GarrettCom Magnum 20X - Manual (Page 18)

IEEE 802.3 repeater functionality. It
is used to provide connectivity with
a 10BASE5 (ThickNet) backbone or
to any AUI segments. A transceiver
is required when connecting to a
ThickNet segment and the RPM-
AUI supports this convention. The RPM -AUI is also a "universal" Ethernet media
interface as it may be used with a variety of different mini-transceivers to provide
connectivity to any media type.
The RPM -AUI card is equipped with Partition (PART) and Receive (RX) LEDs
which function the same as the identical LEDs on the RPM-BNC (Section 2.3.1 above).
The Magnum RPM-AUI card is also used for connecting Ethernet devices using
standard AUI cabling. In this situation, it is important to consider the AUI segment length
or distance to the attached device.
The maximum transmission distance between a backbone transceiver equipped
with an AUI connector and the Magnum RPM-AUI card will vary. When an AUI cable is
used to connect the Magnum RPM-AUI directly to a backbone transceiver, the maximum
AUI segment length is allowed. If the Magnum RPM-AUI is connected to a transceiver that
has been cascaded from another transceiver, the maximum AUI segment length is reduced.
According to Ethernet standards, the maximum distance from the transceiver AUI
connector and the attached device (Magnum RPM-AUI) is 50m (165 ft.). The AUI
segment maximum length is reduced in cascaded configurations. See the following note.
Important Note: The maximum transmission distance is decreased by 6m (20
ft.) for every additional level of network transceiver device "dropped" or "cascaded" from
the original backbone transceiver tap.
2
1
Magnum RPM-AUI