3com Hubs and Switches 用户手册
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3
OfficeConnect LED Indicators
Alert
PKT
PWR
COLL
green + link OK, off = link fall, yellow = partition
Port Status
Network Utilization
1
COAX
1%
2%
3%
6% 12% 25% 50% 80%
8
7
6
5
4
3
2
As this front view of
the OfficeConnect Hub
8/TPC illustrates, each
OfficeConnect unit
offers a variety of LED
indicators, including
an Alert LED to allow
quick monitoring of hub
and network activity.
The Alert LED gives
users immediate
notification of
problems, such as
excessive network
use, without requiring
special technical
knowledge.
the OfficeConnect Hub
8/TPC illustrates, each
OfficeConnect unit
offers a variety of LED
indicators, including
an Alert LED to allow
quick monitoring of hub
and network activity.
The Alert LED gives
users immediate
notification of
problems, such as
excessive network
use, without requiring
special technical
knowledge.
Alert LED
(orange)
Alerts you to
excessive net-
work use or
an isolated
(partitioned)
10BASE-T port
and 100BASE-TX
port.
(orange)
Alerts you to
excessive net-
work use or
an isolated
(partitioned)
10BASE-T port
and 100BASE-TX
port.
Power LED
(green)
Indicates that
the power
supply to the
unit is present.
(green)
Indicates that
the power
supply to the
unit is present.
Packet LED
(OfficeConnect
Hub TP4, 8/TPO,
TP400 only)
(yellow)
Flashes each
time a packet
is received on
a port.
(OfficeConnect
Hub TP4, 8/TPO,
TP400 only)
(yellow)
Flashes each
time a packet
is received on
a port.
Collision LED
(yellow)
Flashes each
time a collision
is detected on
the network.
Collisions are
part of normal
network
operation.
(yellow)
Flashes each
time a collision
is detected on
the network.
Collisions are
part of normal
network
operation.
Port Status LEDs (green/yellow)
Indicate the status of each port. If
green, the link between the port and
the next piece of network equipment
is functional. If nothing is connected,
the LED will be off. If yellow, the port
has partitioned due to a fault on that
segment. The coaxial port LED
(where applicable) can only be
yellow or off. It will be yellow if
the port has partitioned or when
the port is not terminated.
Indicate the status of each port. If
green, the link between the port and
the next piece of network equipment
is functional. If nothing is connected,
the LED will be off. If yellow, the port
has partitioned due to a fault on that
segment. The coaxial port LED
(where applicable) can only be
yellow or off. It will be yellow if
the port has partitioned or when
the port is not terminated.
Network
Utilization LEDs
(green/yellow/
orange)
Indicate how much
your network is
being used.
Utilization LEDs
(green/yellow/
orange)
Indicate how much
your network is
being used.
Ethernet Hubs
OfficeConnect Hub TP4
4
OfficeConnect Hub TP4Combo
4
1
1
●
OfficeConnect Hub 8/TPO
8
OfficeConnect Hub 8/TPC
8
1
●
OfficeConnect Hub TP16C
16
1
●
OfficeConnect Hub 8/TPM
8
1
●
●
Fast Ethernet Hubs
OfficeConnect Hub TP400
4
●
OfficeConnect Hub TP800
8
●
●
OfficeConnect Hub TP1200
12
●
●
OfficeConnect Dual Speed Hub 8
Up to
8
Up to
8
8
●
Switches
OfficeConnect Switch 140
4
1
OfficeConnect Switch 280
8
2
2
All
10
OfficeConnect Switch 400
Up to
4
Up to
4
4
All
4
OfficeConnect Switch 140M
4
1
●
●
10BA
SE-T
RJ-45
OfficeConnect Hubs and
Switches at a Glance
Switches at a Glance
10BA
SE-T
Coax
10BA
SE-T
AU
I
100BA
SE-TX
Autonegotiating
full
- and
half-duplex por
ts (switches only)
10/100 Mbps auto-sensing
Ethernet/F
ast Ethernet por
ts
Class I
I F
ast Ethernet
RepeaterNetwork Utilization (L
ED)
Tr
anscend Management
W
eb-based Management
OffceConn D/S 5/8/98 5:24 PM Page 3