QSFP Optical Transceivers
Specifications
Parameter Value Notes
Tx optical power (per lane)
l Minimum: –9.4 dBm
l Maximum:+2.0 dBm
Rxoptical power (per lane)
l Minimum: –12.7 dBm
l Maximum:+2.0 dBm
Supported data rates
l 4x14.025 Gb/s (4x16G
FC)
l 4x25.78125 Gb/s (4x25
GbE)
l 4x27.95 Gb/s
l 4x28.05 Gb/s (4x32G
FC)
l 103.125 Gb/s (100
GbE)
l 111.81 Gb/s (OTU4)
l 112.2 Gb/s (128G FC)
Electrical interface
l CAUI4 (28) for an
aggregate 100 GbE
service in
accordance with
IEEE 802.3ba/bm
l OTL4.4 for an
aggregate OTU4
service in
accordance with
ITU-T G.709
l Control/
management
interface: I
2
C
Optical lanes wavelength
l Minimum:1295 nm
l Maximum:1325 nm
Maximum link distance 500 m In accordance with
IEEE 802.3bm or
separate MSA
Optical Modulation Amplitude
Tx power (per lane)
l Minimum: –7.2 dBm
l Maximum: +2.2 dBm
Optical Modulation Amplitude
Rx power (per lane)
Maximum: +2.2 dBm
Maximum laser off mode per
optical lane Tx power (per
lane)
–20 dBm
Power measurement accuracy ±3 dB
Table 89: Specifications — QSFP28/112G/PSM4/SM/MPO
FSP 3000R7 High-Density Subshelf Guide - R17.2 - Issue:B 158