Avtech AVR-E3A-B, Инструкция по эксплуатации

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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. OS Connector . (Optional feature. Present on units with the -OS and -OT options only).
This connector allows an externally generated DC offset to be added to the output.
The desired DC offset is applied to this connector, which is connected to the output
centre conductor through a high-quality RF inductor. Do not exceed ±50V, 250 mA.
For units with the -OS option, this input is always active. For units with the -OT option,
the DC offset is generated internally by default, unless the “volt:low ext” command is
sent, or the external mode is selected from the front panel offset menu – in which
case, the externally-generated DC bias is applied to this input.
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