Keyscan CA250B Technical Instructions page 93

6005 do not use the brown wire with "00" LED. If readers are single LED type "06", substitute the brown wire
in place of the orange wire.
 S16 – 5 ON dual LED = 00
 S16 – 5 OFF single LED = 06
C1 Beep
When the pre-alert wire is connected to C1 (Beep) on the reader terminal, the reader will also sound on
an "alarm tripped".
Keyscan Inc. – Technical Guide (PC109x - 04.15) 93