Gallagher T20 - Controller Wiring Diagrams

Page 9
Gallagher T20 Reader
Installaon Note
Document Code: 3E3140
Edion 3, April 2013
Make the connecons from the reader to either the Controller 3000-8R or 3000-4R
as shown:
PB1 and PA1... to... PB4 and PA4 (3000-8R)
PB2 and PA2 (3000-4R)
Gallagher Controller 3000-8R or 3000-4R
Group
1 V OUT 2 0 V 1 DATA 0 2 DATA 1 3 OUT 1 4 OUT 2
PB
PA
Posive Red Negave Black Reserved Orange Reserved Green Reserved Brown CDXIV TX White CDXIV RX Blue
Cardax IV Reader
Posive Red Negave Black Reserved Orange Reserved Green Reserved Brown CDXIV TX White CDXIV RX Blue
Cardax IV Reader
Note: Within each group, you cannot mix Cardax IV Readers with Wiegand Readers.
This is because connecng one Wiegand reader requires all four pins on plug PB.
For example, if you connect a Cardax IV Reader to Port 1 of Group 1, Port 2 of Group
1 can only connect to another Cardax IV Reader.