Sfp/Esfp Modules - Huawei S2750 Series Hardware Description

S2750 Series Ethernet Switches
Hardware Description
Fiber diameter
Fiber class
Connector type
Transmit optical power Output optical power of an optical module when it is working properly.
Maximum receiver
sensitivity
Overload optical power Maximum average input optical power that the receiver of an optical module can receive
Extinction ratio

4.2 SFP/eSFP Modules

Appearance
Figure 4-2
Issue 04 (2014-03-20)
Diameter of the core of a fiber. According to international standards for optical fibers,
the diameter of a multi-mode fiber is 62.5 um or 50 um, and the diameter of a single-
mode fiber is 9 um.
Optical signals with different wavelengths have their best working windows in different
optical fibers. To help efficiently adjust wavelengths or dispersion features of optical
fibers and change their refractive indexes, the following classes are defined: multi-mode
fiber (G.651), common single-mode fiber (G.652), shifted dispersion fiber (G.653), and
non-zero shifted dispersion fiber (G.655). G.651 and G.652 are commonly used fiber
classes.
Type of the interface on an optical module to accommodate a fiber. Commonly used
connector types are LC (applicable to all the SFP, SFP+, and XFP modules), MPO
(applicable to some of QSFP+ modules), and SC.
Minimum average input optical power that the receiver of an optical module can receive
within a range of bit error rate (BER = 10
within a range of bit error rate (BER = 10
Minimum ratio of the average optical power with signals transmitted against the average
optical power without signals transmitted in complete modulation mode. The extinction
ratio indicates the capability of an optical module to identify signal 0 and signal 1.
shows an SFP/eSFP optical module.
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