NI CB-2162 User Guide
14
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Figure 9.
Example of Dual-Termination Resistor Network
To implement this configuration, insert the 10-pin resistor network into the
J connector corresponding to the desired DIO channel. Make connections
to ground using a jumper to connect W4, W5, W6, and/or W7 with the
pull-down configuration mentioned previously. This jumper effectively
terminates the signal or pulls the signal to ground by a value provided by
R2 of Figure 9.
You can use the pull-up terminating resistance by connecting pin 10 of
the resistor network to the solder pads connected to pin 10 of the socket,
as shown in Figure 7. Connect external power to this solder point. Refer to
the resistor network manufacturer documentation for information on proper
pin labeling and resistor values.
Terminating Control Channel Signals
The control channel termination sockets are intended to accept standard
through-hole resistors. Refer to Figure 1 for the termination socket
locations. Table 3 lists the termination sockets for control channel
termination resistors.
Table 3.
Control Channel Termination
Control Channel
Termination Sockets
Termination Type
STROBE/PFI_5 (W1)
J1, J2 (F1)
Series
DDC CLK OUT/PFI_4 (W2)
J5, J6 (F2)
Parallel (pull-down)
RESERVED/PFI_0
(F3)
Parallel (pull-down)
PFI 1 (W3)
J7, J8 (F4)
Parallel (pull-down)
PFI 2 (W3)
J9, J10 (F5)
Parallel (pull-down)
PFI 3 (W3)
J11, J12 (F6)
Parallel (pull-down)
1
10
R2
R2
R2
R2
R2
R2
R1
R1
R1
R1
R1
R2
R1
R2
R1
R1
