GarrettCom magnum Installation And User Manual page 11

Magnum Personal Hubs
Personal Hubs fit easily into the workplace environment. They are
versatile enough to be table-top, shelf or wall-mounted (refer to Section 3 for
installation procedure). All of the wiring connectors are in the same plane so that
wiring space is neat and minimal.
The Personal Hub's RJ-45 ports support connection of up to four (H40A),
five (H50), eight (H80A) or nine (H90) workstations or other network devices over
full length 10BASE-T cable segments. Personal Hubs operate in compliance with
the IEEE 802.3 specification for repeater functionality to perform signal
amplification, re-timing of data packets, and regeneration of preamble bits for each
packet received. Consistent with IEEE 802.3 specifications, Personal Hubs will
detect collisions, extend collision fragments, and automatically partition and re-
connect individual ports in order to keep problems on one segment from causing
downtime elsewhere on the network.
Personal Hubs include LINK and RX LEDs, located on top of the unit
above each RJ-45 port, and one LED for power located at the rear near the external
power supply connection. The location of the LEDs makes it easy to associate the
status LEDs with the corresponding network port.
Each Personal Hubs are supplied one of two external power supply types;
one for AC power input of 115 vac 60 Hz, and one for 230 vac 50 Hz. (Refer to
Sections 1.1 and 3.0 for detailed information concerning the external power
supply.)
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Installation and User Guide (09/01)
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