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M3099EX/EH OEM Manual 3-3
INTERFACE
SPECIFICATIONS
Driver/receiver
• Driver: SN75188 or equivalent
• Receiver: SN75189 or equivalent
To determine the threshold level of the signal at the receiver, the
following circuit must be connected to the response control pins.
20 kΩ
100 pF
To response control pin
–12 V
0V