Lowtech Studios slither.io Operator's Manual page 11

slither.io
TM
You can choose to use 1 or 3 card readers in the pricing adjustments section of the test menu. It is
recommended to use 3 card readers for best results and player access.
There are (3) supplied UCL connections, each located under the control panel near the player positions. There
is enough slack to accommodate mounting (3) card readers on the control panel, as shown below, or on the
front panels, as each operator desires.
If only (1) card reader will be used, it is recommended that the card reader be mounted to the coin door as
shown below, using Player 2 UCL connector due to its proximity to coin door, although any UCL connector
can be used.
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