User guide

S900 User Guide
f) User Access Control
In addition to acting as an attendance recorder, the S900 is also an
access control terminal.
Using the S900 with 3
rd
Party Door Control Panels:
WHEN THE S900 IS USED WITH A 3
RD
PARTY ACCESS
CONTROL PANEL, THE S900’S SOLE FUNCTION IS
VERIFYING THE IDENTITY OF THE USERS.
AFTER IDENTITY IS VERIFIED, THE S900 SENDS A 26-BIT
WIEGAND SIGNAL TO THE 3
RD
PARTY CONTROL PANEL
PROVIDING ONLY USER-ID MATCH CONFIRMATION.
IT IS THE 3
RD
PARTY PANEL AND NOT THE S900 WHICH
CONTROLS DOOR ACCESS IN THIS CONFIGURATION.
THEREFORE, WHEN USING THE S900 WITH A 3
RD
PARTY
DOOR CONTROL PANEL, REFER ALL ACCESS-RELATED
QUESTIONS TO THE 3
RD
PARTY CONTROL PANEL
MANUFACTURER AND NOT ZK SOFTWARE.
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