Beckhoff CB2051 Manual de usuario Pagina 30

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Chapter: Connectors Serial Interfaces COM3 & COM4
page 30 Beckhoff New Automation Technology CB2051
3.12 Serial Interfaces COM3 & COM4
The serial interfaces COM1 and COM2 are made available via two 2x5 pin connectors (JST B10B-
PHDSSLFSN, mating connector: PHDR-10VS). According to the product order, TTL level signals or
RS232 standard signals are provided.
The port address and the interrupt are set via the BIOS setup.
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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