
16
2.3.7 RS485
Serial Wiring Method
ATTENTION: The cable length must not exceed 100 meters in total.
ATTENTION: When wiring more than 1 keyboard, please, make sure that the set address of each keyboard is dierent.
NOTE: You may connect only 1 EKB2/EKB3 keyboard or a mixed combination of EKB2 and EKB3 keyboards. The combination
can consist of up to 4 keyboards in total.
For more details, please, refer to chapters 7.1 EKB2 - LCD Keyboard, 7.2 EKB3 - LED Keyboard, 7.3 EPGM1 - Zone & PGM
Output Expansion Module
Fig. No. 8
a
e
b c d
ESIM264
EKB2/EKB3 EKB2/EKB3 EKB2/EKB3 EKB2/EKB3
EPGM1
Max. cable length: a + b + c + d + e = up to 100 meters
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