GRAPHTEC GL840 User Manual page 32

CHAPTER 2 Checks and Preparation
(3) Close the SD CARD1 protective cover.
How to remove the SD memory card (SD CARD1 slot)
(1) Make sure that the SD memory card displayed on the screen is green, and then remove it.
(2) Open the SD CARD1 protective cover.
(3) The SD memory card is unlocked by pushing gently the SD memory card. Then, remove the SD memory
card.
The SD CARD1 is displayed in red while accessing to the SD memory card (Device Access display is
displayed in "red" and POWER LED is blinking.). Remove the SD memory card only when the SD CARD1 is
displayed in green.
How to insert the SD memory card (SD CARD2 slot)
Insert the SD memory card into the SD CARD2 slot.
When the optional wireless LAN unit is installed, the SD memory card cannot be inserted.
(1) Remove the SD CARD2 protective cover.
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Protective cover
Protective cover