3Com OfficeConnect 3CDSG8 Installation Manual page 3

ABOUT YOUR SWITCH
OfficeConnect Managed Gigabit Switch - Front
Port Status
Power Status
Module 1 2 3 4 5
Active
Green = 1000M, Yellow = 10/100M, Flash = Activity
1 2 3 4
1 Power LED
Green
Indicates that the Switch is receiving power from the power adapter. If the LED is off
there may be a problem with the adapter.
Refer to Problem Solving.
2 Status LED
Green/Yellow
This LED is used to indicate the status of the system. When this LED is green and not
flashing, the system is operating normally. When the switch is booting up and during
firmware upgrades the LED will flash green. If the system has failed the Power On Self
Test (POST) the LED will illuminate yellow.
3 Module Active LED
Green
This LED is used to indicate that an SFP module is inserted and is active.
4 Eight/ Port Status LEDs
Green (1000 Mbps link) / Yellow (10 or 100Mbps link)
If the LED is on, the link between the port and the next piece of equipment is OK. If
the LED is flashing, the link is OK and data is being transmitted or received. If the LED
is off, nothing is connected or the connected device is turned off, or there is a problem
with the connection (refer to the Problem Solving section).
5 Duplex LEDs
Green (10/100/1000 Mbps, full duplex) /
Off (10/100 Mbps, half duplex)
3CDSG8
Duplex
On = Full
Off = Half
6 7 8/SFP 1 2 3 4 5 6 7 8
OfficeConnect Managed Gigabit Switch
5
OfficeConnect Managed Gigabit Switch - Rear
CONSOLE
POWER SFP
6 7 8
6 Power Adapter Socket
Only use the power adapter that is supplied with the Switch.
7 SFP Port
1000BaseLX (3CSFP92) and 1000BaseSX (3CSFP91) transceivers are supported. Use
this interface to allow your Switch to connect across distances greater than 100m or
where electrical isolation is required. Appropriate multimode fiber cables will also be
required (not supplied).
SFP transceivers are hot-insertable and hot-swappable. You can remove them
from and inset them without having to power down the switch.
Use of non-3Com SFPs is not recommended. 3Com cannot guarantee
operation of the switch if non-3Com SFPs are used.
8 Console Interface
Use the supplied DB-9 to RJ45 serial cable to connect to the switch's command line
interface. Default Settings are 38,400 baud, 8 data bits, no parity, no flow control.
9 10BASE-T/100BASE-TX/1000BASE-T Ports
Use suitable TP cable with RJ-45 connectors. You can connect your Switch to a work-
station, or any other piece of equipment that has 10BASE-T/100BASE-TX/1000BASE-T
connectivity. Each port is capable of autosensing for 10 Mbps, 100 Mbps or 1000 Mbps
operation. All ports have an automatic MDI/MDIX feature, which means either
straight-through or crossover cable can be used to connect to any port.
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