Table 63 COM1/COM2 (RS-232)9-Pin D Connector (male)

IDAN Pin #

Signal

Function

Mode

 

 

 

 

1

DCD

Data Carrier Detect

Input

 

 

 

 

2

RXD

Receive Data

Input

 

 

 

 

3

TXD

Transmit Data

Output

 

 

 

 

4

DTR

Data Terminal Ready

Output

 

 

 

 

5

GND

Ground

 

 

 

 

6

DSR

Data Set Ready

Input

 

 

 

 

7

RTS

Request To Send

Output

 

 

 

 

8

CTS

Clear To Send

Input

 

 

 

 

9

RI

Ring Indicator

Input

 

 

 

 

Table 64 COM1/COM2 (RS-422/485)9-Pin D Connector (male)

IDAN Pin #

Signal

Function

Mode

 

 

 

 

1

Reserved

 

 

 

 

2

RXD–

Receive Data –

Input

 

 

 

 

3

TXD–

Transmit Data –

Output

 

 

 

 

4

Reserved

 

 

 

 

5

GND

Ground

 

 

 

 

6

Reserved

 

 

 

 

7

TXD+

Transmit Data +

Output

 

 

 

 

8

RXD+

Receive Data +

Input

 

 

 

 

9

Reserved

 

 

 

 

92 CMX58886CX cpuModule

BDM-610000050 Rev A

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IBM CMX58886CX user manual COM1/COM2 RS-232 9-Pin D Connector male, COM1/COM2 RS-422/485 9-Pin D Connector male