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RM3 SERIES BACKREFLECTION METER
USER’S MANUAL
10112341 Rev 002 Page 39 of 39
RS232-GPIB Converter
An optional user-supplied RS232-to-IEEE 488 converter can be used with the RS232
connector on the RM meter to access an IEEE 488 parallel interface. The converter, supplied
with the appropriate RS232 cable, is attached to the RS232 connector on the rear panel.
The converter is set up and tested as described in Table 10 and Table 11. To avoid conflict
with other GPIB devices, the GPIB address can be changed.
Left Dip Switch
The settings for the left dip switch are shown in Table 10.
Table 10: Left Dip Switch Settings
Switch Setting Meaning
GPIB ADDR 01000 address = 2
CONFIG ON use large serial buffer, enable
SRQ
MODE OFF device mode
Right Dip Switch
The settings for the right dip switch are shown in Table 11.
Table 11: Right Dip Switch Settings
Switch Setting Meaning
BAUD RATE all OFF set baud rate to 2400
DATA FORMAT OFF
OFF
ON
ON
odd/even parity
disable parity checking
use 2 stop bits
use 8 bits per character
HANDSHAKE OFF disable XON/XOFF protocol