VTX1100

The PACMON VTX1100 is a fully integrated 8-port Ethernet packet concentrator designed to support Home Networking. It is ideal for Multiple Dwelling Units (MDU) application. PACMON VTX1100 provides features, normally not associated with plug-and-play technology, without equiring an external processor to facilitate their utilization.

PACMON VTX1100 begin operating immediately at power-up, learning addresses automatically, and forwarding packets at full wire-speed to any of its eight output ports or the uplink expansion port. At power-up, VTX1100 configures itself from the EEPROM, and can then provide port trunking, port-based VLANs, and Quality of Service (QoS) capabilities, usually associated only with managed switches.

The proprietary built-in intelligence of the VTX1100 allows it to recognize and offer packet prioritization QoS. Packets are prioritized based on their layer 2 VLAN priority tag or layer 3 Type- Of-Service/ Differentiated Services (TOS/DS) field. This priority of VTX1100 can be defined as transmit and/or drop priority.

The PACMON VTX1100 can be used to create an 8-port unmanaged switch with one WAN router port by adding a CPU (ARM or MPC 850) connected to the additional MII port (port 8). The only external components needed for a low cost MDU system are the Home PNA physical layer transceivers and a single SSRAM per VTX1100.

Operating at 50Mhz internally, and with a 50Mhz interface to the external SSRAM, the VTX1100 sustains full wire-speed switching on all nine ports. When the system supports 8 ports of 1M Home PNA PHY with the 10M Serial uplink, the system clock of VTX1100 can be operated to 20Mhz and still achieve full wire speed switching on all nine ports.

The VTX1100 is packaged in a small 208 pin Plastic Quad Flat-Pak (PQFP) package.