S
ETUP
Device Features
16
640
M
I
NSTALLATION
G
UIDE
Device Features
Familiarize yourself with the features before continuing with the installation
process:
Figure 2
640m Device
•
The 640m device has a color touch screen display.
•
A smart card reader, Contactless Reader and EMV.
•
A 3.5 mm audio jack to facilitate accessibility for the visually impaired.
•
Volume buttons to Increase/Decrease the volume.
SAM/SIM and TF
Cards
You may need to install one or more SAM/SIM and TF cards or replace the old
cards.
Installing or
Changing TF Card
To install or replace TF card:
1
Turn off the terminal.
2
Release the cover step (1) as shown in
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