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. MON
Connector.
This output may be used to sense the voltage drop across the main
output resistance, thus providing a measure of the actual output current. It is
connected to the internal pulse generator (V
PULSE
) through a 50Ω resistance. The MON
output should operate into a load impedance of 50Ω or higher. If a 50Ω load is used,
note that a 2:1 voltage divider effect will occur. If this output is not used, it should be
covered with a metal BNC dust cap, to prevent interference with other equipment.
Caution: Voltages as high as ±250V 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.
20
Summary of Contents for AVR-D3-B
Page 36: ...PCB 158R5 LOW VOLTAGE POWER SUPPLY ...
Page 37: ...PCB 168C HIGH VOLTAGE POWER SUPPLY ...
Page 38: ...PCB 228C NEGATIVE UV CONTROL PCB ...
Page 39: ...PCB 241C DUAL PW PCB ...
Page 40: ...PCB 335A DUAL TRIGGER ENCODER ...
Page 41: ...PCB 104G KEYPAD DISPLAY BOARD ...
Page 43: ...PERFORMANCE CHECK SHEET ...