Connections; Front Panel Connections; Rear Panel Connections; Output Terminals (Ql355P & Ql564P Only) - TTI QL Serie Manual De Instrucciones

Front Panel Connections

The load should be connected to the positive (red) and negative (black) terminals marked OUTPUT.
Remote sense connections to the load, if required, are made from the positive (+) and
negative (−) REMOTE SENSE terminals. Remote sense operation is selected from the keyboard or
via a remote control interface (QL355P & QL564P only); the REMOTE SENSE lamp is lit when
remote sense is selected. Switching off remote sense returns the instrument to local sensing at the
output terminals.
The terminal marked

Rear Panel Connections

Output Terminals (QL355P & QL564P only)
The output and sense terminals are duplicated on the rear panel screw-terminal block marked
Output +, Output −, Sense + and Sense − ; these connections are paralleled with their front panel
equivalents.
Remote sense operation is selected from the keyboard or via a remote control interface. When the
rear panel terminals are used, remote sense should always be selected to ensure that output
regulation is maintained within specification.
RS232 (QL355P & QL564P only)
9−pin D−connector compatible with addressable RS232 use. The pin connections are shown below:
Pin 2, 3 and 5 may be used as a conventional RS232 interface with XON/XOFF handshaking. Pins
7, 8 and 9 are additionally used when the instrument is used in addressable RS232 mode. Signal
grounds are connected to instrument ground. The RS232 address is set from the keyboard.
GPIB (QL355P & QL564P only)
The GPIB interface is not isolated; the GPIB signal grounds are connected to the instrument ground.
The implemented subsets are:
The GPIB address is set from the keyboard.
USB (QL355P & QL564P only)
The USB port is connected to instrument ground. It accepts a standard USB cable. The Windows
plug-and-play functions should automatically recognise that the instrument has been connected.
20
is connected to the chassis and safety earth ground.
Pin Name Description
−
1 No internal Connection
2 TXD Transmitted data from instrument
3 RXD Received data to instrument
−
4 No internal connection
5 GND Signal ground
−
6 No internal connection
7 RXD2 Secondary received data
8 TXD2 Secondary transmitted data
9 GND Signal ground
SH1 AH1 T6 TE0 L4 LE0 SR1 RL1 PP1 DC1 DT1 C0 E2

Connections