10
Analogue Monitor (each output)
The output terminal voltage and output current may be monitored on V MONITOR and I MONITOR
respectively. The output scaling for both is the same as that set for V CONTROL and I CONTROL,
see previous section.
The Analogue Monitor outputs should be connected to a measuring system with ‘floating’ inputs
such as a DMM.
Do not apply external voltages to these terminals.
RS232 (QPX600DP only)
9−pin female D−connector with pin connections as shown below. Can be connected to a standard
PC port using a fully wired 1:1 male-female cable without any cross-over connections.
8 DTR
9 CD No internal connection
Signal ground is connected to instrument ground.
USB (QPX600DP only)
The USB port is connected to instrument ground. It conforms with USB 2.0 (Full Speed) and
accepts a standard USB cable. The Windows plug-and-play functions should automatically
recognise that the instrument has been connected. If the correct driver is not found, follow the
Windows on-screen prompts and install the required files from the CD supplied.
LAN (QPX600DP only)
The LAN interface is designed to meet LXI ( Lan eXtensions for Instrumentation) version 1.2;
the instrument is Class C compliant. Remote control using the LAN interface is possible using a
TCP/IP Socket protocol. The instrument also contains a basic Web server which provides
information on the unit and allows it to be configured. Since it is possible to misconfigure the LAN
interface, making it impossible to communicate with the instrument over LAN, a LAN Configuration
Initialise (LCI) mechanism is provided via a recessed switch on the rear panel (marked LAN
RESET) to reset the unit to the factory default.
Further details are given in the Remote Operation chapter. For more information on LXI standards
refer to www.lxistandard.org/home
GPIB (QPX600DP only)
The GPIB signal grounds are connected to the instrument ground. The implemented subsets are:
SH1 AH1 T6 L4 LEO SR1 RL2 PP1 DC1 DT0 C0 E2
The GPIB address is set from the front panel.
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