Specifications

Hardware Reference 7
C613-03084-00 REV A
AT-9900 Series Switch Models
This section provides hardware descriptions about individual switch models.
AT-9924T/4SP
Key features:
• Auto-negotiating Multi-layer Gigabit Switch
• Optional AT-ACC01 network processor accelerator card
• 24-port 10BASE-T/100BASE-TX/1000BASE-T (RJ-45 connectors)
• 4-port Small Form Factor Pluggable (SFP) uplink sockets
• Hot-swappable load sharing PSUs
Note Only 24 ports are operational at one time.
The RJ-45 ports 1 to 4 use the same physical interface as the SFP ports 1 to 4.
When a SFP is inserted into a SFP port the corresponding RJ-45 port is disabled.
For example, if a SFP is inserted in SFP port 1 then RJ-45 port 1 is disabled. All
other RJ-45 ports function as normal and when the SFP is removed from port 1
the RJ-45 port 1 is operational.
Figure 1-1: Front panel of the AT-9924T/4SP switch