Is the following description correct? The larger the return loss, the better. In general, the return loss of APC is greater than that of PC type connectors.

Question

Options

• ATrue
• BFalse

• A
  80% (20)
• B
  20% (5)

Explanation

Option A is correct because both statements are accurate. Return loss measures how much signal is reflected back at a connection point - a higher return loss value (in dB) means less reflected power, which means better signal integrity and less interference. So maximizing return loss is always desirable.

Regarding the connector comparison: APC (Angled Physical Contact) connectors feature an 8-degree angled ferrule polish that deflects reflected light away from the fiber core entirely. This gives APC connectors a typical return loss greater than 60 dB. PC (Physical Contact) connectors, with their flat or slightly curved polish, allow reflected light to travel straight back into the fiber, yielding return loss only around 40 dB. So APC connectors do indeed outperform PC types on this metric.

Option B is wrong on both counts - higher return loss is better (not worse), and APC does surpass PC in return loss performance.

Memory tip: Think of return loss like a security bouncer - a higher number means fewer unwanted reflections get back in. And remember APC = Angled = Amazing return loss, because the angle bounces reflections away from the fiber core.

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