GeoVision GV-AS2120 IP Control Panel - Manual (Page 198)

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9.2.4.B Connecting GV-Readers and GV-GF Fingerprint Readers
You can connect up to
2 units of GV-Readers and GV-GF Fingerprint Readers
to GV-
ASNet. Multiple GV-Readers and GV-GF Fingerprint Readers can be connected with a
single RS-485 cable to the RS485 B+ and B- on GV-ASNet. You will need to connect the
GV-Readers or GV-GF Fingerprint Readers to external power supply.
The figure and table shows the pin assignments for related connectors.
Figure 9-11
Pin Function Pin Function
RS485B+
GV-Reader / GV-GF
Fingerprint Readers
Connection
RS485B-
GV-Reader / GV-GF
Fingerprint Readers
Connection
To define each GV-Reader and GV-GF Fingerprint Reader, you need to use the GV-AS100 /
110 / 120 Web interface. See
9.3.2.G Extended Reader
.