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Jumper functions
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Battery and Battery Holder
Jump
er
Name If connection made Default
J1 Enable transceiver This jumper allows to disable the console RS232 transceiver. Connection made =
console active
J2 Battery enable Supplies the real time clock with 3V from the battery (lithium coin cell battery,
G1) even if the board is switched off. This is for keeping time in the RTC.
Connection not made =
Backup battery disabled
J3 WLAN_DISABLE# Reserved for future use.
Disables the WiFi unit on the module.
Connection made =
WLAN disabled
J4 USER_LED2# Enables User LED2 (LE6) to show the status of this signal (lit if low). Connection made = User
LED2 enabled
J5 USER_LED1# Enables User LED1 (LE5) to show the status of this signal (lit if low). Connection made = User
LED1 enabled
Battery Holder Battery
Coin-Cell Holder for CR2477 Battery,
THT
Keystone 1025-7
Ettinger 15.61.252
Lithium coin cell, CR2477, 24mm,
950mAh
Panasonic CR2477
Renata CR2477N