Introduction & Specifications
Product Overview
1-2
SpectraComm Ethernet Switch
076R204-000
Installation and Operation Manual
Issue 2
Theory of Operation
Ethernet Switching
Ethernet switching establishes a direct line of communication between two ports and maintains
multiple simultaneous links between various ports. This is a very efficient means of managing
network traffic, in that information is sent directly from the port of origin to only its destination port.
Media sharing is reduced since traffic is constrained to the segment for which it is destined, be it a
server, power user or workgroup.
This technology enables some key benefits over traditional Ethernet bridged and routed networks:
•
Bridges and routers typically have many devices attached to their ports, sharing the available
bandwidth. An ethernet switch can change shared media to dedicated bandwidth; for example,
you can connect either a shared segment (a workgroup) or a dedicated segment (a power user
or server) to its ports.
•
An ethernet switch installation is less complex than a bridge/router configuration. Moves, adds
and changes can be made with ease.
•
Ethernet switches enhances network efficiency, performance and flexibility without modifying
any software or hardware already running on the workstations.
Connectivity
LAN equipment at any site can be connected to the SC-ES’s 10/100Base-T LAN ports, providing
the functionality that is usually associated only with high-end fully managed switches.
•
In the SC-ES 9-Port card, there are eight Front Panel ports (1 - 8) with Port 9 located at the upper
rear RJ45 connector. The device can operate as a stand-alone switch, or can employ Port 9 as a
logical uplink to another switch/hub device to accommodate higher port density requirements.
•
In the SC-ES 18-Port card, there are sixteen Front Panel (1 - 8 and 10 - 17) with two additional
ports (9 and 18) located at the upper and lower rear RJ45 connector, respectively. Ports 9 and
18 can be used as logical uplinks to another switch/hub device in order to accommodate higher
port density requirements.
SC-ES Management
SC-ES device cards can be monitored and managed using standard protocols: locally via the Craft
interface, via password-protected Telnet, or via web-based command line interface (CLI)
commands from the central site or other remote sites. The SC-ES also maintains operational
statistics on the switch and traffic statistics for each of the ports.
SC-ES Security
SC-ES devices are multi-level password-protected and also provide inactivity timers. For periods
of heightened security alert, authorized users can disable individually the HTTP, SNMP and/or
TFTP access to the unit, preventing hacks. Each port on the SC-ES can also be configured for one
of several security modes designed to block ethernet access whenever an illegal MAC address or
cable connect/disconnect is detected.
Summary of Contents for SpectraComm ES
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