Global Specialties 2001A - Manual (Page 5)

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Section 3
Operation
3.1 FRONT PANEL CONTROLS
The front panel controls are functionally grouped and clearly
designated for ease of operation. Their functions are described
below :
1. FREQUENCY DIAL
This is frequency setting with a calibrated dial. The output
frequency is multiplication of the reading on dial and
FREQ. MULT (Frequency multiplier) setting.
2. FREQ. MULT. SWITCH
This switch selects the desired frequency range of the
function generator, in decades.
3. FUNCTION SWITCH
Selects Sine, Triangle or Square wave output of the
Function Generator. The TTL output is not affected by this
switch position.
4. LEVEL RANGE
This is 4 position output attenuator switch. The ranges
from 1mV - 10mV, 10mV - 100mV, 100mV - 1V & 1V - 10V
p-p can be selected.
5. OUTPUT CONNECTOR
This is a BNC connector for the function output.
Fig. 3.1 Front Panel Controls
6. LEVEL FINE
This is a continuously variable level control with approx.
20dB range.
7. DC OFFSET
Zero when feature not selected, ±5V DC into open circuit
when selected.
8. TTL OUT CONNECTOR
Square wave output (TTL) is available at this connector.
The TTL signal is in phase with function output.
9. SWEEP IN
DC voltage input to control function generator frequency
(VCG). Input voltage should be with range of 0 to ±10V
DC.
10. POWER ON LED
This LED indicate that power is on.
3.2 REAR PANEL CONTROLS
1. POWER ON/OFF SWITCH
The Function Generator can be turned ON/OFF by this
rear panel switch.
2. FUSE
This is a fuse in series with mains supply (for 230V -
100mA & for 115V - 250mA).
Fig. 3.2 Rear Panel Controls