Transition Networks
SMxxTAT4Xx Web User Guide
Vcc: Displays the internally measured transceiver supply voltage. Accuracy is vendor specific but must be better
than 3 percent of the manufacturer's nominal value over specified operating temperature and voltage. Note that
in some transceivers, transmitter supply voltage and receiver supply voltage are isolated. In that case, only one
supply is monitored. Refer to the device specification for more detail.
Mon1 (Bias): Displays the measured TX bias current in uA. Accuracy is vendor specific but must be better than 10
percent of the manufacturer's nominal value over specified operating temperature and voltage.
Mon2 (TX PWR): Displays the measured coupled TX output power in mW. Accuracy is vendor specific but must be
better than 3dB over specified operating temperature and voltage. Data is assumed to be based on measurement
of a laser monitor photodiode current. Data is not valid when the transmitter is disabled.
Mon3 (RX PWR): Displays the measured received optical power in mW. Absolute accuracy depends on the exact
optical wavelength. For the vendor specified wavelength, accuracy should be better than 3dB over specified
temperature and voltage. This accuracy should be maintained for input power levels up to the lesser of maximum
transmitted or maximum received optical power per the appropriate standard. It should be maintained down to
the minimum transmitted power minus cable plant loss (insertion loss or passive loss) per the appropriate
standard. Absolute accuracy beyond this minimum required received input optical power range is vendor specific.
Buttons
: The port select box lets you select which port's information is to be displayed.
Refresh: Click to refresh the page immediately. Any changes made locally will be undone.
Auto‐refresh: Check this box to enable an automatic refresh of the page every 3 seconds.
33786 Rev. A
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