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Connector Pin Assignments
4
Table 4-3. Serial Port Connector Pin Assignments for the CPTM04
Transition Module (COM2) (J28)
Pin
Number
Single
Mnemonic
Signal Description
1
DCD
Data set has detected the data carrier
2
RX
Receives serial data input from
communication link
3
TX
Sends serial output to
communication link
4
DTR
Indicates that a data set is ready to
establish a communication link
5
GND
Ground
6
DSR
Indicates that a data set is ready to
establish a communication link
7
RTS
Indicates to data set that UART is
ready to exchange data
8
CTS
Indicates that a data set is ready to
exchange data
9
RI
Indicates that a modem has received
a telephone ringing signal
Solution Systems Technologies Inc.
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Solution Systems Technologies Inc.
720-565-5995 | info@solusys.com | www.solusys.com