QSFP-40G-ER4 Overview

The Cisco 40GBASE-ER4 QSFP Module supports link lengths up to 40km over G.652 single-mode fiber with duplex LC connectors. The 40GE or OTU3 signal is carried over four wavelengths in the 1310nm range. Multiplexing and demultiplexing of the four wavelengths are managed within the device.

Quick Specs

Figure 1 shows the appearance of QSFP-40G-ER4.

QSFP-40G-ER4 Appearance

Table 1 shows the Quick Specs.

Product Code QSFP-40G-ER4
Part Number 02311BKT
Description 40GBase-ER4 Optical Transceiver,QSFP+,40G,Single-mode Module (1310nm,40km,LC)
Form Type QSFP+
Wavelength 1310nm
Interface LC duplex
Cable Type SMF
CDR Support Yes
TX Power -3.7~+4.5dBm
Commercial Temperature Range 0 to 70°C (32 to 158°F)
Max Data Rate 44.6Gbps
Max Cable Distance* 40km**
Optical Components DFB CWDM
DOM Support Yes
Protocols OTN OTU3, 40G Ethernet, Infiniband, Fiber Channel, SATA/SAS3
Receiver Sensitivity <-20.2dBm

Compare to Similar Items

Table 2 shows the comparison of QSFP-40G-ER4, QSFP-40G-iSR4 and QSFP-40G-LR4.

Product Code QSFP-40G-ER4 QSFP-40G-iSR4 QSFP-40G-LR4
Part Number 02311BKT 02310MHR 02310MHS
Description 40GBase-ER4 Optical Transceiver,QSFP+,40G,Single-mode Module (1310nm,40km,LC) 40GBase-iSR4 Optical Transceiver,QSFP+,40G,Multi-mode (850nm,0.15km,MPO)(Connect to four SFP+ Optical Transceiver) 40GBase-LR4 Optical Transceiver,QSFP+,40GE,Single-mode Module(1310nm,10km,LC)
Wavelength 1310nm 850nm 1310nm
Max Data Rate 44.6Gbps 40Gbps 44.6Gbps
Max Cable Distance* 40km** 150m** 10km

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