Owner`s manual

36
NOTE: If the Telplex enters the idle state abnormally (e.g., by the
Telplex losing power, but not the local modem) and the local modem
is still connected to the remote modem, you should enter into Access
Local Modem mode (multi-drop units) or Local mode (standard units)
and type ATO. This will cause the Telplex to return to MUX mode.
When using Direct Line Type and the power switch is turned on, the
Telplex will go through the following sequence:
1) Perform a short self test.
2) Go into MUX mode once the remote Telplex units
recognize each other.
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The Telplex has nine LEDs and a SELECT switch on the front panel
(see Appendix B ). The POWER LED indicates that power is applied
to the unit. The three MODE LEDs indicate the mode in which the
unit is currently operating. These LEDs have different meanings
depending on the type of Telplex you have. The LED description for
multi-drop units is discussed in Section 4.4.1 . The LED description
for standard units is discussed in Section 4.4.2 .
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The description of the mode LEDs is summarized in the table below.
MULTI-DROP UNIT MODE LEDs DESCRIPTION
MUX LOCAL PROG Description
1 0 0 MUX mode or Remote Unit Diagnostics mode
0 1 0 System mode, Local Unit Diagnostics mode,
or Access Local Modem mode
N/A N/A 1 Local Unit or Remote Unit Configuration
mode
1 = Respective LED is illuminated
0 = Respective LED is not illuminated
N/A = Not Applicable