OPERATION
B. J20 MULTI-ENCODER OUTPUT SELECT
This jumper configures the Multi-Encoder to output translated time, generated time, or in
the automatic mode (with no jumper installed), to generate the time displayed on the front
panel LED Display.
J20
321
GENERATOR
SELECTION
J20
321
AUTOMATIC
J20
321
TRANSLATOR
SELECTION
Note: The factory default setting for this jumper is Automatic. Power must be cycled for
a jumper change to be effective.
C. J22 REAR PANEL BNC J5 CONFIGURATION
Internal jumper J22 provides selection of J5 (rear panel BNC) as an external oscillator
input or a 10MHz sine wave output.
J22
123
10MHz
OUTPUT ENABLED
J22
123
EXT. OSC.
INPUT ENABLED
Note: The factory default setting for this jumper is Ext. Osc. Input Enabled.
3.3 INDICATORS
The following paragraphs give an explanation of the indicators used in this unit:
3.3.1 LCD DISPLAY
The LCD Display is used to display menus for operator prompting, instrument status, and the
function of the select switches. The LCD Display is located on the right half of the front panel
just above the SELECT switches. See Figure 3.1.
3.3.2 LED DISPLAY
The LED Display is normally used to display Time-of-Year. The time displayed is automatically
selected from the Generator or the Translator according to the menu chosen. The LED Display is
located on the left half of the TM7000 front panel. See Figure 3.1.
Symmetricom, Inc. TM7000 TymMachine TCG/T (Rev D) 3-3
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