Administration: Diagnostics
Displaying Optical Module Status
88 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version)
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• MGBLH1: 1000BASE-LH SFP transceiver, for single-mode fiber, 1310 nm
wavelength, supports up to 40 km.
• MGBLX1: 1000BASE-LX SFP transceiver, for single-mode fiber, 1310 nm
wavelength, supports up to 10 km.
• MGBSX1:1000BASE-SX SFP transceiver, for multimode fiber, 850 nm
wavelength, supports up to 550 m.
• MGBT1: 1000BASE-T SFP transceiver for category 5 copper wire, supports
up to 100 m.
To view the results of optical tests, click Administration > Diagnostics > Optical
Module Status.
This page displays the following fields:
• Port—Port number on which the SFP is connected.
• Description—Description of optical transceiver.
• Serial Number—Serial number of optical transceiver.
• PID—VLAN ID.
• VID—ID of optical transceiver.
• Temp er ature —Temperature (Celsius) at which the SFP is operating.
• Voltage—SFP's operating voltage.
• Current—SFP's current consumption.
• Output Power—Transmitted optical power.
• Input Power—Received optical power.
• Transmitter Fault—Remote SFP reports signal loss. Values are True, False,
and No Signal (N/S).
• Loss of Signal—Local SFP reports signal loss. Values are True and False.
• Data Ready—SFP is operational. Values are True and False
