Milan e-tbt-hb-1002 ユーザーガイド

The AUI connector provides another port for connecting to a
network via a transceiver or for cascading hubs.  NOTE:
Do not cascade hubs together with an AUI cable!  If
attaching a transceiver through an AUI cable, use only IEEE
approved Ethernet AUI cables.  Maximum distance for an
AUI cable is 50 meters (150’).

Follow these rules when configuring your network:

* When connecting multiple hubs together on a backbone,
you can use the AUI port of your hub; utilizing a transceiver
(TN models E-CX-MC02, 03, 04 and 05) to attach to the
backbone.  A thicknet or thinnet backbone will allow you to
run longer distances between hubs and provide better noise
immunity because the cable is shielded.  In addition, fiber

Media

Maximum

Maximum

Minimum

Maximum

Segment

Number

Segment

Medium

Medium

Type

MAUs per

Length

Propagation

Delay per

Segment

(meters)

Velocity*

Segment
(nano/sec)

Coax
10Base5

100

500

0.77 c

2165

10Base2

30

185

0.65 c

950 

Link
FOIRL

2

1000

0.66 c

5000

10BaseT

2

100***

0.59 c

1000

AUI**1  DTE/MAU

50

0.65 c

257

*c = 3 x 10 to the 8th power, expressed in meters/second
**AUI connection is not a segment
*** Maximum segment length depends on the cable characteristics

The 24 port Ethernet hub provides Power, Link, Fault and
Rear Slot Enabled LED’s, for monitoring convenience.
Power is indicated after the unit is plugged into any AC out-
let (100-240 VAC, 50-60 Hz) and with the rear power switch
turned on.  Link indicates the hub is receiving link pulses
from a 10BaseT compliant device.  Fault LED indicates the
redundancy feature has failed and is not functioning.  Rear
Slot Enabled indicates which optional slots are active when
the redundancy feature is utilized.

The redundancy switch is also located on the hub’s side and
is used for the redundancy feature utilizing the optional slide
in cards.  Both slots must be installed with any combination
of fiber optic or twisted pair slide in cards.

cable. Use only IEEE approved AUI cables.  Check 
the connections.

* The network interface card is improperly configured.  
Refer to users manual; verify proper configuration.

* Another network device is disrupting communica-

tions of the device your are trying to bring on line. 
Remove that device and troubleshoot the problem on 
that line.

This information provides guidelines for integrating 10BaseT
and non-10BaseT compatible hardware for use with the 24
port Ethernet hub in your network.  The following table sum-
marizes the delays for the various network media segments.