M9022A, M9023A, M9024A System Module Installation. Keysight PXIe System Modules and Cable
Advertisement
Advertisement
M9022A, M9023A, M9024A System Module Installation
M9022A, M9023A, M9024A System Module Installation
Understanding Features Controlled by Switch Settings
Mode Settings
The Mode settings, Host and Target, do not apply to the M9022A because it has only one PCIe port on the front panel (always in Target Mode).
The M9023A and M9024A are Dual Port System Modules.
PCIe Port 1 is always a “target,” but the PCIe Port 2 can be configured via switch settings to be either ‘host” or “target.” The default setting for the PCIe Port 2 is
“host.”
Port 1
Target
Target
Port 2 Application
Host (default) x8, Single PCIe cable to chassis, Multi-chassis Cascade,
Multi-chassis Star
Target x16, two PCIe Cables to chassis, Star Multi-chassis
Mode Host (default) x8
The top port (PCIe Port 1) is always connected to the upstream device (that is, the device closest to the computer); for example when the upstream device is a
PC, PCIe Port 1 is the target. In the default configuration the PCIe Port 2 connects to a downstream device; for example when the downstream device is a chassis, PCIe Port 2 is the host. Both of these connections will use a single 8 lane
PCIe cable. See Figure 19 on page 40 for an example PCIe cable topography that
uses this configuration.
Mode Target x16
The mode “target” is possible via switch settings. In this mode PCIe Port 2 connects to a upstream device. There are no downstream devices. This mode is used to achieve maximum bandwidth between a chassis and a PC.
With two x8 PCIe cables working in parallel, the total number of lanes of
communication is 16. See Figure 17 on page 38 for an example of a PCIe cable
topology that uses this configuration. Note that when two cables are connecting a PC to chassis, the top cable connector on PC host adapters must be connected to the top (PCIe Port 1) on the M9023A or M9024A. Likewise, the bottom two ports must connected to each other.
Keysight PXIe System and Cable Interface Installation Guide 27
M9022A, M9023A, M9024A System Module Installation
Transfer Rate Settings
Link settings determine the fastest transfer rate at which the module will support
PCIe. The default switch setting allows the PCIe links to train to a maximum of
Gen3. The module will train its link to a slower speed if the other end of the link cannot support Gen3.
Some devices are old or low performance and can not support Gen3 speeds.
Sometimes a device also cannot correctly follow the PCIe training protocol and the link fails to connect reliably. As a workaround or diagnostics debug step, you can throw the switches on the M9022A, M9023A, and M9024A modules to lower the maximum speed to Gen 1. This lower speed may allow the device to function reliably. For these devices, the Gen1 speed is usually not a throughput performance bottleneck.
Using the M9024A on an M9018 with 4x4 PCIe Switch Fabric
M9024A can be used in an M9018 or M9019A PXIe Chassis. The M9018 can be configured using the PCIe Switch Fabric Configurator to set the PXIe Chassis switch fabric to one of 1x8, 2x8, or 4x4. The 2x8 configuration is the default configuration for the M9022A, M9023A, and M9024A modules. However, if you set the M9018 to a switch fabric of 4x4, and you are using the M9024A, you will need to make a switch setting change on the M9024A so that the IO ports will operate properly.
28 Keysight PXIe System and Cable Interface Installation Guide
M9022A, M9023A, M9024A System Module Installation
Module Switch Settings Summary
SW1
Default Host mode, Gen 3
SW1
Target mode, Gen 3
Low
High
Low
High
Figure 11 Switch Settings
Function
Setting Switches for Host Mode
SW1 Switches
Link Speed Gen 3 (default)
Link Speed Gen 1
1
High
High
2
Low
Low
Notes
Cable port 1 is PCIe x8 input (target mode), Cable port
2 is PCIe x8 output (downstream port to next chassis)
Function
Setting Switches for PCIe Gen Speed
SW1 Switches * Notes
Link Speed Gen 3 (default)
Link Speed Gen 1
3
High
High
4
High
Low
Cable ports 1 and 2 combined as PCIe x16 input. Both ports are in target mode.
* Leave Switches 5 and 6 in the High position.
Keysight PXIe System and Cable Interface Installation Guide 29
M9022A, M9023A, M9024A System Module Installation
M9022A, M9023A, M9024A Front Panel LEDs Summary
PCIe port 1
Status of module
Status of Link to Host
Status of Link to Chassis backplane
PCIe port 2
Status of module*
Status of Link to Host
Status of Link to Chassis backplane connection
(link 3)
Host or Target mode
Figure 12 M9022A, M9023A, M9024A Front Panel LEDs
* The lower port “Status of module” definition depends on the mode of the lower port. If the lower port is in the default mode “Host”, then this LED is shown the status of the lower port. If the lower port is in mode
“target,” then this LED is a copy of the top LED “Status of module.”
LED
Status of Module
Status of Host connection
Status of backplane connection
(Top LED is Link 1 status
Bottom LED is Link 2 status)
Host or Target mode
Color
Off
Red
Blue
Green
Off
White
Blue
Green
Off
White
Blue
Green
Green
Blue
Description
No Power
Power Supply problem or FPGA (normal to go briefly Red on power-up and power-down.)
Module okay but no link present
Link present
No link present
Gen 1 Connection
Gen 2 Connection
Gen 3 Connection
No link present
Gen 1 Connection
Gen 2 Connection
Gen 3 Connection
Host mode (default) (x8)
Target mode (x16)
30 Keysight PXIe System and Cable Interface Installation Guide
M9022A, M9023A, M9024A System Module Installation
There are also a series of five LEDs across the top of the PC board and six LED across the bottom of the PC board indicating power and configuration.
