Avtech AVR-G1-B-P-EMRA-R5-RP-IM, Instructions Manual

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When triggering externally, the instrument can be set such that the output pulse
width tracks the pulse width on this input, or the output pulse width can be set
independently.
6. GPIB Connector . A standard GPIB cable can be attached to this connector to allow
the instrument to be computer-controlled. See the “Programming Manual for -B
Instruments” for more details on GPIB control.
7. RS-232 Connector. A standard serial cable with a 25-pin male connector can be
attached to this connector to allow the instrument to be computer-controlled. A user
name (“admin”) and a password (“default”, as shipped from the factory) are required
when logging into a serial terminal session. The internal controller attempts to auto-
sense the parity setting. It may be necessary to send a few return characters before
attempting a login in order to provide enough data to allow this auto-sensing to work.
(A standard Linux “agetty” process is used to implement serial control internally.) See
the “Programming Manual for -B Instruments” for more details on RS-232 control.
8. Network Connector . This Ethernet connector allows the instrument to be remotely
controlled using the VXI-11.3, ssh (secure shell), telnet, and http (web) protocols. See
the “Programming Manual for -B Instruments” for more details.
9. OUT CONNECTOR . This connector provides the output to a 1.6 kΩ (or higher) load,
with a load capacitance of 900 pF or less.
Caution: Voltages as high as +240V may be present on the center conductor of
this output connector. Avoid touching this conductor. Connect to this connector using
standard coaxial cable, to ensure that the center conductor is not exposed.
10. AMP Connector . The voltage waveform on this connector is proportional to the output
current (V
M
= I
OUT
x 2V / 100 mA), for currents of up to 250 mA. The voltage waveform
is pulsed, similar to the main output. It is not a DC output. This output is intended to
drive high impedance (> 10 kΩ) loads, such as an oscilloscope probe. It can drive 50Ω
loads, but the output voltage will be reduced by a factor of two, approximately. The
output accuracy is ± 10%. The DC component of the waveform varies as a function of
duty cycle and other parameters, and should be ignored. The pulse amplitude (peak-
to-peak) should be measured instead.
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