Difference between GLC-LH-SM and SFP-GE-L

[Jaime Soto Valenzuela]

Hi,

Could someone explain me what is the difference between these two modules?.

Thanks,

Jaime.

[acampbell · Accepted solution]

Jaime

The differnce is the typeof fibre connector

GBIC Module and SFP Module Cabling and Connection Equipment

The GBIC module port is a 1000-Mbps optical interface in the form of an SC-type duplex port (see Figure 1) that supports IEEE 802.3z interfaces compliant with the 1000BASE-X standard.

Table 6 provides cabling specifications for the GBIC modules and SFP modules that you install in Gigabit Ethernet devices. Note that all GBIC module ports have SC-type connectors and all SFP ports have LC-type connectors.

The minimum cable distance for the WS-G5484 or GLC-SX-MM and WS-G5486 or GLC-LH-SM (multimode fiber [MMF] and single-mode fiber [SMF]) is 6.5 feet (2 m), and the minimum link distance for the WS-G5487 or GLC-ZX-SM is 6.2 miles (10 km) with an 8-dB attenuator installed at each end of the link. Without attenuators, the minimum link distance for the WS-G5487 or GLC-ZX-SM is 24.9 miles (40 km).

http://www.cisco.com/en/US/docs/routers/7200/install_and_upgrade/gbic_sfp_modules_install/5067g.html#wp54251

Regards,
Alex.
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[rhett.may]

Both the GLC-LH-SM and SFP-GE-L are available in the SFP form factor. This is information is not entirely helpful...

[Raju Sekharan · Accepted solution]

Hi Jaime

GLC-LH-SM doesn't support DOM

SFP-GE-L support DOM

Here is the link

http://www.cisco.com/en/US/prod/collateral/modules/ps5455/ps6577/product_data_sheet0900aecd8033f885.html

What is DOM?

digital optical monitoring (DOM). This feature gives the end user the  ability to monitor real-time parameters of the SFP, such as optical  output power, optical input power, temperature, laser bias current, and  transceiver supply voltage.

/Raju

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[Jaime Soto Valenzuela]

Thanks for your help.

One more question, These modules are supported in any LC that support SFP ports?.

[Raju Sekharan]

Hi Jaime,

For compatibilty check the below link

http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/compatibility/matrix/OL_6981.html

/Raju