20
Installation
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By connecting a slave device with an RS-485 cable, you can use BioStation 3 as a control system for multiple
doors. The slave device is used as a dummy reader and authentication is performed by the master device.
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If a fingerprint scanner is configured as a slave device for BioStation 3, another BioStation 3 cannot be added
as a slave device.
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If the fingerprint scanner is the master device, BioStation 3 cannot be added as a slave device.
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If BioStation 3 is the master device and BioStation 3 is connected as a slave device, only one BioStation 3 can
be added as a slave device.
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If BioStation 3 is the master device and BioStation 3 is connected as a slave device, Secure I/O 2 and DM-20
(one of each) can be connected additionally.
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If BioStation 3 is the master device and BioStation 3 is connected as a slave device, OM-120 cannot be
connected additionally.
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The maximum number of slave devices that can be connected depends on the authentication method,
number of users, and number of devices. The number of slave devices may affect authentication speed.
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The master device can control up to thirty-one (31) slave devices. The RS-485 bandwidth allows up to 7
fingerprint scanners to be connected.
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For more information, please contact Suprema Technical Support Team (
).
