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Getting Started with M Series PCI Express
Devices and the Disk Drive Power Connector
(NI PCIe-6251/6259 Devices)
The disk drive power connector is a four-pin hard drive
connector on PCI Express devices that, when connected, increases the current the device can
supply on the +5 V terminal.
When to Use the Disk Drive Power Connector
M Series PCI Express devices without the disk drive power connector installed perform
identically to other M Series devices for most applications and with most accessories. For most
applications, it is not necessary to install the disk drive power connector.
However, you should install the disk drive power connector in either of the following situations:
•
You need more power than listed in the device specifications
•
You are using an SCC accessory without an external power supply, such as the SC-2345
Refer to the specifications document for your device for more information about PCI Express
power requirements and power limits.
Disk Drive Power Connector Installation
Before installing the disk drive power connector, you must install and set up the M Series PCI
Express device as described in the
DAQ Getting Started Guide for PCI/PCI Express
. Complete
the following steps to install the disk drive power connector.
1.
Power off and unplug the computer.
2.
Remove the computer cover.
3.
Attach the PC disk drive power connector to the disk drive power connector on the device,
as shown in Figure 1-1.
Note
The power available on the disk drive power connectors in a computer can
vary. For example, consider using a disk drive power connector that is not in the same
power chain as the hard drive.
Figure 1-1.
Connecting to the Disk Drive Power Connector
1
Device Disk Drive Power Connector
2
PC Disk Drive Power Connector
1
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Summary of Contents for PXI-6289
Page 1: ...PXI 6289...
