QSFP ports are fixed speed 16 Gbps ports designed to be used with specialized
quad (4x16) connections and cables. They support only SWL.
The ports are universal and self-configuring, capable of becoming F_Ports (fabric
ports), FL_Ports (fabric loop enabled), or E_Ports (expansion ports).
The ports meet all required safety standards.
Data transmission ranges
Table 24 provides the data transmission ranges for different transceivers, cable
types, and port speeds.
Note:
There is no LWL or ELWL version of the mSFP or QSFP transceiver.
Table 24. Supported optics, speeds, cables, and distances
Transceiver
type
Form factor
Speed
Multi-Mode Media Maximum Distance
Single Mode
Media
Maximum
Distance
62.5 microns
(OM1)
50 microns
(OM2)
50 microns
(OM3)
50 microns
(OM4)
9 microns
SWL
mSFP/SFP+
2 Gbps
150 m (492
ft.)
300 m (984
ft.)
500 m (1640
ft.)
N/A
N/A
mSFP/SFP+
4 Gbps
70 m (229 ft.) 150 m (492
ft.)
380 m (1264
ft.)
400 m (1312
ft.)
N/A
mSFP/SFP+
8 Gbps
21 m (68 ft.)
50 m (164 ft.) 150 m (492
ft.)
190 m (623
ft.)
N/A
SFP+
10 Gbps
33 m (108 ft.) 82 m (269 ft.) 300 m (984
ft.)
550 m (1804
ft.)
N/A
mSFP/SFP+
16 Gbps
15 m (49 ft.)
35 m (115 ft.) 100 m (328
ft.)
125 m (410
ft.)
N/A
QSFP
4 x 16 Gbps
N/A
50 m (164 ft.) N/A
N/A
N/A
LWL
SFP+
8 Gbps
N/A
N/A
N/A
N/A
10 km (6.2
mi.)
SFP+
10 Gbps
N/A
N/A
N/A
N/A
10 km (6.2
mi)
ELW
SFP+
2 Gbps
N/A
N/A
N/A
N/A
30 km (18.6
mi)
SFP+
4 Gbps
N/A
N/A
N/A
N/A
30 km (18.6
mi)
SFP+
8 Gbps
N/A
N/A
N/A
N/A
25 km (15.53
mi)
Power cords
Two power cords for connecting between the SAN768B-2 and the power
distribution units on the 2109 C36 cabinet are shipped with the product. Two
additional power cords are provided if the optional upgrade power supply feature
is ordered (Feature Code 7880). See the
IBM TotalStorage SAN Cabinet 2109 Model
C36 Installation and Service Guide
for information on connecting the cabinet to the
facility power source. If the stand-alone feature is ordered for the SAN768B-2, then
Appendix A. Product specifications
129
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