Acnodes FPC 8121, User Manual

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FPC 8121 User’s Manual
2.4 3 x Serial Ports
COM Port Connector: COM1
The connector, COM 1, is a DB-9 connector, and the following table
shows the pin assignments of this connector.
Pin Signal Name
1
DCD, Data carrier detect
2 RXD, Receive data
3 TXD, Transmit data
4
DTR, Data terminal
ready
5 GND, ground
6 DSR, Data set ready
7 RTS, Request to send
8 CTS, Clear to send
9 RI, Ring indicator
COM1
COM Port Connectors:
The RS-232 pin assignments are listed on the following
table.
Pin Desc ription Pin Desc ription
1
Data Carri er Detect
(DCD)
2
Data Set Ready
(DSR)
1
2
3 Rec eive Data (RXD) 4
Reques t to Send
3 4
5 6
5 Trans mit Data (TXD) 6 Clear to S end (CTS)
7
Data Terminal Ready
(DTR)
8 Ring Indic ator (RI)
9 Ground (GND) 10 NC
7 8
9 10
20