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Chapter: Connectors Serial Interfaces COM1 and COM2

page 32 Beckhoff New Automation Technology CB3053

4.15 Serial Interfaces COM1 and COM2

The CB3053 offers two serial interfaces COM1 and COM2, which are made available as 2x5pin

connectors (JST B10B-PHDSSLFSN, mating connector: PHDR-10VS). On some board variants COM1 is

being used internally so that these boards only have COM2 externally available. Signals default to

RS232.

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 ... 27 28 29 30 31 32 33 34 35 36 37 ... 68 69

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Beckhoff CB3053 Manual do Utilizador Página 32