Ericsson SPR1100 Operations Instructions Page 34

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Introduction
1.6 Rear Panels
The paragraphs below summarize the features of the main models and show the
rear panels.
Details of the rear panel connectors are given in Chapter 2, Installing the
Equipment.
1.6.1 SPR11/CHASSIS/1AC – 1U Unit with Single AC Power Supply
This Ericsson SPR1100 model consists of a base chassis, provides a single AC
power input and enables up to six Media Processing Modules to be fitted.
Figure 1.6 SPR11/CHASSIS/1AC Rear Panel – Single AC Input
AC Input
Slot 2
Slot 1
Data Ethernet x4
Control Ethernet x2
Slot 4 Slot 6
Slot 3 Slot 5
1.6.2 SPR11/CHASSIS/2AC – 1U Unit with Dual AC Power Supply
This Ericsson SPR1100 model consists of a base chassis, provides dual AC power
inputs and enables up to four Media Processing Modules to be fitted.
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 two
separate chains ensures reliability of supply and, therefore, continuity of service.
Figure 1.7 SPR11/CHASSIS/2AC Rear Panel – Dual AC Inputs
Dual AC In
p
uts
Slot 2
Slot 1
Data Ethernet x4
Control Ethernet x2
Slot 4
Slot 3
2/1553-FGC 101 1400 Uen B
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