Hardware Installation and Reference Guide Appendix
80
Standard Cat-5 and above unshielded or shielded twist pairs
For SFP modules with a maximum cabling distance of over 40 km (including 40 km), install an attenuator to avoid overload when
using short fiber-optic cables:
The SFP module is a laser device. Please do not look into the laser beam directly.
To keep the SFP module clean, please make sure that the unused ports remain capped.
Table 7-5 Pairing Models of the 1000 Mbps BIDI Module
BIDI modules must be used in pairs. If GE-SFP-LX20-SM1310-BIDI is used at one end, then GE-SFP-LX20-SM1550-BIDI must be
applied to the other end.
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