Specifications

3.5 Switches
3–46 Network Modules
3.5.1 PEswitch 900TX
The PEswitch 900TX product is a full 802.1D compliant, six-port switched
(personal, 10 Mb/s) Ethernet to FDDI switch. It combines full-performance switched
Ethernet and guaranteed packet integrity with high-performance FDDI server/
network connectivity. Figure 3–15 shows the PEswitch 900TX network module.
The ports are:
• Six front panel 10BaseT (8-pin MJ) Ethernet ports with internal crossover. Each
port is configurable, via software, to connect to the front panel connector, or
alternatively, to one of six internal hub LAN segments.
• An FDDI port that connects through the DEChub 900 MultiSwitch backplane, or
the DEChub ONE-MX FDDI modular PMD ports.
The PEswitch 900TX is a fully compliant IEEE 802.1D switch, and supports full
performance filtering and forwarding across all ports (that is, Ethernet to Ethernet,
Ethernet to FDDI, and FDDI to Ethernet). Full translation of packets between
Ethernet and FDDI (IEEE 802.1i), as well as IP packet fragmentation, is also
supported. In addition, specialized support is offered for non-translating protocols
(IEEE 802.1h) such as AppleTalk and IPX.
Figure 3–15 PEswitch 900TX