DS2460Q QAM Analysis Meter Operation Manual
80
• Straight physical contact (PC)
Figure 4-60
The fiber ends are pressed together in the connector.
There is no air gap left to cause reflections. The return
loss is30 – 55 dB.
This is the most common connector for single mode
fibers(for example FC/PC, ST, SC/PC, DIN, HMS, E 2000
connectors).
• Slanted (angled) physical contact (APC)
Figure 4-61
In these connectors the ends of the fibers are slanted.
Again no air gap is left. This gives the best return
loss(60-80 dB).
These connectors are used for high-speed telecom
and CATV links (for example FC/APC, SC/APC, E
2000-HRL connectors).
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