National Instruments NI TB-2706 User Manual
INSTALLATION GUIDE
NI TB-2706
PXI/PXIe Terminal Block for M Series and NI 6143 Devices
This installation guide describes how to install and connect signals to the NI TB-2706 terminal block
for use with PXI/PXIe M Series, NI PXI-6143, and other PXI/PXIe devices with a 68-pin VHDCI
connector.
Contents
Introduction.......................................................................................................................................... 1
What You Need to Get Started ............................................................................................................ 1
Safety Information ............................................................................................................................... 2
Connecting the Signals ........................................................................................................................ 3
Installing the Terminal Block .............................................................................................................. 5
Specifications....................................................................................................................................... 6
Where to Go for Support ..................................................................................................................... 7
Introduction
The TB-2706 is a terminal block assembly consisting of a printed circuit board, 70 screw terminals, and
a metal enclosure with strain relief hardware. The terminal block assembly connects directly to the front
panel of National Instruments PXI-622x, PXI-625x, PXIe-625x, PXI-628x, and PXI-6143 devices,
eliminating the need for an external cable.
The TB-2706 allows you to easily connect analog input, analog output, counter/timer, and digital I/O
signals to your National Instruments device. The 70 screw terminals allow access to every pin on the
connector, plus two shield screw terminals for use with a shielded cable. For M Series devices with
two connectors, this terminal block allows access to every pin on Connector 0, plus two shield screw
terminals for use with a shielded cable, but makes Connector 1 inaccessible.
Caution The TB-2706 is not designed for input voltages greater than 42 V
install a voltage divider that reduces the voltage to within the input range of the DAQ device. Input
voltages greater than 42 Vpk/60 VDC can damage the TB-2706, any device connected to it, and the
host computer. Overvoltage also can cause an electric shock hazard for the operator. National
Instruments is not liable for damage or injury resulting from such misuse.
What You Need to Get Started
You need the following to set up and use your terminal block:
❑ NI TB-2706 Terminal Block Assembly
❑ NI TB-2706 Installation Guide
❑ NI PXI/PXIe M Series device, NI PXI-6143, or other PXI/PXIe device with a 68-pin VHDCI
connector
❑ M Series User Manual, S Series User Manual, or other PXI/PXIe DAQ device documentation
/60 VDC, even if you
pk
❑ 0.10 in. slotted screwdriver
❑ Pinout label for M Series (adhered to cover of TB-2706) or pinout list for NI PXI-6143
❑ Number 1 Phillips screwdriver
❑ 26–16 AWG wire
❑ Wire cutte rs
❑ Wire insulation stripper
Safety Information
Cautions Do not operate the device in an explosive atmosphere or where there may be flammable
gases or fumes.
Do not operate damaged equipment. The safety protection features built into this device can become
impaired if the device becomes damaged in any way. If the device is damaged, turn the device off and
do not use it until service-trained personnel can check its safety. If necessary, return the device to
National Instruments for service and repair to ensure that its safety is not compromised.
Do not operate this equipment in a manner that contradicts the information specified in this
document. Misuse of this equipment could result in a shock hazard.
Do not substitute parts or modify equipment. Because of the danger of introducing additional
hazards, do not install unauthorized parts or modify the device. Return the device to National
Instruments for service and repair to ensure that its safety features are not compromised.
You must insulate all of your signal connections to the highest voltage with which the TB-2706 can
come in contact.
Connections, including power signals to ground and vice versa, that exceed any of the maximum
signal ratings on the terminal block can create a shock or fire hazard, or can damage any or all of the
boards connected to the host computer, and the terminal block. National Instruments is not liable for
any damages or injuries resulting from incorrect signal connections.
Clean the module and accessories by brushing off light dust with a soft non-metallic brush. Remove
other contaminants with a stiff non-metallic brush. The unit must be completely dry and free from
contaminants before returning it to service.
NI TB-2706 Installation Guide 2 ni.com
Connecting the Signals
Refer to Figure 1 as you complete the following steps to connect signals to your terminal block.
1
2
13
11
10
1 Top Cover Screw
2 Cover
3 Chassis Ground Lug
4 Strain-Relief Screw
5 Terminal Block Mounting Screw
12
9
6 Strain-Relief Bar
7 Signal Wire
8 Strain-Relief Opening
9Base
3
4
5
6
7
8
10 Screw Terminals
11 Base Tab
12 Connection to PXI/PXIe Module
13 Cover Indentation
Figure 1. TB-2706 Parts Locator Diagram
1. Remove the terminal block cover by unscrewing the top cover screw using the 0.10 in. slotted
screwdriver.
Note Your kit contains a pinout label for M Series devices only, shown in Figure 2. This label,
adhered to the inside of the cover, is a pin number-to-signal name reference. For PXI-6143 pin
connections, refer to Figure 3 or the S Series User Manual.
© National Instruments Corporation 3 NI TB-2706 Installation Guide
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