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40G Dual Port Multi Mode

40G Dual Port Multi Mode


The 850nm 40G Dual QSFP+ SR4 quad port bypass module is designed as alternative 40Gbps dual QSPF+ SR4 transceiver. Its innovated design able the fiber bypass function become selectable within single PCI card. The 850nm 40G Dual QSFP+ SR4 quad port bypass module is design expressly for Intrusion Prevention System (IPS) provides complete visibility to network traffic, It also introduces a point of failure should the IPS lose power, cable fail or application freeze.

This interconnecting system include dual ways transceivers offers 4 channels and maximum bandwidth of 40Gbps. It integrates four data lanes in each direction with 40 Gbps aggregate bandwidth. Each lane can operate at 10.3125 Gbps up to 100 m using OM3 fiber or 150 m using OM4 fiber. The optical interface uses a 12/8-fiber  MTP® (MPO) connector.


.Compliant with 40G Ethernet
.IEEE 802.3ba 40GBASE-SR4 standards
.Compliant with SFF-8436 QSFP+ specification Revision 3.5
.Unretimed XLPPI electrical interface
.Utilizes a standard 12/8 line optical fiber with MP-MTP optical connector
.Link up to 100m using OM3 MMF
.Laser Class 1 Product with comply with Requirements of IEC 60825-1 and IEC 60825-2


.40GbE and 40G-IB-QDR / 20G-IB-DDR / 10G-IB-SDR interconnects
.Client-side 40G Telecom connectionss
.4G/8G/10G fiber Channel
.STTA/SAS Storage
.In-Line Sercurity
.Web Acceleration Apliances


Parameter Symbol Min. Typ. Max. Unit Note


Center Wavelength, each lane λC 840 860 nm
Spectral Width – RMS Δλ 0.65 nm
Average Output Optical Power, each lane  Po -7.6 2.4 dBm   1
Optical Extinction Ratio ER 3.0 dB
Output Optical Modulation Amplitude,

per lane

OMA -5.6 3.0 dBm   1
Difference in Power between any Two Lanes in OMA 4.0 dB   1
Transmitter and Dispersion Penalty,

each lane

  TDP 3.5 dB
Relative Intensity Noise RIN -128 dB/Hz
Disable Output Optical Power PO-OFF -30 dB
Optical Return Loss Tolerance                             12 dB
Eye Mask Coordinate:

X1, X2, X3; Y1, Y2, Y3

Specification Value:

0.25, 0.4, 0.45; 0.25, 0.28, 0.4

UI   2


Center Wavelength, each lane λC 840 850 860 nm
Damage threshold 3.4 dBm
Average Receiver Power, each lane Pin -11.0 2.4 dBm   3
Stressed Sen

itivity (OMA)

-5.4 dBm   3
Receiver Reflectance -12 dBm
LOS Assert PA -30 dBm
LOS De-Assert PD -7.5 dBm
LOS Hysteresis PA-PD 0.5 1 3.0 dB

Optical Bypass Switch

Center Wavelength λC 670 850 980 nm
Insertion Loss (Normal Mode) IR -4.0 0 dB   4
Insertion Los

(Bypass Mode)

IRL -4.0 0 dB   5
Return Loss (Bypass Mode) ORL 30 dB


1. Output power is power couples into a OM3 50/125um Multi-mode fiber (MMF).
2. Hit ratio= 5×10E-5 per sample.
3. Measured with 10.3125Gbps of PRBS-31 at 10-12 BER.
4. Normal Mode (Bypass Mode Off).
5. Bypass Mode (Normal Mode Off).