
COM1 and COM2 Chapter: Connectors
Beckhoff New Automation Technology CB4058 page 33
3.15 COM1 and COM2
The serial interfaces COM1 and COM2 are provided via a 2x5pin connector (FCI 98424-G52-10LF,
mating connector e.g. FCI 90311-010LF).
Description Name Pin Name Description
data carrier detect DCD 1 6 DSR data set ready
receive data RXD 2 7 RTS request to send
transmit data TXD 3 8 CTS clear to send
data terminal ready DTR 4 9 RI ring indicator
ground GND 5 10 VCC 5 volt supply
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