Model 20T4G18
3.3 FRONT PANEL FEATURES
Refer to Figure 3-2 below.
STANDBY
1
11
6
7
8
POWER
MAIN
INHIBIT
REMOTE
LOCAL
EXIT
10
12
9
5
3
2
Model 20T4G18
20 Watts
4.2 - 18 GHz
OPERATE
4
Figure 3-2. Front Panel Features
Table 1. Front Panel Features
Item Title
Function
1
MAIN POWER
Switchable 16 A. circuit breaker; connects primary power to power supplies.
2.
OPERATE
Push-button; turns on high voltage and SSA when all faults and heater delay are cleared.
3.
STANDBY
Push-button; shuts off SSA and turns off high voltage.
4.
ADJUST
Rotary knob used as an input device to change values of a variety of parameters.
5.
EXIT
Push-button; terminates various menu selection routines and returns to the previous menu level.
6-9.
S1...S4
“Soft Key” push-buttons; various menu selection functions.
10.
Display
Displays numerous parameter values and fault messages.
11.
Keylock Switch
Allows operator to inhibit the TWTA, to enable front panel control, or to enable computer control.
12.
Emergency switch cover
Provides access to emergency bypass switches, which permit manual control of the amplifier.
Rev B
11
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