61225001L1-5D
3
The Express 6530 has four front panel pushbuttons.
The buttons are protected from accidental operation.
The front panel button functions can be disabled via
the management interface. It is possible to disable the
port select SHDSL option to avoid the possibility of
looping the SHDSL port when disabled.
Table 2
lists
and describes these four pushbuttons.
The “Port Select” button operates in the following
manner:
1. When no port has been selected (indicated by
none of the port LEDs flashing), then only the
“Port Select” button is enabled and the LL, RL
and BERT LEDs are an ordered summation of
the test states of the Nx64K, G.703 and SHDSL
interfaces.
2. The Port Select button cycles through the
following ports on each successive press:
• Nx64K
• G.703
• SHDSL (only if enabled via the EOC)
• No Selection
3. When the Nx64K port is selected, the Nx64K
LED will flash as an indication. The Local Loop/
Err Inj, Remote Loop and BERT buttons will
initiate/terminate tests and the corresponding
LEDs indicates the status of tests on this port
only.
4. When the G.703 port is selected, the G.703 port
LED flashes as an indication.
If there is only a single service on the G.703 port
then the Local Loop/Err Inj, Remote Loop and
BERT buttons initiate/terminate tests and the
corresponding LEDs indicate the status of tests
on this port only.
If there are multiple services, the G.703 port
Local Loop/Err Inj, Remote Loop, and BERT
buttons are disabled, and the corresponding LEDs
indicate the status of tests on this port only
(initiated from sources other than the front panel
buttons).
5. When the SHDSL port is selected, the SHDSL
port LED flashes as an indication. Note that the
SHDSL port select can only occur if enabled via
the management interface. The Local Loop/Err
Inj, Remote Loop, and BERT buttons will
initiate/terminate tests and the corresponding
LEDs indicate the status of tests on this port only.
These tests are on the aggregate SHDSL payload
Port Select will not operate if any locally initiated
tests are in progress.
Table 2. Front Panel Pushbuttons
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Содержание Express 6530
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