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Serial Interfaces COM1 & COM2 Chapter: Connectors

Beckhoff New Automation Technology CB2051 page 29

3.11 Serial Interfaces COM1 & COM2

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

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 76 77

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Beckhoff CB2051 Manual do Utilizador Página 29