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7248 Standard 4 CO Line x 8 Digital Extension Module
48V Power Supply
a backlit keypad
there are either SFP+ or 10GBASE-T uplinks
24 Port Switch
3Com SuperStack 3 4500 PoE Switch 3CR17571-91 Handsets 7248 Standard 4 CO Line3Com SuperStack 3 4500 PWR Description: The 3Com 3C17571 91 SuperStack 3 4500 PWR switch is a twenty six port, fast Ethernet (10 100 Mbps) switch. This stackable, rack mountable switch features PoE capabilities so you can power your 802. 3af compliant devices. A perfect choice for your telephony deployment, the 3C17571 91 switch also has dual Gigabit uplink ports that allow high speed connectivity to your servers and other important networking
US$ 66.99
US$ 55.02
US$ 64.90
US$ 55.02
