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AR-B1375/AR-B1376 User s Guide
3-9
(3) Watchdog LED Header (J10)
1
2
LED+
LED-
Figure 3-19 J10: Watchdog LED Header
3.2.9 Power Connector (J3)
J3 is 8-pin power connector, you can directly connect the power supply to the on board power connector for stand
alone applications.
1
2
3
4
+5 VDC
GND
GND
+12 VDC
5
6
7
8
GND
-12 VDC
+5 VDC
-5 VDC
Figure 3-20 J3: 8-Pin Power Connector
3.2.10 External Speaker Header (J5)
Besides the on board buzzer, you can use an external speaker by connecting J5 header directly.
1
2
3
4
Speaker+
Speaker-
Speaker-
Speaker-
Figure 3-21 J5: External Speaker Header
3.2.11 External Battery
(1) Battery Charger Select (JP3)
JP3
Rechargerable Non-Rechargerable
(Factory Preset)
123 123
Figure 3-22 JP3: Battery Charger Select