i'
MASTER POWER SUPPLY
Pl = Power Monitor status.
P2 =
P3 =
P4 =
P5 =
I
Motherboard DC power bus outputs.
P6 = Power Regulator option harness.
P7 = Master Controller power.
P8 = System voltage and current indications (if meters used).
P9 = Standby Battery connection.
PlO = Signal power
Pll = Signal power
P12 = Signal
P13 = Signal
I-
Pin 1 = +24VDC.
power
Pin 2 = 24VDC COMMON.
power
P14 = Battery voltage and current indications (if meters used).
P15 = Remote Secondary Power LED and Sounder (tone alert).
P16 = Australian Battery Harness connector.
P17 = External charging resistor connection.
TBl = +24 VDC for external connections.
TB2 = 120 VAC operating power.
TB3 = 120 VAC supervisory power (if used).
TB4 = 24 VAC input from power transformers.
DISPLAY BOARD
Pl = PC board/LCD connector.
P2 = PC board/Master Controller Board interface.
P3 = PC board/Keypad connector.
SYSTEM COMPONENTS, DETAILED DESCRIPTIONS
MASTER CONTROLLER BOARD (562-771)
Controls and supervises all system modules. The board itself includes:
l
Zone Circuits 1 thru 8
l
Signal Circuits 1 and 2
l
Auxiliary Relay Circuits 1 and 2
l
Feedback Circuits 1 and 2
l
Fuses for the above circuits
l
The System Trouble Relay output
l
The CPU Reset Switch (push button)
l
A “trouble on this board” LED
l
The System Piezo (tone alert)
l
Local Annunciator interface (via a built-in 64/64 LED/Switch Controller)
l
City (Connection) Circuit.
NOTE:
The 15 circuits described above represent the number of points available in a basic 4100 Fire Alarm
System.
COMPONENT LOCATIONS AND FUNCTIONS
(FIGURE 2)
LED1
Lights if there is an on-board trouble, or if forced ON during tests.
3
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