
170 Extreme Networks Consolidated Hardware Guide
Alpine 3800 Series I/O Modules
Software Requirements
The FM-24Ti module requires that you load ExtremeWare software version 6.1.7 or later and BootROM
6.5 or later on your switch.
FM-24SFi Module
Figure 81 shows the FM-24SFi module.
Figure 81: FM-24SFi module
The FM-24SFi module has 24 100 Mbps Ethernet ports, using standard MT-RJ connectors. The FM-24SFi
module supports 100BASE-FX in single mode only.
The default configuration of the FM-24SFi module is as follows. All ports:
• Are added to the default VLAN as untagged.
• Inherit the properties of the default VLAN (protocol type, VLANid, and so forth).
• Operate in 100 Mbps, single mode. Half-duplex mode is not supported.
The total optical system budget for the FM-24SFi module is 11 dB. Measure cable plant losses with a
1310 nm light source to verify that your cable plant losses are within the optical budget. Table 48
describes the optical specifications for the FM-24SFi module
.
LEDs
The FM-24SFi module has the following LEDs:
• Module status
• Port status
Table 48: FM-24SFi optical interface specifications
Parameter Minimum Typical Maximum
Transceiver
Optical output power -20 dBm -14 dBm
Center wavelength 1510 nm
Receiver
Optical input power sensitivity -31 dBm
Optical input power maximum -8 dBm
Operating wavelength 1510 nm
General
Total system budget 11 dBm
FM-24SFi
Module status LED
242322212019181716151413121110987654321
100 Mbps ports
with status LEDs
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