Specifications

Waters Network Systems User’s Manual Page 106
PS-2126M-POE
Function description:
Diagnostics provides a set of basic system diagnosis. Diagnostics provides tests to see if the system
in working order. The basic system check includes EEPROM test, UART test, DRAM test and Flash
test.
Figure 5.72 - Diagnostics
Function name:
Loopback Test
Function description:
In the Loopback Test function, there are two loopback tests -- Internal Loopback Test and External
Loopback Test. The Internal test function will not send the test signal outside the switch box. The test
signal only wraps around in the switch. The External function will send the test signal to its link
partner. If the switch is not connected to active network devices, i.e. the ports are link down, the
switch will report the port numbers failed. If they all are okay, OK is displayed.
Note: When you choose either of these tests, there will be interference with the normal system.
Packets that are being sent and received will stop temporarily.