Measurement Computing Isolator488 - Manual (Page 11)

Section 2 Getting Started
2.2
Earth Ground The Ground terminal on the AC power cable. This is
internally connected to the chassis of the Isolator488.
Controller Port The IEE 488 port labeled CONTROLLER on the rear
panel of the Isolator488. The system
controller
must be connected to this port. Instruments may also be
connected to this port, but instruments placed in the
CONTROLLER port will not be isolated from the
system controller.
Instrument Port The IEEE488 port labeled INSTRUMENTS on the
rear panel of the Isolator488. Instruments may be
connected to this port. Instruments connected to the
Instrument Port may be isolated from devices on the
Controller Port depending on the internal configuration
of the Isolator 488.
Controller Common The logic common connection on the Controller Port.
Pins 18, 19, 20, 21,22, 23, and 24 of the Controller
Port are all connected to Controller Common.
Instrument Common The logic common connection on the Instrument Port.
Pins 18, 19, 20, 21, 22, 23, and 24 of the Controller
Port are all connected to Instrument Common.
Controller Shield The Shield connection (Pin 12) on the Controller Port.
Instrument Shield The Shield connection (Pin 12) on the Instrument Port
The factory configuration of the Isolator488 is as follows: