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10-6 Extreme Networks Consolidated Hardware Guide

Alpine 3800 Series I/O Modules

GM-WDMi Module

Figure 10-4 shows the GM-WDMi module.

Figure 10-4: GM-WDMi module

The GM-WDMi module has one 4 Gbps port, which supports four full-duplex Gigabit

Ethernet channels. The port transmits over a single mode fiber cable using wavelength

division multiplexing. The port uses an SC-APC simplex connector with a

spring-loaded safety cover. APC connectors are polished at an 8

angle to minimize loss

and reflections over extended transmit distances.

The default configuration of the GM-WDMi module is as follows:

• The port is added to the default VLAN as untagged.

• The port inherits the properties of the default VLAN (protocol type, VLANid, and so

forth).

The GM-WDMi module transmits bi-directionally on the fiber cable and then

multiplexes these wavelengths over the single-mode optical fiber.

The total optical system budget for the GM-WDMi module is 12 dB. Measure cable

plant losses with a 1550 nm light source to verify that your cable plant losses are within

the optical budget. Table 10-1 describes the optical specifications for the GM-WDMi

module.

Table 10-1: GM-WDMi Optical Interface Specifications

Parameter Minimum Typical Maximum

Transmitter

Optical output power -5 dBm -3 dBm 1 dBm

Channel 1 wavelength 1495 nm 1501 nm 1507 nm

Channel 2 wavelength 1515 nm 1521 nm 1527 nm

Channel 3 wavelength 1535 nm 1541 nm 1547 nm

38_GMWDM

Module status LEDs

Port status LEDs 4 Gbps port

1 2 ... 167 168 169 170 171 172 173 174 175 176 177 ... 305 306

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Extreme Networks WM-4T1i Especificaciones Pagina 172