1
Overview
This chapter describes the features of and summarizes the installation
procedures for the DECrepeater 90C.
Features
The DECrepeater 90C provides the following features:
•
Seven ThinWire ports
•
Standalone or managed operation (on a DECbridge 90 work group
bridge)
•
Installable on a DEChub 90 backplane
The DECrepeater 90C is a 7-port repeater designed for the IEEE
802.3 CSMA/CD networks using the ThinWire Ethernet cable. The
DECrepeater 90C is also compatible with the 802.3 standard for the
10Base2 networks.
The repeater can operate in a standalone configuration or as a managed
repeater installed in Digital’s DEChub 90 Ethernet backplane with
Digital’s DECbridge 90 work group bridge. Figure 1–1 shows a typical
configuration of the DECrepeater 90C in an Ethernet local area network
(LAN).
If you use the DECrepeater 90C as a standalone unit, it operates as a 7-
port unmanaged repeater and uses a separate power supply. The modular
power supply connects to a 7-pin connector on the repeater and comes in
two versions, for use with 120 Volt or 240 Volt power outlets.
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