Test Commands - Multitech MMH900 User Manual

5.2.8

Test Commands

Command Description
&T1-2 MemoryTest
There are two memory tests available on the
MultiMux. The first test (&T1) will alter the contents
of the basic system memory, which is automatically
restored when power is turned on to the system or
when a reset command is executed. The second
memory test (&T2) alters the contents of the
memory that stores parameters. When this test is
executed, a warning is given that stored parameters
will be destroyed. If the Memory Test 2(&T2)
passes, the factory default parameters will be
loaded into your MultiMux.
When executing any of the memory tests, a
complete cycle is indicated by a test passed or failed
message on the supervisory console. If the test
fails, a RAM address is given and the read and write
values are shown.
&T3 Not used.
&T4 Test Mode 4
Test Mode 4 is the Analog Loop test which checks
the operation of a local MultiMux. This test mode will
cause data entered on channel device keyboards to
be echoed back to the device's monitor. The entered
data goes through the MultiMux plus the digital and
analog sides of the internal modem before being
returned to the device monitor. This test will not run
with an external modem.
&T5 Test Mode 5
Test Mode 5 is the Digital Loop test which causes
data from the composite link to be echoed through
the analog and digital sides of the internal modem
and back to the link. This command puts your
MultiMux in loop back so the MultiMux at the other
end of the composute link can transmit from a
channel device and have the information echoed
back to the device.
Chapter 5 - Commands
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