Avtech AVO-6-B, Instructions Manual

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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. AMP Connector . (Optional feature. Present on "-EA" units only.) The output amplitude
can be set to track the voltage on this input. Zero Volts in corresponds to zero
amplitude output, and +10V in corresponds to maximum amplitude out. This mode is
activated by selecting "Ext Control" on the front-panel amplitude menu, or with the
"source:voltage external" command.
10.OUT CONNECTOR . These five SMA connectors provide the main output signals. For
best results, each output should be connected to the output module. (Alternatively,
these five output connectors can drive five separate 50 Ohm loads.) These five
connectors are all wired to the same point internally.
Caution: Voltages as high as 120V may be present on the center conductor of
these output connectors. Avoid touching this conductor. Connect to these connectors
using standard coaxial cables, to ensure that the center conductor is not exposed.
11. CONTROL Connector . This DB-9 female connector should be connected to the
corresponding connector on the output module using the supplied DB-9 cable. This
cable contains the wiring for the output module cooling fan and the output module
thermistor.
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