Outputs
19
Siemens Building Technologies
Fire Safety & Security Products 07.2008
10 Outputs
10.1 Data Zero (D0)
z When the reader interface is configured to output Wiegand this outputs “Data
Zero”.
z When the reader interface is configured to output Clock & Data this outputs
“Data”.
z When the reader interface is configured to BCLINK that acts as a data line to
the door controllers.
10.2 Data One (D1)
z When the reader interface is configured to output Wiegand this outputs “Data
One”.
z When the reader interface is configured to output Clock & Data this outputs
“Strobe”.
10.3 Data Available (DA)
z When the reader is configured for output interfaces either Wiegand or Clock &
Data this signal becomes active 1ms before the data is sent, then released 1ms
after the data has been sent. The polarity of the signal is active-low.
10.4 Tamper Status
z When the reader is in the normal condition, the tamper terminals will give a
closed contact. When the tamper is activated the contacts are open.
z This is jumper selectable so that the contacts give a normally closed and nor-
mally open contact or, monitored with 10 kohms.
z When the reader is configured for BCLINK protocol, this sends the tamper
status digitally through the communication lines.
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