AT-4/868 UHF
FAAC S.p.A. Via Calari, 10 – 40069 – Zola Predosa (BO) - Italy
Page 13 of 25
3.5.2
DISABLED READING
AT-4/868 UHF reading can be completely disabled by means of the RDIS input.
This input is commonly used together with a sensor (e.g. with a magnetic loop)
that detects the presence of a vehicle. Use a voltage-free contact to connect the
5V to the RDIS input. When the RDIS input is open, the reader is active.
Connections:
RDIS
Disabled reader input
5V
Internal 5V
Important:
Using an external power pack for 5V can damage the reader.
RDIS
Fig
.
12
: RDIS