CPTM-01 Transition Module Connectors
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2-15
2
Serial Port Connectors
Table 2-10. CPTM-01 Serial Port Connector (J28)
Pin
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
Table 2-11. CPTM-01 Serial Port Connector COM1 (J21)
Pin
Signal Mnemonic
Signal Description
1
DCD-
Data set has detected the data carrier
2
DSR-
Data set is ready to establish a communications link
3
RX
Receives serial data input from communication link
4
RTS-
UART is ready to exchange data
5
TX
Sends serial data to communication link
6
CTS-
Data set is ready to exchange data
7
DTR-
Data set is ready to establish a communication link
8
RI-
Modem has received a telephone ringing signal
9
GND
Ground
10
CGND
Chassis ground