Allied Telesis AT-MR820TR - Manual (Page 23)

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Chapter 1
Product Description
Overview
Allied Telesyn’s multiport AT-MR420TR/AT-MR820TR Micro
Repeaters represent a compact, inexpensive solution for Local Area
Network (LAN) applications.
AT-MR420TR/AT-MR820TR Micro Repeaters combine 10 Mbps of
10Base-T Ethernet connectivity with the same features and
functionality of larger, more expensive repeaters. At the same time,
they support full-length cable segments with the maximum number of
supported devices allowed within IEEE standards.
While identical in structure, the AT-MR420TR Micro Repeater differs
from the AT-MR820TR Micro Repeater in that the former has 4
Shielded/Unshielded Twisted Pair (STP/UTP) ports whereas the latter
has 8 STP/UTP ports. You can use any one of the STP/UTP ports for
connection to a 10 megabit Ethernet node using Category 3-5 STP/UTP
cabling. The Uplink port provides cascading capabilities to the second
10Base-TX Ethernet hub.
AT-MR420TR Faceplates
Figure 1 and Figure 2, respectively show the front and back panel of
the AT-MR420TR and AT-MR820TR Micro Repeaters. The front panel
consists of eight Network Load LEDs indicating the percentage of
network utilization, and 16 or 8 (depending on version) Link and
Receive status LEDs for each network port. Three additional LEDs
indicate Activity, Collision, and Power for the repeater itself.
MRx20TR(STP/UTP)_BookA Page 1 Thursday, April 3, 1997 5:24 PM