Allied Telesis AT-SB*81CFC960, Руководство по установке

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Chapter 2: Ethernet Line Cards
44 Section I: Hardware Overview
AT-SBx81GP24 PoE Line Card
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-SBx81CFC960 Controller Fabric Cards
 Hot swappable
The cable requirements of the PoE ports on the AT-SBx81GP24 Ethernet
Line Card are listed in Table 19 on page 66.