Introduction
Most of the times, when we create cases on support portal, we need device information to proceed, such as Device model and serial number. This article describes how to view the following system information:
1. Overview information
2. Details of voltage, fan status, power supply, alarm status, and temperature
3. Serial number
Viewing overall system information
In order to login to the device, you can use following article for step by step instructions.
Local management through the Console portTo display an overview of the switch hardware, software, and system settings, enter User Exec or Privileged Exec mode and enter the command:
awplus# show system
The output depends on the product, example listed below is from AT-x230-18GT device for reference
System Status Wed Feb 03 18:03:15 2021
Board ID Bay Board Name Rev Serial number
----------------------------------------------------------------------------
Base 401 Base x230-18GT C-0 G2AKGB02U
-----------------------------------------------------------------------------
RAM: Total: 510944 kB Free: 385528 kB
Flash: 61.9MB Used: 49.0MB Available: 12.9MB
---------------------------------------------------------------------------
Environment Status : Normal
Uptime : 266 days 05:59:26
Bootloader version : 3.1.8
Current software : x230-5.4.9-1.1.rel
Software version : 5.4.9-1.1
Build date : Tue Jul 23 21:57:46 UTC 2019
Current boot config: flash:/default.cfg (file exists)
System Name
awplus
System Contact
Bob
System Location
Demo_lab
Viewing voltage, fan status, power supply, alarm status, and temperature
The unit monitors it's environmental status, power supplies(PSU) and fans. To display this information, enter User Exec or Privileged Exec mode and enter the command:
awplus# show system environment
The output depends on the product, example listed below is from AT-x230-18GT device for reference
Environment Monitoring Status
Overall Status: Normal
Resource ID: 1 Name: x230-18GT
ID Sensor (Units) Reading Low Limit High Limit Status
1 Fan: Fan 1 (Rpm) 3944 2700 - Ok
2 Voltage: 2.5V (Volts) 2.499 2.339 2.859 Ok
3 Voltage: 1.0V (Volts) 1.014 0.891 1.090 Ok
4 Voltage: 3.3V (Volts) 3.338 3.028 3.545 Ok
5 Voltage: 1.5V (Volts) 1.538 1.335 1.649 Ok
6 Voltage: 12.0V (Volts) 11.828 10.767 13.166 Ok
7 Temp: System (Degrees C) 43 -11 73 Ok
In system environment output, we have to look for ****Fault*** status if the unit is showing some functionality issues.
Submit those logs when you request RMA for the device.
*********EXCEPTION******
Switch Blade CFC(Controller Fabric Cards) do show sometimes FAULT as following example :
Resource ID: 6 Name: AT-SBx81CFC960
ID Sensor (Units) Reading Low Limit High Limit Status
1 Voltage: 2.5V (Volts) 2.448 2.344 2.865 Ok
2 Voltage: Battery (Volts) 0.731 2.700 3.586 FAULT
3 Voltage: 3.3V (Volts) 3.300 2.973 3.627 Ok
4 Voltage: 1.0V (Volts) 0.998 0.900 1.097 Ok
5 Temp: Internal (Degrees C) 38 65(Hyst) 70 Ok
This fault is because of the low voltage reading from the Battery. Please follow pg.154 of the installation guide to correct this fault and make those cards functionable again.
https://www.alliedtelesis.com/sites/default/files/documents/installation-guides/ati_sbx8112_sbx81cfc960_ig.pdf#page=154 
Viewing the serial number
The device serial number is displayed in the output of the show system command, but for convenience, you can also display it by itself. To do this, enter User Exec or Privileged Exec mode and enter the command:
awplus# show system serialnumber
The output looks like this:
awplus#show sys ser
G2AKGB02U (Old format of serial no.)
OR
A10227R192400386 ( new format serial no.)
**** We prefer submitting the new format of Serial No. if you your system has both formats