National Instruments NI CVS-1450 Series User Manual

Page of 91
Chapter 3
LEDs, DIP Switches, and Connectors
3-6
ni.com
Connectors
This section describes the connectors on the CVS-1450 device and includes 
pinouts and signal descriptions for each connector.
Table 3-1 summarizes the functions of the connectors on the CVS-1450 
device.
Power Connector
The power connector on the CVS-1450 device accommodates two power 
supplies. The terminals labeled V and C provide the voltage and 
common-mode signal for the main power of the CVS-1450 device. The 
terminals labeled Viso and Ciso provide the voltage and common-mode 
signal to power the isolated output circuitry. 
Caution
The isolation provided by the CVS-1450 device is intended to prevent ground 
loops that could introduce noise into the system. This isolation does not provide safety 
isolation.
Table 3-1.  CVS-1450 Device Connectors Overview
Peripheral
External Connectors
Function
Power
4-position power 
connector
Main power and power for isolated outputs
IEEE 1394a
6-pin IEEE 1394
Power and data connection to IEEE 1394 
cameras
VGA
15-pin female DSUB 
(standard VGA)
Video output
Serial
9-pin male DSUB 
(standard RS-232 serial 
port)
COM1
10/100 Ethernet
RJ-45 (standard 
Ethernet port)
Ethernet network connection
TRIG 0
SMB receptacle
External isolated trigger input
TRIG 1 and TRIG 2
SMB receptacle
External TTL output
Digital Input/Output
44-pin female 
high-density DSUB
External TTL I/O; External isolated I/O