CV-940 Series
Push Buttons
Keypads
Strikes
Magnetic Locks
Key Switches
Relays & Timers
Access Control
File: CV-940 Series
Installation Instructions.indd R1
Revision: 15/06/2015
Part No.: 40-82B174
Page 19 of 19
Questions? Call us toll-free at 1-877-226-3369
The Red Led on the Biometric Reader
is blinking all the time
There were 15 unsuccessful attempts of authentication (Finger or
PIN). The Red LED will turn off after the first accepted finger or PIN.
Enrollment from the desktop reader
can be done, but the Fingerprints are
not sent to all Biometric Readers in the
network
• Check the Ser.No of the Readers.
• Check if proper termination is done as described before
• Check if the Communication wires (A & B) are properly
connected to the reader
The Biometric Reader is not powered
ON. The tricolor LED is OFF.
Check the power Supply (red & black wire)
Fingerprint (or PIN Code) is recognized
(the tricolor LED is green), but the
controller reports other ID number and
the access is denied
• If the user is not deleted from the reader and the same user is
enrolled again with new ID, the reader will recognize the finger with
the first ID. To resolve this, delete all users from the reader and
upload all users to the reader
• Check the Wiegand Bus (yellow & white wire)
• Check if the ground of the controller and the Biometric
Reader is the same
• Check if the length between Biometric Reader and the
controller is less than 50m
Electro static discharge influences the
Fingerprint Scan.
Connect the housing of the Biometric Reader to the earth wire
Reader reading performance is
decreased
• Check if fingerprint reading area is dirty. Do not clean the
device with any form of liquid. Use soft and dry cloth only
Reading area is damaged. If the damage is minor, try to calibrate
the sensor
Fingerprint is not recognized normally
• Retry after drying the wetness of your finger
• When your finger is too dry, touch your forehead and try again
When you have a cut on your registered finger, register another
fingerprint
12. Troubleshooting
5502 Timberlea Blvd.,
Mississauga, ON Canada
L4W 2T7
www.camdencontrols.com
Toll Free: 1.877.226.3369
