Phoenix Contact 1144175, User Manual, Page: 28 / 40

FL SWITCH EP74…
28/40
PHOENIX CONTACT 4083_en_A
Wear finger cots or gloves. Your hands may look clean, but dirt and oils on them can dam-
age the fiber and contaminate connectors.
Never use the fiber pigtail to pick up or support the weight of the device. Keep both the de-
vice and the optical connector together in your hand(s).
The fiber is made of a very pure expensive glass. Treat it with the same care that would be
used when handling expensive crystal glass.
Do not allow kinks or knots to develop in the fiber. Do not pull on the fiber when kinks or
knots are present. Pulling will only cause knots, kinks, and curls to tighten and exceed the
minimum bend radius.
Always use the correct tools for stripping and cleaving the fiber. It will save time and reduce
breakage caused by scratches.
Follow all ESD precautions.
5.5.2 SFP application considerations
SFP modules are designed to common interface and mechanical international standards.
The standards specify a minimum range of performance. This minimum range may not be
adequate for the most demanding redundancy failover times or nano second level time crit-
ical applications such as PTP. The SFP’s recommended in the accessories section, have
been screened to offer optimal performance. While the use of other SFPs may be compati-
ble electrically, the performance may not meet the ns responsiveness requirements of PTP,
especially the IEEE power profile.
10 Gigabit SFP compatibility
The 10 Gigabit industrial SFP technology is relatively new. Variances in technology impact
compatibility with the switch. The Phoenix Contact 10 Gig SFPs, recommended in the ac-
cessories section, use the SGMII 10 Gigabit SFP technology required for compatibility with
the FL SWITCH EP74… switch.