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USER MANUAL - LBU-ONL 1.5K/2.25K/3K/4.5K
VER.2211.17-One (ENG)
7
COMMUNICATION PORTS
LBU-ONL series includes 2 serial ports: USB & RS232. Additionally, there is also a Smart Port to support different communication cards,
such as: LAN SNMP card, Dry-Contacts card, RS-485 card among others.
RS232 COMMUNICATION PORT
Serial communication port
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Pinout:
Pin 2: RX
Pin 3: TX
Pin 5: GND
Supplied DB9/DB9 cable is wired 1:1, between pins 2, 3, & 5.