ADLINK PXIS-2719A Chassis Deployment Monitoring Guide

P5: Section 2 ↔ Direction of buffer in segment 3 (ON indicates segment 2 → segment 3; OFF represents segment 3 → segment 2).

Various topologies can be achieved through different combinations, including segment isolation, segment 1 → 2, segment 2 → 1, segment 2 → 3, segment 3 → 2, full series connection (1 → 2 → 3), and bidirectional branching (1 ← 2 → 3). This provides flexibility for multi module synchronization, such as transmitting high-speed trigger signals close to the system slot only to the latter half, or establishing isolated trigger domains between different functional modules.

3.2 System reference clock (10MHz) source priority

The backplane provides a 10MHz reference clock (PXI_CLK10) to each peripheral slot for inter module synchronization. The priority of clock sources is as follows (from high to low):

PXI_CLK10-IN pin of Slot 2: If the slot is equipped with a star trigger controller and clock input, it should be used first.

Rear panel BNC (10MHz REF In): The external 10MHz signal (100mVpp~5Vpp, 50 Ω input impedance) will cover the internal oscillator.

Internal high-precision oscillator (accuracy ± 50ppm): default clock source.

There are three LED indicator lights on the backplane, which respectively indicate the current effective source (left: star slot input; middle: BNC external; Right: Internal oscillator). External input can synchronize multiple chassis systems to ensure phase consistency.

3.3 Local Bus

The local bus is a 13 wire daisy chain that connects adjacent peripheral slots (Slot 2~19, excluding Slot 1~2), allowing for the transmission of analog or digital signals between adjacent modules without occupying PCI bandwidth. Suitable for low-speed custom communication, such as cross board handshake or analog signal transmission.

3.4 CompactPCI compatibility

This chassis is compatible with standard 3U CompactPCI modules (without rear I/O), but does not support cPCI modules with rear I/O because the PXI specific signal of the P2 connector conflicts with the cPCI rear I/O signal. If installed, it may cause a short circuit or permanent damage.

Intelligent system monitoring and remote management

PXIS-2719A has a built-in MCU (microcontroller) that communicates with remote hosts through an RS-232 serial port (9-pin D-sub on the back board). Provide hardware level real-time monitoring and remote control functions.

4.1 Monitoring Parameters (Hardware Layer)

Temperature: 8 sensors (T1~T8) are evenly distributed on the top of the backplane, covering all slots from left to right.

Fan: Three speed sensors (RPM) that can display the speed and determine if it is below a threshold.

DC voltage: Monitor 5 voltage channels including 5VSB, 3.3V, 5V, 12V, and -12V.

4.2 Software Tools (Remote Monitoring Utility)

Comes with the graphical tool "PXISRemoteMonUtil. exe", which can be installed and connected via a serial port

Connection control: Select the COM port, connect/disconnect, and record logs (adjustable cycle).

Remote power on/off: Click "Power ON/OFF" to remotely control the chassis power supply (the INHIBIT switch on the rear panel needs to be set to "MAN" mode).

Temperature target value setting: Set "Target Temp" (25~70 ℃), and when the temperature exceeds the target value, the fan will run at full speed; When the temperature is below 25 ℃, the minimum fan speed is 40%, and it is linearly adjusted between them.

Threshold alarm: It can set upper/lower limits for each voltage, temperature, and fan speed. If it exceeds the limit, an alarm will be triggered (front panel LED flashes, software interface displays abnormal).

Save/Load Configuration: Threshold settings can be saved as files for batch deployment.

4.3 Secondary Development API Library

Provide C/C++function library (based on Windows), programmable through RS-232 serial port, and customizable monitoring program. The core APIs include:

InitCOM(): Initialize the serial port handle.

GetChassisStatus (): Retrieve all statuses (power supply, fan speed/status, 8 temperature values, 5 voltage values) at once and store them in the ChassisStatus structure.

Get Threshold(): Read the current alarm threshold (temperature, fan speed, upper and lower limits of each voltage).

AKS hassisPowerOn/Off(): Remote power on/off.

SetFanSpeedMax/Auto(): Force the fan to full speed or automatic mode.

SetTarget Temp(): Adjust the target temperature.

SetTempAlarm(), SetFanAlarm(), Set5VAlarm(), Set3V3Alarm(), Set12VAlarm(), SetN12VAlarm()： Set each alarm threshold separately.

GetMCU Version (): Read the firmware version of the MCU.

CloseCOM(): Release the serial port.

These functions return BOOL to indicate success/failure, making it easy to integrate into automated testing scripts and achieve remote unmanned monitoring.

Troubleshooting and Daily Maintenance

5.1 Common startup troubleshooting

Unable to power on: Check the power cord connection, whether the socket has power, whether the rear panel power switch (if any), and whether the front panel power button is pressed. If the power LED flashes, there may be a short circuit. Remove all peripheral modules and try again.

No video output: Check the monitor and connection cables, confirm that the controller graphics card driver is correct, and attempt to restore BIOS settings.