Publication No. 980935 Rev. A
3152B User Manual
SYNC Output
Operation
This tests the operation of the SYNC output. There are two
synchronous output are being tested – Bit and LCOM. Bit normally
operates with standard and arbitrary waveforms and LCOM is
associated with sequenced and burst outputs. The sync output has a
fixed TTL level amplitude into an open circuit.
SYNC Output - Bit
Equipment: Oscilloscope
Preparation:
1. Configure the oscilloscope as follows:
Time Base:
As required by the test
Amplitude:
2 V/div
2. Connect 3152B SYNC to the oscilloscope input.
3. Configure model 3152B as follows:
Waveform: Sine
Output: On
Sync Output:
On
Test Procedure:
1. Verify that the trace on the oscilloscope shows synchronization
pulses at 1
μ
s intervals.
Test Results
Pass
Fail
SYNC Output -
LCOM
Equipment: Oscilloscope
Preparation:
1. Configure the oscilloscope as follows:
Time Base:
As required by the test
Amplitude:
2 V/div
2. Connect the 3152B output to the oscilloscope input (1).
3. Connect the 3152B SYNC to the oscilloscope input (2).
4. Configure model 3152B channel as follows:
Waveform: Sine
Run Mode:
Burst
Burst Count:
10
Re-trigger On
Re-trig period: 10
μ
s
Output: On
Sync Output:
On
Test Procedure:
1. From ArbConnection, click on the Manual Trigger button and
verify that the trace on the oscilloscope shows synchronization
pulses having 10
μ
s pulse widths. Verify that the SYNC pulse is
high for the duration of the burst.
EADS North America Test and Services
Performance Checks 6-19
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