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8 Board Layout
PC Comms
12v/5v
DC
IN/OUT
Reader 1
Door 1
Reader 2
Reader 3
Flash EPROM
Door 2
Reader 4
Door 3
Door 4
EXcel4 Controller
Anti-Surge Fuse 12v 1A
Ethernet Port
Communications
Switches
Communications
LEDs
RS485 Chips
Processor and UID
Reset Jumper
Memory Battery
Memory Battery
Jumper
Buzzer
Tamper Switch
(without spring)
Page 50
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