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Chapter 2: Ethernet Line Cards
AT-SBx81GP24 PoE Line Card
42
The AT-SBx81GP24 PoE Line Card, shown in Figure 17, is a Gigabit
Ethernet switch with Power over Ethernet Plus (PoE+) on all the ports.
Figure 17. AT-SBx81GP24 PoE Line Card
Here are the main features of the line card:
24 10/100/1000Base-T ports
RJ-45 connectors
100 meters (328 feet) maximum operating distance per port
Auto-Negotiation for speed and duplex mode
Automatic MDIX detection for ports operating at 10/100Base-TX,
(Automatic MDIX detection does not apply to 1000Base-T
operation.)
Port Link/Activity (L/A) and PoE+ LEDs
16K entry MAC address table
12 Mb buffer memory
PoE+ on all ports
Up to 30W per port for PoE+
PoE device classes 0 to 4
Jumbo frame support:
– 9710 bytes for ports operating at 10 or 100 Mbps.
– 10240 bytes for ports operating at 1000 Mbps
Non-blocking full wire speed switching on all packet sizes, with two
AT-SBx81CFC400 Controller Fabric Cards
Hot swappable
The cable requirements of the PoE ports on the AT-SBx81GP24 Ethernet
Line Card are listed in Table 18 on page 60.
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