Redback A 4595A Operating Manual page 7

12 Audio Out RCA Connectors
Connect these outputs to the input of the PA amplifier.
13 RJ45 connector
This RJ45 ports is for future peripheral devices.
14 RJ45 connector
This RJ45 ports is for future peripheral devices.
15 Pre-Bell Contact
These contacts are for remote triggering of the Pre-Bell tone. This is the tone usually played before the main
school Bell.
16 Bell Contact
These contacts are for remote triggering of the Bell tone. This is the tone usually played for the school Bell.
17 Aux MP3-1 Contact
These contacts are for remote triggering of custom tone 1. There are three contacts for user custom tones.
18 Aux MP3-2 Contact
These contacts are for remote triggering of custom tone 2. There are three contacts for user custom tones.
19 Aux MP3-3 Contact
These contacts are for remote triggering of custom tone 3. There are three contacts for user custom tones.
20 Micro SD Card Socket
This socket holds the Micro SD card which is used to store all the tones or audio MP3 files.
21 Dip Switches
These are used to select various options. (see section 3.6 for more details).
22 24V DC Input (Backup)
Connects to a 24V DC backup supply with at least 1.5 amp current capacity. (Please observe the polarity)
23 24V DC Input (Main Supply)
Connects to a 24V DC supply with at least 1.5 amp current capacity. (Please observe the polarity)
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Redback® A 4595A School Lockdown Controller
Redback® Proudly Made In Australia 7