H3C Technologies H3C S12500 Series Switches - Manual (Page 35)

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Models and specifications
Table 25 Specifications for QSFP+ transceiver modules that use LC connectors
Model
Central
wavelength
(nm)
Fiber
mode
Fiber
diameter
(μm)
Transmission
distance
Optical parameters
Transmit
power
Receive
power
QSFP-40G-LR4-
WDM1300
Four lanes:
• 1271
• 1291
• 1311
• 1331
SMF 9/125
10 km (6.21
miles) –7 dBm to
+2.3 dBm –13.7 dBm to
+2.3 dBm
QSFP+ cable
Figure 20 QSFP+ cable
(1) Plug (2) Pull latch
Models and specifications
Table 26 Specifications for QSFP+ cables
Model Length Data rate Type Remarks
LSWM1QSTK0 1 m (3.28 ft)
40 Gbps QSFP+ cable
Used for interconnecting
40-Gigabit QSFP+ ports
LSWM1QSTK1 3 m (9.84 ft)
LSWM1QSTK2 5 m (16.40 ft)
QSFP+ to SFP+ cable
One end of a QSFP+ to SFP+ cable provides a QSFP+ module, and the other end provides four SFP+
modules.