For optical modules that have been inserted into the ports, you can use the display interface command to view their types:
<H3C>display interface g3/1/1
GigabitEthernet3/1/1 current state : UP
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 00e0-fc00-0000
Description: g1
The Maximum Transmit Unit is 1536
Media type is optical fiber, loopback not set
Port hardware type is 1000_BASE_LX_SMF ? Single mode optical module
<H3C>display interface g2/1/1
GigabitEthernet2/1/1 current state : DOWN
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 00e0-fc00-0000
The Maximum Transmit Unit is 1536
Media type is optical fiber, loopback not set
Port hardware type is 1000_BASE_SX_MMF ? Multi mode optical module
Also can use the display fiber-module command to view the manufacturing information:
< H3C>display fiber-module g4/2/1
GigabitEthernet4/2/1:
Card info: 1000BASE-SFP
Fiber connect: LC
VendorName: AGILENT
PartNumber: HFBR-5710L
Mode: MultiMode
WaveLength: 850nm
Length for 50/125um: 550m
Length for 62.5/125um: 270m
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