Full-Duplex - Extreme Networks Summit4 Hardware Installation Manual

Summit Switch Overview
Table 1-3 describes the specifications for the 1000BASE-LX70 interface.
Table 1-3: 1000BASE-LX70 Specifications
Parameter
Transceiver
Optical Output Power
Center Wavelength
Receiver
Optical Input Power Sensitivity
Optical Input Power Maximum
Operating Wavelength
*The transmitter output power level for the 1000BASE-LX70 is +5 dBm. The maximum allowable receiver input power level is
-3 dBm. Therefore, there is a minimum of 8 dB loss required for the link to operate without errors. This minimum required loss
can be achieved using a fiber length of 32 km (0.25 dB/km provides 8 dB loss), or by adding 10 dB of fixed optical attenuator
at the receiver end.

Full-Duplex

The Summit switch provides full-duplex support for all ports. Full-duplex allows
frames to be transmitted and received simultaneously and, in effect, doubles the
bandwidth available on a link. All 10/100/1000 Mbps ports on the Summit switch
autonegotiate for half- or full-duplex operation. Gigabit Ethernet and 100BASE-FX ports
operate in full-duplex mode, only.
1-6
Minimum Typical
0 dBm 3 dBm
1540 nm 1550 nm
-20 dBm
1200 nm
Maximum
5 dBm*
1560 nm
-3 dBm
1560 nm
Summit Switch Hardware Installation Guide