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Flintec FRD-45 LCD User Manual

Page 4

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FRD-45 BL Manual

page 4 of 8

ELECTRONICS

Interface, standard

RS-232, RS-422/RS-485 input and 20 mA Current Loop field
selectable
Baud rates: 1200-19200 with 7 or 8 databits;
even, odd or no parity

Optional interface

Analoge inputs, fieldbus interfaces, counters

Power requirements

24 VDC typically 60 mA with backlight
or 12 VDC typically 5 mA without backlight

Termination

9-pin male d-sub on the back; mating connector is DB9F


PIN Assignement








Programming Cable PIN Assignement

Pin 1 TTY-

Input negative 20 mA

Pin 2 TxD

Output connects to RxD on RS-
232 Host

Pin 3 RxD

Input connects to TxD on RS-

232 Host

Pin 4 Prog

Input Programming pin

Pin 5 0 V

GND on External Power and RS-

232 Host

Pin 6 TTY+

Input positive 20 mA

Pin 7 B-

I/O connects to RS-485/422

sender/receiver

Pin 8 A+

I/O connects to RS-485/422

sender/receiver

Pin 9 +V DC Connects to External Power