Pyronix ATLAS 8 - Power Connections; Connections; Battery Connections; Bell, Strobe and Extension Speaker Connections

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10 POWER CONNECTIONS
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10.1 Connections
The Atlas 8 requires a supply of 17V a.c. from the power supply unit or transformer, with a current capacity of 1 amp.
Connect the 17V current to the terminals marked 17~ on the PCB.
17V a.c
10.2 Battery Connection
In order for the Atlas 8 to operate if the mains power is cut a battery back-up is required. Refer to 10.5 for battery
specifications. Connect the battery to the terminals marked +BAT- on the PCB.
Battery Positive (+)
Battery Ne
g
ative (-)
10.3 Bell, Strobe and Extension Speaker Connections
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Bell Positive (+)
Bell Trigger
Strobe Positive (+)
Strobe Ne
g
ative (-)
Speaker Positive (+)
Speaker Ne
g
ative (-)
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NOTE: The bell Negative (-) should be returned to the BAT (-) connection on the PCB. 
The bell tamper must be connected to a tamper zone or connected as end of line zone.
10.4 Remote Keypad ‘RKP’ Connections
Keypad Data
Keypad Positive (+)
Keypad Negative (-)
If more than one keypad is to be used, additional keypads can be wired in either daisy chain or star configuration.
The RKP tamper must be connected to a tamper zone or connected as end of line zone.