Safety Information; Preparing To Install Or Replace A Gbic - Extreme Networks Alpine 3808 Hardware Manual

Table 15 lists the minimum attenuations that are required by each long range GBIC to prevent saturation
of the receiver.
Table 15: Minimum attenuation requirements
Transceivers
The ZX mini-GBIC is equivalent to the ZX Rev 03 GBIC.

Safety Information

Before you install or replace a GBIC, read the safety information in this section.
CAUTION
GBICs can emit invisible laser radiation. Avoid direct eye exposure to beam.
GBICs are class 1 laser devices, and they operate at 5 V. Use only Extreme-approved devices.
Remove the SC fiber-optic or the RJ-45 connector from the GBIC prior to removing the GBIC from the
I/O module or the switch.

Preparing to Install or Replace a GBIC

This section describes the preparation steps that you must perform before inserting and securing a
GBIC.
CAUTION
GBICs can emit invisible laser radiation. Avoid direct eye exposure to beam.
To ensure proper installation, complete the following five tasks before inserting the GBIC:
1 Inspect and clean the fiber tips, coupler, and connectors.
2 Prepare and clean an external attenuator, if needed.
3 Calculate the link budget.
4 Do not stretch the fiber.
5 Make sure the bend radius of the fiber is not less than 2 inches.
Extreme Networks Consolidated Hardware Guide
Receivers
GBIC Type LX70
LX70 10 dB
ZX (prior to 0 dB
Rev 03)
ZX Rev 03 8 dB
LX100 11 dB
ZX (prior to
Rev 03) ZX Rev 03
10 dB 10 dB
0 dB 0 dB
8 dB 8 dB
11 dB 11 dB
GBIC Type and Hardware/Software Support
LX100
11 dB
8 dB
9 dB
12 dB
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