Time And Attendance Readers - Interlogix CDC4 Installation And Programming Manual

Chapter 2: System functions

Time and attendance readers

The readers may be used for time and attendance functionality (clocking on and
off).
There can be up to 32 RASs (readers or keypads) on the CDC4 local buses
designated as time and attendance readers (see the "Time and attendance"
section on page 104).
Using RASs for time and attendance
If using card readers on the CDC4 data buses, the functionality is determined by
whether the reader is an IN reader or an OUT reader. IN readers are Clock On
readers and OUT readers are Clock Off readers.
Badging a card on a Clock On card reader automatically clocks you on. Badging
a card on a Clock Off card reader automatically clocks you off.
74 CDC4 Door Controller Installation and Programming Manual