S2 - RESET -- DO NOT USE.
JP3 [CPU Daughter Board] - DO NOT REMOVE.
J4 [CPU Daughter Board] - RS-232
S1 [CPU Daughter Board] - RESET -- DO NOT USE.
Never Depress the S2 RESET button on the main controller or S1 RESET button on the CPU daughter board.
These buttons will interrupt power to the VLB without shutting down critical software processes and may render
the lite blue system inoperable.
READER 1 - Onboard Reader Interface (Wiegand / Magstripe)