40G QSFP+ SR4 Optical Module

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Transceivers support all protocols used at different data transmission rates:

OC-3 STM-1 SDH FE at up to 155 Mbit/s;
OC-12 STM-4 SDH at up to 622 Mbit/s;
GBE FC at up to 1.25 Gbit/s;
OC-48 STM-16 SDH GBE FC at up to 2.5 Gbit/s;
GBE FC at up to 4.25 Gbit/s;
10GbE OC-192|STM-64 at 10Gbit/s;
40GbE, STM- 256|OC-768 and OTU3 tri-rate serial signal transport
100GbE,1310nm 4X25G LAN WDM EML and OTU4 tri-rate serial signal transport


CWDM|DWDM Active and Passive systems;
transceivers of CFP|SFP|SFP+, XFP|QSFP+ and other form factors;
components and materials for fiber-optic communication networks ;
welding and measuring equipment for optical fibers by leading manufacturers.
Depending on wavelength and rate of the transmitted signal in module transmitters, lasers of various types can be installed:
FP (Fabry-Perot) laser; EML (Electroabsorptive Modulated Laser);
VCSEL (Vertical Cavity Surface Emitting Laser);
DFB (Distributed Feedback) laser;
APD (Avalanche Photo Diode) laser.

To carry out the on-line monitoring, DDM (Digital Diagnostic Monitoring) function is used. The DDM function allows for real-time control of the following parameters: input signal (RX) power, output signal (TX) power, module temperature parameters. Tinout transceivers are compatible with the equipment of widespread international vendors such as Cisco,HP,Juniper,3com,Extreme,Huawei,Alcatel,Netgear,D-link,Linksys and others, and support the operation of the majority of data transmission protocols.
SFP Definition from Tinout
(Small Form-factor Pluggable) A small transceiver that plugs into the SFP port of a network switch and connects to Fibre Channel and Gigabit Ethernet (GbE) optical fiber cables at the other end. Superseding the GBIC transceiver, SFP modules are also called "mini-GBIC" due to their smaller size. By choosing the appropriate SFP module, the same electrical port on the switch can connect to fibers of different types (multimode or singlemode) and different wavelengths. If the fiber is upgraded, the SFP module is replaced.

The SFP converts the serial electrical signals to serial optical signals and vice versa. SFP modules are hot swappable and contain ID and system information for the switch.

Combo SFP Ports
Combo ports are paired with Ethernet ports. For example, if an SFP transceiver is plugged into SFP port 24, then Ethernet port 24 is disabled even if a cable is plugged in.

XFP and SFP+ for 10 Gigabits
Larger than SFP, XFP transceivers were the first to handle 10 Gigabit Ethernet optical lines, because SFP supported only up to 4.25 Gbps. The same module size as SFP, SFP+ was later introduced to handle 10 Gbps but required more circuitry in the host device. As a result, SFP+ ports are mostly found in plug-in cards for servers and enterprise switches. See transceiver and GBIC.

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