| The DES-6510 is a 2 port RJ-21 Telco 50 Module for the D-Link DES-6500 Chassis switch. This module supports up to 24 10BASE-T/100BASE-TX ports and is fully compliant with IEEE 802.3, and 802.3u standards. When combined with the DES-6506 24-port RJ-21 to RJ-45 patch panel, an additional 24 RJ-45 10/100 ports are at your disposal. This space saving module is perfect for those who need additional network support without the overhead of adding multiple blades to your chassis. The DES-6510 features IEEE 802.3x compliant Flow Control support for Full-duplex, back pressure Flow Control support for Half-Duplex, and full auto-negotiation and auto MDI/MDI-X cross over on all ports. The DES-6510 includes LED light indicators that displays power, port speed, link, and activity. | 
