What is the pigtail type of the PON optical port?

Question

Options

• AFC
• BSC
• CSL
• DLC

• A
  6% (2)
• B
  80% (28)
• C
  11% (4)
• D
  3% (1)

Explanation

SC (Subscriber Connector) is the standard pigtail connector type specified for PON optical ports in telecommunications deployments, particularly in FTTH/FTTB networks. PON equipment - including OLTs and ONUs - is designed around SC connectors because they offer reliable push-pull coupling, low insertion loss, and are the ITU-T and IEEE standard for passive optical network interfaces.

Why the distractors are wrong:

• A (FC): FC connectors use a threaded coupling mechanism and are common in lab/test equipment and high-vibration environments, not PON access ports.
• C (SL): SL is not a recognized standard optical fiber connector type - it's a distractor likely included to test whether you confuse real connector acronyms.
• D (LC): LC connectors are a smaller form-factor used in high-density SFP transceiver applications and enterprise equipment, but are not the designated pigtail type for PON ports.

Memory tip: Think SC = Standard for Carrier - SC connectors are the carrier-grade, square-bodied connectors that dominate PON/fiber-to-the-home infrastructure. If you remember that PON is a subscriber access technology, and SC stands for Subscriber Connector, the pairing becomes easy to recall.

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