Avtech AVR-EB2A-B, Instructions Manual

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Ohm terminator is suggested for this purpose.)
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. PULSE OUT CONNECTOR . This connector provides the pulse output signal to the
test jig. This output should be connected to the corresponding input on the test jig
using the supplied 60 cm coaxial cable.
10.CONTROL Connector . This DB-9 female connector should be connected to the
corresponding connector on the test jig using the supplied DB-9 cable. This cable
contains the safety interlock signals that ensure that the test jig lid is closed. The
pinout is as follows:
Pin 1 - To test jig switch 1.
Pin 2 - To test jig switch 2.
Pin 3 - DUT DC forward bias current.
Pin 5 - Ground.
Pin 6 - To test jig switch 1.
Pin 7 - To test jig switch 2.
Pin 9 - Safety sensor power supply (+15V through 680 Ohms).
When the test jig lid is safely closed, Pin 1 is shorted to Pin 6, and Pin 2 is shorted to
Pin 7.
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