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© National Instruments Corporation
4-1
4
Connecting Signals
This chapter describes how to make input and output signal connections to 
the NI PCI-6110/6111 through the device I/O connector. Table 4-1 shows 
the cables that can be used with the I/O connectors to connect to different 
accessories.
I/O Connector
Figure 4-1 shows the pin assignments for the 68-pin I/O connector on the 
NI PCI-6110/6111. A signal description follows the connector pinouts. 
Figure 4-2 shows the pin assignments for the NI PCI-6110/6111 when used 
with a 50-pin accessory.
Caution
Connections that exceed any of the maximum ratings of input or output signals 
on the NI PCI-6110/6111 can damage the device and the computer. Maximum input ratings 
for each signal are given in the Protection column of Table 4-3. NI is not liable for 
any damage resulting from such signal connections.
Table 4-1.  I/O Connector Details
Device with 
I/O Connector
Number 
of Pins
Cable for 
Connecting 
to 100-Pin 
Accessories
Cable for 
Connecting 
to 68-Pin 
Accessories
Cable for 
Connecting 
to 50-Pin 
Accessories
NI PCI-6110, 
NI PCI-6111
68
N/A
SH68-68EP,
SH68-68R1-EP
SH6850