1. In some cases, customers might experience that a link would be operating properly over FDDI-grade, OM1 or OM2 fiber types without MCP. However please note there is no guarantee link will be operating properly over time, and the recommendation remains to use the MCP.
2. There is a risk associated to this type of nonstandard deployment without MCP, especially when the jumper cable is an FDDI-grade or OM1 type. In such case the power coupled directly into a 62.5-micron fiber could be as high as a few dBm and the adjacent receiver will be saturated. This can cause high bit error rate, link flaps, link down status and eventually irreversible damaged to the device.
3. Mode conditioning patch cords can only convert single-mode to multimode. If you want to convert multimode to single-mode, then a media converter will be required.
4. Another alternative for short reaches within the same location is to use a single-mode patch cable. There will be no saturation over single-mode fiber.
Specifications of Mode Conditioning Patch Cable (Notes:A B C and D,corresponding to A B C and D on Fig.2).
|C→A||850nm-1300nm||≤ 15.0dB(50/125um) ≤ 18.0dB(62.5/125um)|
|C→A||1310nm-1550nm||≤ 2.10dB(50/125um) ≤ 2.60dB(62.5/125um)|
|Return Loss||APC≥60.0dB UPC≥50.0dB||≥35.0dB|
|Operating Temperature||-40 to 85°C||-40 to 185°F|