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FDS-23A Digital Serial Display 7 Segment

INTRODUCTION.
The FDS-23A is a Modular Serial Digital Display 2 Inch 1 Digit, 2 Color Direction Arrows. 
All the FDS displays communicate via serial communication by a regular pair wires, power supply of 18vdc Ground. 
This including blind buzzer and lift is here in floor .
The Indicator digits are programmable via Leeavís TST Portable Programmer. 
Arrows or lanterns and gongs can be chosen as the method to announce the arrival of the lift in response to a hall call. 
Distinctive up going and down going gong chimes are supported.
 

 
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