassis from the separate chains ensures
reliability of supply and, therefore, continuity of service.
Dual AC PSU Base Chassis
Front Panel
SPR11/CHASSIS/2AC Front Panel Items
LCD
Control and status information is displayed on a 2 line by 40 character display.
Buttons
Six buttons are provided for navigating through the front panel menus.
Status LED