D15
D14
D17
D9
D23
D13
D12
D11
D10
Figure 13 M9022A, M9023A, M9024A PC Board LEDs
D32
D31
LED
D17
D14
Indicates
PXI power is okay
0.9 VDC power is okay
D15
D9
1.8 VDC power is okay
FPGA configuration is okay
D23 PCIe link status for FPGA
D10 - D13 PCIe Link Status when the backplane is 4-link routing. When the backplane is 2-link routing, D10 indicates PCIe link status for left side mezzanine board.
D31- D32 PCIe Link Status when the backplane is 2-link routing. When the backplane is 4-link routing, D31 indicates PCIe link status for left side mezzanine board.
Keysight PXIe System and Cable Interface Installation Guide 31
M9022A, M9023A, M9024A System Module Installation
On the backside of the M9024A module are two LEDs:
D4 D3
Figure 14 Back of M9024A module showing two LEDs
LED
D3
D4
Indicates
Configuration is okay for GPB controller
1.0 VDC power is okay
32 Keysight PXIe System and Cable Interface Installation Guide
M9022A, M9023A, M9024A System Module Installation
M9024A I/O Interfaces
To use the M9024A USB, Ethernet and GPIB ports, use the IO Libraries to verify the programming address. These ports cannot be used to control the PXIe chassis. The IO ports are an extension of the Windows PC and should be observable in Windows Device Manager.
USB
Keysight’s M9024A System Module provides four USB 2.0 Type A ports and two
USB 3.0 Type A ports on the faceplate. All USB ports are compatible with high-speed, full-speed and low-speed USB devices. The USB 2.0 and 3.0 ports do not support the USB Battery Charging specification. Do not connect non-standard or defective USB devices.
Differences between USB 2.0 and USB 3.0
USB 3.0 is the latest version of the Universal Serial Bus (USB). It provides better speed and more efficient power management than USB 2.0. USB 3.0 is backward compatible with USB 2.0 devices; however, data transfer speeds are limited to USB 2.0 levels when these devices inter-operate.
Backwards
Compatibility
Speed
Signaling
Method
Power
USB 2.0
USB 1.1
480 Mbps
(known as High Speed/ HS)
Half duplex
Up to 500 mA
4
USB 3.0
USB 1.1 and USB 2.0 (data transfer speeds are limited to USB 1.1 or USB 2.0 levels)
10 times faster than USB 2.0. Super Speed or SS,
4.8 Gbps
Full duplex (Asynchronous -- it can send and receive data simultaneously)
Up to 900 mA. Allows better power efficiency with less power for idle states. Can power more devices from one hub.
9 Number of wires within cable
Cables and
Connectors
Grey color Blue color. USB 3.0 receptacles are electrically compatible with USB 2.0 plugs if they physically match. USB 3.0 type-A plugs and receptacles are completely backward compatible, and USB 3.0 type-B receptacles accept USB 2.0 and earlier plugs. However, USB 3.0 type-B plugs will not fit into USB 2.0 and earlier receptacles.
This means that USB 3.0 cables cannot be used with USB 2.0 and USB 1.1 peripherals, although
USB 2.0 cables can be used with USB 3.0 devices, if at USB 2.0 speeds.
Keysight PXIe System and Cable Interface Installation Guide 33
34
M9022A, M9023A, M9024A System Module Installation
Ethernet
The M9024A has two RJ-45 connectors with link speed/activity LEDs on the faceplate.
Speed and Link:
10Mbps: off
100Mbps: Green
1000Mbps: Amber
Active:
Flashes Amber when accessing IO
RJ-45 connector
Activity LED
Speed LED
No Link
Off
No Link
Off
Link Established
On (Amber)
10 Mbps
Off
Link established and Network activity
LED flashes (Amber)
100 Mbps
On (Green)
1 Gba
“On (Amber)
GPIB connector
The GPIB connector on M9024A is a D-sub 25-pin connector and is used to control external bench-top instruments. The on-board GPIB controller has the following features:
Compatible with the IEEE 488 standard
Up to 1.5MB/s data transfer rates
On-board 2 KB FIFO for read/write operations
Connect up to 14 instruments
GPIB is a standard VISA Resource
Keysight PXIe System and Cable Interface Installation Guide
M9022A, M9023A, M9024A System Module Installation
A GPIB cable isn’t supplied with the M9024A. The GPIB cable is a specific type available from Keysight as an accessory cable; part number Y1260A. This cable also works with the M9037A
Embedded Controller’s GPIB port. The M9024A GPIB port is not compatible with the M9036A GPIB cable, part number
M9036-31301 .
Please install the most recent version of Keysight IO Libraries Suite to use the GPIB.
The following table provides the pin-out of the front panel D-sub 25-pin GPIB connector.
1 13
5
6
3
4
Pin Signal
1
2
DIO1#
DIO2#
DIO3#
DIO4#
EOI
DAV
7
8
NRFD
NDAC
9 IFC
10 SRQ
11 ATN
12 Shield
13 DIO5#
Keysight PXIe System and Cable Interface Installation Guide
14
Description
GPIB Data 1
GPIB Data 2
GPIB Data 3
GPIB Data 4
End or Identify
Data Valid
Not Ready for Data
Not Data Accepted
Interface Clear
Service Request
Attention
Chassis Ground
GPIB Data 5
Pin Signal
14 DIO6#
15 DIO7#
16 DIO8#
17 REN
18 GND
19 GND
20 GND
21 GND
22 GND
23 GND
24 GND
25 GND
25
Description
GPIB Data 6
GPIB Data 7
GPIB Data 8
Remote Enable
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
Signal Ground
35

Public link updated
The public link to your chat has been updated.
Advertisement