STATE MASK

If a bit is on in the STATE MASK byte, the state it represents is adopted by the device if the corresponding bit is also on in the STATE VALUE byte.

0 USER
User mode. Turn the yellow light on if the same bit is on in STATE VALUE.
1 LOCK
Locked/Unlocked. If locked, MSR input is inhibited.
2 AUTO
Autoenter on/off. If set on, any card read by the MSR causes an ENTER operation. If off, only a secure card causes an ENTER.
3 Ai1S
Suppress audible alarm 1.
4 Ai2S
Suppress audible alarm 2.