Lantronix XPress-Pro SW XPress-Pro SW - 94000 User Guide - Page 19

Alarms for Power Failure, Power-on Self test POST, The Terminal Block

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3: Installation 1. Connect the DC power cord to the plug-able terminal block on the Xpress-Pro SW 94000 switch, and then plug it into a standard DC outlet. 2. Disconnect the power cord if you want to shut down the Xpress-Pro SW 94000 switch. Alarms for Power Failure 1. \There are two pins on the terminal block used for power failure detection. It provides the normally closed output when the power source is active. Use this as a dry contact application to send a signal for power failure detection. PWR1 GND PWR2 GND The Terminal Block Power Input 1 (+24VDC) Power Ground Power Input 2 (+24VDC) Power Ground Earth Ground The relay opens if PWR1 or PWR2 fails (1A) Caution: The relay output is normal open position when there is no power to the Xpress-Pro SW 94000 switch. Please do not connect any power source to this terminal to prevent shorting your power supply. Power-on Self test (POST) The Xpress-Pro SW 94000 Switch performs its Power-On Self Test (POST) when the power is switched on. During the POST, the Xpress-Pro SW 94000 switch CPU will: Perform a series of diagnostic procedures to make sure the basic system is functioning properly. A command line prompts when you press the Esc key on a terminal connected to the Xpress-Pro SW 94000 switch serial port during the POST process. Then you can execute the following options: Download runtime software from serial port0 This will download the runtime system image to the Xpress-Pro SW 94000 switch via the serial port. Before selecting this option, make sure: XPress-Pro SW 94000 User Guide 19

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3: Installation
XPress-Pro SW 94000 User Guide
19
1.
Connect the DC power cord to the plug-able terminal block on the Xpress-Pro SW
94000 switch, and then plug it into a standard DC outlet.
2.
Disconnect the power cord if you want to shut down the Xpress-Pro SW 94000
switch.
Alarms for Power Failure
1.
\There are two pins on the terminal block used for power failure detection. It provides
the normally closed output when the power source is active. Use this as a dry contact
application to send a signal for power failure detection.
The Terminal Block
PWR1
Power Input 1 (+24VDC)
GND
Power Ground
PWR2
Power Input 2 (+24VDC)
GND
Power Ground
Earth Ground
The relay opens if PWR1 or PWR2
fails (1A)
Caution: The relay output is normal open position when there is no power to the
Xpress-Pro SW 94000 switch. Please do not connect any power source to this
terminal to prevent shorting your power supply.
Power-on Self test (POST)
The Xpress-Pro SW 94000 Switch performs its Power-On Self Test (POST) when the
power is switched on. During the POST, the Xpress-Pro SW 94000 switch CPU will:
Perform a series of diagnostic procedures to make sure the basic system is functioning
properly.
A command line prompts when you press the Esc key on a terminal connected to the
Xpress-Pro SW 94000 switch serial port during the POST process. Then you can execute
the following options:
Download runtime software from serial port0
This will download the runtime system image to the Xpress-Pro SW 94000 switch via the
serial port. Before selecting this option, make sure: