Control Panel User Manual
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3.7 Relay Output Connection
C3-100 has two relays (one used as a control lock by default, and the other used as
an auxiliary output); C3-200 has four relays (two used as control locks by default,
and the other two used as auxiliary outputs); C3-400 has eight relays (four used as
control locks by default, and the other four used as auxiliary outputs).
The relays for auxiliary outputs may be connected to monitors, alarms, door bells,
etc. Auxiliary outputs are set through relevant access control software. For details,
please see ZKAccess4.0 User Manual.
A lock relay can be connected in the dry and wet modes, while an auxiliary output
relay cannot. The following illustrates relay output connection with an example of
door connection.
1. An access control operator panel provides multiple electronic lock outputs.
The COM and NO terminals are applicable to the locks that are unlocked
when power is connected and locked when power is disconnected.
The COM
and NC terminals are applicable to the locks that are locked when power is
connected and unlocked when power is disconnected.
2. By setting the jumper terminal beside the lock relay, you can select the device
power supply or lock power supply for the lock (that is, the wet mode or dry
mode).
Dry mode jumper setting: short 1-2 and 3-4, ,and the device power supply
will be used for the relay output.
Wet mode jumper setting: short 2-3 and 4-5, and the lock power supply will be
used for the relay output.
Note: The factory default jumping is set as dry mode.
3. To protect the access control system against the self-induced electromotive
force generated by an electronic lock at the instant of switching off/on, it is