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1 Introduction
The VR20M-MFand VR50M-MF are mullion-mount card readers with modern anti-hacking security over
OSDP and support for the traditional Wiegand protocol. When installed as part of a secure system over
OSDP, the communication from the reader or the controller they are connected to cannot be compromised.
The readers are made of hard wearing materials and will endure most weather conditions. The readers are
easy to mount and can be mounted on a flat surface. The readers can be cleaned with most kinds of
domestic detergents. All readers have a multicolour light frame. The VR50M-MF has a keypad for PIN
code.
© Vanderbilt 2021
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