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USER GUIDE
NI 653x Cable Adapter
Contents
The NI 653x cable adapter interfaces with National Instruments high-speed
digital I/O (DIO) devices. The cable adapter provides an easy way to
connect the Very High Density Connector Interface (VHDCI) connectors,
labeled as Digital Data & Control, on the newer NI 6535/6536/6537
devices to the 68-pin DAQ connectors found on older NI 6533/6534
accessories and fixturing. The 653x cable adapter is also compatible with
the NI 654x and NI 655x digital pattern generator/analyzer devices.
For best signal integrity, NI recommends using the NI 6535/6536/6537
devices with newer accessories such as the NI CB-2162 and NI SMB-2163.
This guide explains how to set up and use the NI 653x cable adapter.
What You Need to Get Started ............................................................... 2
Related Documentation........................................................................... 2
Parts Locator Diagram ............................................................................ 3
Installing Cables...................................................................................... 4
Removing the NI 653x Cable Adapter from its Enclosure ..................... 5
Connecting Signals ................................................................................. 6
Custom Wiring Example ................................................................. 11
Specifications .......................................................................................... 13
Digital I/O ........................................................................................ 13
Traces............................................................................................... 13
Power ............................................................................................... 13
Physical ............................................................................................ 13
Where to Go for Support......................................................................... 14
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Table of Contents
Related Manuals for National Instruments NI 6535
Summary of Contents for National Instruments NI 6535
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Page 1: Table Of Contents
I/O (DIO) devices. The cable adapter provides an easy way to connect the Very High Density Connector Interface (VHDCI) connectors, labeled as Digital Data & Control, on the newer NI 6535/6536/6537 devices to the 68-pin DAQ connectors found on older NI 6533/6534 accessories and fixturing. -
Page 2: What You Need To Get Started
(Optional) NI 6533 or NI 6534 supported terminal block Related Documentation National Instruments high-speed DIO devices ship with several documents designed to familiarize you with different aspects of the device. The titles and location of the documents vary based on the driver that supports the NI device, but you should have the following types of documentation: •... -
Page 3: Parts Locator Diagram
2 Jacksockets (M2.5 Screw, #2-56 Socket) 6 Terminal Connectors 3 68-Pin DAQ Connector 7 VHDCI Connector 4 Enclosure Top Cover 8 #2-56 Custom Screw Figure 1. NI 653x Cable Adapter Parts Locator Diagram © National Instruments Corporation NI 653x Cable Adapter User Guide... -
Page 4: Installing Cables
Installing Cables An SHC68-C68-D2 or C68-C68-D4 cable connects the NI 653x cable adapter to the NI high-speed DIO device. Figure 2 shows how to install the cable. DIGITAL DATA & CONTROL 1 PC Chassis with NI High-Speed DIO Device 3 Cable Jackscrews 2 Cable Assembly 4 NI 653x Cable Adapter Figure 2. -
Page 5: Removing The Ni 653X Cable Adapter From Its Enclosure
Figure 3. Remove Screws from the Enclosure Remove the enclosure top cover. Be sure to remove the screws from side with the NI logo label, as shown in Figure 3. Note © National Instruments Corporation NI 653x Cable Adapter User Guide... -
Page 6: Connecting Signals
NI 653x cable adapter. The 32 DIO channels are directly connected between the two bulk connectors. PFI <0..5> from the NI 6535/6536/6537 VHDCI connector are connected to a 6-position screw terminal. PFI <0..7> from the NI 6533/6534 68-pin DAQ connector are connected to an 8-position screw terminal. - Page 7 DIO 5 DIO 4 DIO 3 DIO 2 PFI 3 PFI 2 DIO 1 DIO 0 DDC CLK OUT/PFI_4 STROBE/PFI_5 Figure 5. VHDCI Connector Pinout (NI SHC68-C68-D2 or NI C68-C68-D4 Cable) © National Instruments Corporation NI 653x Cable Adapter User Guide...
- Page 8 +5 V R GND PFI 2 PFI 6 PFI 0 D PULL PFI 4 PFI 5 C PULL PFI 1 PFI 7 PFI 3 R GND P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 P1.0 P1.1 P1.2 P1.3 R GND P1.4 P1.5 P1.6...
- Page 9 C PULL, Power on state control D PULL The NI 6535/6536/6537/654x/655x does not provide +5 V. If your fixtures require Note this, access to the +5 V signal on the DAQ connector is provided through the unpopulated W1 through-hole solder pad.
- Page 10 Table 3. PFI Screw Terminals Connector Channel Socket VHDCI PFI <0..5> (NI 6535/6536/6537/654x/655x) 68-Pin DAQ Connector PFI <0..7> (NI 6533/6534) Refer to the help file for your device for information about the number of available Note DIO channels on your device. DIO <20..31> or PFI_0 may not be applicable to your device.
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Page 11: Custom Wiring Example
This section describes a burst handshaking example using an NI 653x cable adapter to provide compatibility between an NI 6533/6534 and an NI 6535/6536/6537 where the fixture is configured to work with the NI 6533/6534. Without changing the fixture setup, the adapter and software can be changed to maintain functionality. - Page 12 Figure 9 shows the changes made to this LabVIEW VI to accommodate the NI 653x cable adapter connections and provide compatibility with the previous application using an NI 6535/6536/6537 instead of an NI 6533/6534. Figure 9. NI 653x Burst Handshaking Application with NI 653x Cable Adapter and...
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Page 13: Specifications
When connected to other test objects, this product may cause radio interference. In a residential environment, the user may be required to take adequate measures to reduce the radio interference. © National Instruments Corporation NI 653x Cable Adapter User Guide... -
Page 14: Where To Go For Support
Where to Go for Support The National Instruments Web site is your complete resource for technical support. At you have access to everything from ni.com/support troubleshooting and application development self-help resources to email and phone assistance from NI Application Engineers. - Page 15 Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents.