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Chapter 2: Overview
3. Click on the “Resources” tab on the product page, and select the document you wish to download.
If you have any trouble accessing the Black Box site to download the manual, you can contact our Technical Support
at 724-746-5500 or info@blackbox.com.
2.4 Hardware Description
1000BASE-T Ports
The switch includes 10, 26, or 48 1000BASE-T RJ-45 ports. All RJ-45 ports support automatic MDI/MDI-X operation, auto-negoti-
ation of speed and flow control, so the switch automatically select the optimum data rate and transmission.
SFP Transceiver Slots
The LPB2910A, LPB2926A, and LPB2952A switches support two or four Small Form Factor Pluggable (SFP) transceiver slots. The
LPB2910A shares two SFP slots with RJ-45 ports 9 and 10. The LPB2926A shares two SFP slots with RJ-45 ports 25 and 26. If an
SFP transceiver (purchased separately) is installed in a slot and has a valid link on the port, the associated RJ-45 port is disabled.
The LPB2952A has four 1G/10G SFP slots on ports 49 through 52.
Supported SFP transceivers are listed in Section 2.4.4.
Port and System Status LEDs
The switch has an LED display panel that indicates system and port status and activity to simplify installation and network
troubleshooting. The LEDs are located on the left side of the front panel and are described in Section 2.4.5.
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