Long Range Gbic System Budgets - Extreme Networks Summit Summit1i Hardware Installation Manual

Summary of Common Switch Features
The following example disables autonegotiation, configures a port speed of 1000 Mbps, and specifies
full-duplex mode for port 4 on a stand-alone switch:
config ports 4 auto off speed 1000 duplex full
The following example disables autonegotiation, configures a port speed of 1000 Mbps, and specifies
full-duplex mode for port 1 on a G8Xi module located in slot 1 of a modular switch:
config ports 1:1 auto off speed 1000 duplex full
The UTP GBIC is supported on "i" series products only.

Long Range GBIC System Budgets

Measure cable plant losses with a 1550 nm light source and verify this to be within budget. When
calculating the maximum distance attainable, using optical cable with a specified loss per kilometer (for
example, 0.25 db/km), Extreme Networks recommends that 3 dB of the total budget be reserved for
losses induced by cable splices, connectors, and operating margin. Figure 2 shows the total optical
system budget between long range GBICs.
NOTE
The fiber loss budget plus all other penalties must not exceed the total optical system budget.
Figure 2: Total optical system budgets for long range GBICs
19.5 dB
ZX GBIC
22.0 dB
LX70
23.0 dB
LX70
20.0 dB
18.0 dB
ZX GBIC
23.5 dB
19.0 dB
ZX GBIC
21.5 dB
The ZX mini-GBIC is equivalent to the ZX Rev 03 GBIC.
26
ZX GBIC
ZX GBIC
Rev. 03
LX70 LX100
ZX GBIC
LX70
Rev. 03
LX70 ZX GBIC
ZX GBIC ZX GBIC
Rev. 03
Rev. 03
ZX GBIC
21.0 dB
Rev. 03
30.0 dB
LX100
29.0 dB
LX100
23.0 dB
25.0 dB
LX100
24.5 dB
27.0 dB
LX100
24.0 dB
XM_041
Extreme Networks Consolidated "i" Series Hardware Installation Guide