Measurement Computing Micro 488/EX rev.2.1 - Manual (Page 17)

Section 2 Getting Started
2.3
Note that the Micro488/EX comes configured as an IEEE controller. In this mode
the Micro488/EX is designed to allow a serial host computer to control up to 14 IEEE
488 devices. This mode of operation is described in detail, along with its command
descriptions, in Sections 3, 4 and 5. Theses sections also cover the peripheral mode of
operation.
The Micro488/EX can be configured to transparently communicate with a single
IEEE peripheral, such as a plotter. This Controller Pass-Thru mode is described in
detail in Section 6.
The Micro488/EX may also be configured as a transparent IEEE Pass-Thru
Peripheral. As a Pass-Thru Peripheral, the Micro488/EX allows an IEEE controller to
communicate with a serial device. The Peripheral Pass-Thru mode of operation is
described in detail in Section 7.
To modify any of these defaults, follow this simple procedure: Disconnect the
power supply from the AC line and from the interface. Disconnect any IEEE or serial
cables prior to disassembly.
WARNING
Never open the Micro488/EX case while it is
connected to the AC line. Failure to observe this
warning may result in equipment failure, personal
injury or death.
Remove the four screws located in each corner of the rear panel. Hold the case
firmly and pull the rear panel outward, noting the slot location of the main circuit
board. Modify those parameters which are appropriate for your installation and
reassemble the unit. Slide the main circuit board into the previously noted slot and
finish reassembly by tightening the four screws into the rear panel.
2.3 Serial Port Settings
The first parameters to configure are those that correspond to the RS-232/RS-422
port. These include baud rate, word length, number of stop bits, parity selection and
type of serial handshake. Each of these are described in the following sections.