National Instruments NI CVS-1450 Series User Manual

© National Instruments Corporation

Table 3-4 lists pin numbers, signal names, and signal descriptions for the 
9-pin COM1 connector on the CVS-1450 device.

The Ethernet port on the CVS-1450 device provides connection between 
the CVS-1450 device and the development computer, either directly or 
through a network port. The CVS-1450 device automatically detects the 
speed of the connection and configures itself accordingly.

If you are connecting the CVS-1450 device to the development computer 
through a network port, use a standard Ethernet cable. To connect the 
CVS-1450 device directly to the development computer, use an Ethernet 
crossover cable.

Table 3-4.  COM1 Connector Signals

1

DCD

Data Carrier Detect

2

RXD

Receive Data

3

TXD

Transmit Data

4

DTR

Data Terminal Ready

5

C

Common-mode signal of the 
CVS-1450 device main power

6

DSR

Data Set Ready

7

RTS

Ready to Send

8

CTS

Clear to Send

9

RI

Ring Indicator