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Installation
Stand-Alone Connection
The BioStation 3 can be directly connected to door locks, exit buttons, door sensors, etc. without connecting to a
separate I/O device.
1
2
Fail Secure Lock
Or
Fail Safe Lock
Exit button
Door sensor
PC
Hub
BioStation 3
DC power
DC power
Deadbolt /
Door strike
Connecting to a Relay
1 - RLY NO
Grey
2 - RLY COM
Blue
3 - RLY NC
Orange
Connecting to Power
1 - PWR +VDC Red (white stripe)
2 - PWR GND Black (white stripe)
TTL Connection
1 - TTL IN0
Red
2 - TTL IN1
Yellow
3 - TTL IN2
Orange
4 - TTL GND
Black
5 - SH GND
Grey
Cable shielding (optional)
TTL
Power
Relay
Sensor
For user convenience, Suprema's intelligent device has an independent built-in relay that can directly open or
lock the door without a controller. However, for access control applications requiring enhanced security, it is
recommended not to use the built-in relay, in order to prevent tampering that could potentially cause the door to
be unlocked. When using such access control applications, please use a separate relay such as Suprema's Secure
I/O 2, DM-20, or CoreStation installed in a safe location inside the door for lock control.
