MBR5 User Manual
MBR5 Rev 007
32
6
PROGRAMMING GUIDE
Setting up for RS-232, USB or GPIB communication
The MBR5 Series backreflection meter may be remotely controlled via GPIB
(IEEE-‐488) and RS-‐232 interface. The GPIB interface of the meter conforms to
the ANSI/IEEE standards 488.1-‐1987 and 488.2-‐1987. The RS232C interface
conforms to ANSI/IEEE standard 488.2-‐1987 where applicable.
The common command set conforms to ANSI/IEEE 488.2 standard syntax. All
other commands conform to the Standard Commands for Programmable
Instruments (SCPI) command language, version 1999.0.
Accessing the “User Menu” mode
In order to establish communication between the computer and the meter, the
RS-‐232 bus or the GPIB bus must be configured properly. The different options
for the communication are contained in the User Menu. Refer to the “USER
MENU OPERATION” section on page 27 for further details.
JDSU Compatibility
Refer to JDSU user manual programming guide section of the backreflection
meter when a JDSU emulation mode is chosen.
Programming over GPIB
The MBR5 supports the IEEE-‐488.1(1987) interface standard. It also supports the
mandated common commands of IEEE-‐488.2(1987) standard. Before attempting
to communicate with the meter over the GPIB interface, the device address
must be set. The address is set by accessing the USER MENU function from the
front panel.
Programming Over RS-‐232
In order to establish a serial communication between a computer and the MBR5,
the computer’s COM port must be configured as described in Table 8.
To connect the MBR5 to the computer, a standard 9 pins straight RS-‐232 cable is
required. Only three pins, Txd, Rxd and GND are needed.
