Parameters of 100M, Gigabit,and 10G optical transceiver
نوشته شده توسط : ewr

1.Parameters of 100M optical transceiver:

Center wavelength: There are currently three main types:

850nm (MM, multi-mode, low cost but short transmission distance, generally can only transmit 500M);

1310nm (SM, single mode, huge loss during transmission but small dispersion, generally used for transmission within 40KM);

1550nm (SM, single-mode, low loss during transmission but large dispersion, generally used for long-distance transmission above 40KM, and will transmit 120KM directly without relay at most).

Transmission distance: Optical transceivers generally have the following specifications: multi-mode 550m, single-mode 15km, 40km, 80km and 120km, etc.

Interface: 100M SFP optical transceivers are all LC interfaces.

Laser type:

Optical transceivers with transmission distances within 40KM generally use FP lasers;

Optical transceivers with transmission distance ≥40KM generally use DFB lasers.

2.Parameters of Gigabit optical transceiver:

Central wavelength: The central wavelengths of the Gigabit optical transceiver are mainly 1310nm, 1470nm, 1550nm, 1330nm-TX/1270nm-RX. The optical transceiver with the central wavelength of 1550nm is certainly a single-mode optical transceiver, and its transmission distance can reach Above 40km.

Transmission distance: The transmission distance of the Gigabit optical transceiver ranges from 20km to 120km, and the transmission distance of most Gigabit optical transceivers is around 100km.

Interface: Except that the interface of the GBIC Gigabit optical transceiver is normally SC duplex, the interfaces of the remaining 10 Gigabit optical transceivers are LC duplex.

Fiber type: 10 Gigabit optical transceivers are usually used with single-mode fiber, so its fiber type is SMF.

Laser type: The laser types of the Gigabit optical transceiver are mainly DFB 1550nm, DFB BiDi, DFB 1310nm, DFB CWDM, DFB DWDM.

DOM function: Except for GBIC optical transceiver that does not support DOM function, other Gigabit optical transceivers support DOM function. The reason being GBIC optical transceiver is an early optical transceiver.

3.Parameters of 10 Gigabit optical transceiver:

Central wavelength: The central wavelengths of 10 Gigabit optical transceivers are 1470nm, 1550nm, 1590nm, 1330nm-TX/1270nm-RX, of which 1330nm-TX/1270nm-RX are BiDi optical transceivers.

Transmission distance: The transmission distance of 10 Gigabit optical transceivers varies from 20 km to 80 km, but the transmission distance of all 10 Gigabit optical transceivers is 80 km.

Interface: Except that the interface of XENPAK 10 Gigabit optical transceiver is SC duplex, the interface of the other 10 Gigabit optical transceivers are all LC duplex.

Fiber type: The fiber type of the 10 Gigabit optical transceiver is the same as the Gigabit optical transceiver, which is SMF.

Laser type: The laser types of the 10 Gigabit optical transceiver include EML 1550nm, DFB BiDi, EML CWDM, EML DWDM, and DFB CWDM. From the type of laser, we can derive its center wavelength or package type information.

DOM function: 10 Gigabit optical transceivers are equipped with DOM function. This function can help network administrators to monitor all aspects of optical transceiver data in real time. Network administrators can also check these data to ensure that the optical transceiver works normally.

In the application, you should choose 100M optical transceiver, Gigabit optical transceiver or 10G optical transceiver , which mainly depends on the kind of network adapted. For example, if your network is usually 100M Ethernet, you need to use 100M optical transceiver, which is definitely Gigabit Ethernet. Gigabit optical transceivers are required for the network, and 10 Gigabit Ethernet transceivers are used for the 10 Gigabit Ethernet.





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تاریخ انتشار : سه شنبه 17 تير 1399 | نظرات ()
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