Reference Manual

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www.ConnectCore 9M 2443 & Wi-9M 2443 Hardware Reference.com 104

Jumpers

Jumpe

Name Description Settings

J1 Battery Enable Supplies the real time clock with 3V

backup power from the battery

(lithium coin cell battery, G1) if the

board is switched off.

Closed =

Backup battery enabled

Open = Backup battery disabled

J3 VLIO select Select VLIO power source (+3.3V or

VEXT JT)

Pin2-3 closed VLIO = on board 3.3V

Pin1-2 closed VLIO = power

connected to J10

J4 Port C/D select

RTS2/TXD3

Select RTS2 PortC or TXD3 PortD Pin1-2 closed= RTS2

Pin2-3 closed =TXD3

J5 VEXT External power Connector for external accumulator.

Pin1 = GND Pin2 = VLIO

J6 User LED1 User LED1 enable / disable Closed = User LED1 enabled

J7 Port C/D select

CTS2/RXD3

Select CTS2 PortC or RXD3 Port D Pin1-2 closed = CTS2

Pin2-3 closed = RXD3

J8 User LED2 User LED2 enable / disable Closed = UserLED2 enabled

J9 WLAN_DISABLE# Disables the WLAN interface on the

module (if present)

Closed = WLAN disabled

Open = WLAN enabled

J13 Debug LED Debug LED enable / disable Closed = Debug LED enabled

Open = Debug LED disabled