Extreme Networks WM-4T1i Spezifikationen Seite 242

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242 Extreme Networks Consolidated Hardware Guide
BlackDiamond 6800 Series I/O Modules
Extreme Networks recommends that you reserve 3 dB for losses due to cable splices, connectors, and
operating margin. Table 66 describes the cable attenuation, cable budget, and operating distance for a
variety of cable attentuation ratings for the WDMi module
A minimum of 2 dB attenuation is required to prevent saturation of the receiver.
LEDs
The WDMi module has the following LEDs:
Module status
Channel status
For information about the LEDs and their activity on the WDMi module, see I/O Module LEDs on
page 271.
Software Requirements
The WDMi module requires that you load ExtremeWare version 6.1.5 or later on the switch.
Optical input power maximum -1 dBm
Fiber Optic Cable
Back reflection -25 dB
Table 66: WDMi maximum transmit distances
Cable Attenuation Cable Budget Maximum Distance
0.20 dB/km 9 dB 45 km
0.25 dB/km 9 dB 36 km
0.30 dB/km 9 dB 30 km
Table 65: WDMi optical interface specifications (continued)
Parameter Minimum Typical Maximum
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