EXFO IQS-1600 High-Speed Power Meter for IQS-500/600 - Manual (Page 28)

Setting Up Your High Speed Power Meter
20 IQS-1600
Setting Channel Display(IQS-1620, IQS-1640)
Setting Channel Display(IQS-1620, IQS-1640)
The channel display allows you to select which channels you want to view
when using a multichannel power meter. You can display up to three
optical channels using a dual-channel power meter (the two normal
channels, plus the virtual channel) and up to four optical channels using a
four-channel power meter. These channels may include one or two virtual
channels respectively.
To set the channel displayon IQS-1620 or IQS-1640 models:
1. From the Instrument function tab, click the Display tab to view the
available channels.
2. Select the desired channel.
The data display immediately reflects your selection and the selected
channel indicator will turn light green.