Chapter 2
LEDs, DIP Switches, and Connectors
©
National Instruments Corporation
2-11
NI CVS-1450 Series User Manual
Table 2-4 lists pin numbers, signal names, and signal descriptions for the
9-pin COM1 connector on the NI CVS-1450 device.
Ethernet
The Ethernet port on the NI CVS-1450 device provides connection
between the NI CVS-1450 device and the development computer, either
directly or through a network port. The NI CVS-1450 device automatically
detects the speed of the connection and configures itself accordingly.
If you are connecting the NI CVS-1450 device to the development
computer through a network port, use a standard Ethernet cable. To connect
the NI CVS-1450 device directly to the development computer, use an
Ethernet crossover cable.
Table 2-4.
COM1 Connector Signals
Pin
Number
Signal Name
Signal Description
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
NI CVS-1450 device main power
6
DSR
Data Set Ready
7
RTS
Ready to Send
8
CTS
Clear to Send
9
RI
Ring Indicator
