Specifications

3.4 Bridges
3–42 Network Modules
3.4.2 DECbridge 90FL
The DECbridge 90FL module is a fiber optic version of the DECbridge 90 product.
It is a local Ethernet-to-Ethernet 10BaseFL/FOIRL-compliant bridge that combines
reliability and high-performance in one compact module. Designed to link a
departmental work group to the larger LAN backbone, it features AUI and 10Base
FL/FOIRL compliant ST fiber optic backbone connections, and a ThinWire coaxial
connector for work groups. Figure 3–14 shows the DECbridge 90FL network
module.
Backbone connections are made using ThinWire Ethernet or AUI transceiver cable.
The AUI can support various transmission media such as coaxial and fiber optic
cables. You can be connected to either the ThinWire or the AUI, but not both
simultaneously. The active connection is determined by a slide switch on the front of
the module. It also includes a ThinWire 10Base2 port connector (ThinWire BNC) on
the side panel (available when installed in the stacking unit).
NOTE
When used in the hub or stack, the bridge requires a proxy agent. Also,
when used in the DEChub 90 the bridge must be installed in slot 7 or 8.
Figure 3–14 DECbridge 90FL