DRAKE EH24 사용 설명서 - 페이지 7

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Installation and Mounting / Front Panel Controls

INSTALLATION AND MOUNTING NOTES

This equipment is designed to be installed in a standard 19" rack. When the unit is mounted above or below other rack

mounted equipment, a 1U space (1.75") should be left between the unit and the other equipment to allow ambient air flow

between the units. No space is needed between EH24 units themselves due to the ventilation provided by their built in fans.

Connect the AC line cord to an appropriate source of 120 volt, 50/60 Hz AC power. The EH24 is always on once the AC

power cord is connected to its power source.

FRONT PANEL CONTROLS

F1, LCD Display - This display presents the selected menu

screen and the parameter settings. The backlight in the

display is on when power is applied.

F2,

Left and

Right Buttons – Use the left and right

arrow buttons to navigate from screen to screen to view a

parameter setting within a particular program group. These

buttons are operational in the view mode or the program

mode. Using only these buttons will not change any param-

eter setting.

F3,

Up and

Down Buttons – Use the up and down

arrow buttons to change the value of a viewed parameter

setting. The unit must be in the program mode in order for

these buttons to become active for changing a parameter

setting. If the unit is not in the program mode, pressing the

Up button will show the version number of the EH24

firmware. Repeatedly pressing the

toggle between showing the Mbits/S for QAM and the Mbits/S

for ASI.

QAM OUTPUT

10.564 Mbits/S

ENCODER

ENTER

SELECT

Down button will

EH24 ENCODER HOST /QAM MODULATOR

F4, ENTER Button - Use the ENTER button to enter the

program mode or to save and load a new setting or settings

after adjustment. Hold for approximately 2 seconds until the

bottom line of the display starts to flash to enter the program

mode. After entering the program mode, momentarily

pressing the ENTER button again will load and save any

settings that may have been changed using the Up and

Down buttons.

F5,

Left and

Right ENCODER SELECT Buttons - Use

the left and right ENCODER SELECT buttons to navigate

through the available SDE24 Encoders and EH24 settings.

The selection of the desired parameters for the selected

encoder or EH24 can then be made using the LEFT and

RIGHT (F2), UP and DOWN (F3), and ENTER (F4) buttons

F6, Ventilation Fan Vents: These are the intake vents for

the two ventilation fans. The exhaust vents are on the back

of the unit. Do not cover any of these vents as overheating

may result.