JDS Uniphase RX3 Series, User Manual

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21
Multidisplay Mode
The meter features a multidisplay function to facilitate data viewing during multiple-port testing
or during measurements that involve ribbon fiber. This function enables the meter to make and
display backreflection or loss measurements in groups of four.
To set multidisplay mode:
1. Press the MENU key.
2. Press the soft key labeled MULTI DISPLAY to change the status option from OFF to ON.
3. Press the MENU key.
4. Press
the or key to change the channel in increments of four.
Measurements for the four output ports made with the BR
0
, SETUP, and REF functions are
made sequentially, with only a small time delay between each port. Therefore, when terminating
the jumpers for BR
0
measurements, all four jumpers must be terminated at the same time.
When terminating for SETUP and REF measurements, the light from all four jumpers must
reach the detector at the same time (this is possible only through the use of ribbon fiber).
To reset the meter to single-channel display mode:
1. Set the power switch to
O (off).
2. Turn the power switch to
I (on).
3. Select the initialize option during power-up; or repeat the preceding procedure, selecting
OFF rather than ON in step 2.
Data Logging
The data logging function enables the user to download information from the meter to either a
computer or a printer.
To set data logging:
1. Press the MENU key.
2. Press the soft key labeled LOG DATA to set the status option to ON. When the data logging
function is on, the bottom soft key is labeled LOG.
3. Press the MENU key.
4. Press the soft key labeled LOG to transmit the most recent measurement via the GPIB or
the RS232 serial port. The measurement is transmitted as ASCII text in the same format as
it is displayed but with a two-letter prefix, for example, BR (backreflection), AP (absolute
power), or RP (relative power).
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