TM
User Manual
BS-GU2008
Package Contents
The package contains the items shown below. If any items are missing,
please contact the dealer where you purchased the BS-GU2008 .
The appearance of the BS-GU2008 may vary from the illustration.
• Switch (main unit) ...................................................................................................... 1
• Power cable .................................................................................................................. 1
• Rubber feet .................................................................................................................. 4
• Serial number stickers ............................................................................................. 2
• User manual (this document) ................................................................................. 1
• Warranty ........................................................................................................................ 1
Layout
1.Indicators
Indicators are located on the front panel of the product. The functions of
each indicator are shown below.
Link/Act (Green)
On:
Link established
Blinking: Data transfer
Blinking (1-second interval): Loop detected
Off:
Link not established
1000/100/10M (Green or Orange)
On (Green): 1000 Mbps link
On (Orange): 100 Mbps link
Blinking (Green or Orange): Loop detected
Off:
10 Mbps link or no link
Loop (Red)
Blinking: Loop detected
Off:
Normal
Power (Green)
On: Power on
Off: Power off
2. Loop detection switch
Switch loop detection on and off.
3. LAN ports
These are ports for connecting 1000BASET/100BASE-TX/10BASE-T devices.
4.Power connector
Connect the included power cable to this connector.
Loop Detection
This unit can detect network loops that can cause interference in the
network.
What Is a Loop?
If both ends of an Ethernet cable are connected to the same hub, or when
multiple connections exist between two hubs, data may be sent in a loop
around the network, wasting network capacity and never getting to its
destination. This continuously circulating data may interfere with other
network communication.
Loop Detection
･Off:
Loops are not detected.
･On:
If a network loop is detected, the link/act, 1000/100/10M, and loop
LED on the front of this unit blink once per second.
Turning Loop Detection On and Off
1.
Use the switch on the front of the BS-GU2008 to turn loop detection on and
off.
2. Disconnect the power cable, then reconnect it.
Note: The setting isn't changed until power cable is disconnected and
reconnected.
Caution :
・
While loop detection is enabled, the BS-GU2008 will send a loop
detection packet through the network every two seconds. If these
packets disrupt your network in any way, disable loop detection.
・
Loop detection cannot detect or block all types of loops.
When a Loop is Detected
Reconnect the wiring, making sure that no wires are connected in a
loop.
Precautions for Installation
• Do not install the device in an unstable location such as on an unsteady
table or an inclined surface.
• Do not place another hub or object that generates heat on top of this
unit.
• Please route all cables properly to prevent people from tripping over
them.
• Ensure the air vents on the product are not blocked by other equipment
or walls.
• Only use the power cable included with the product. Using other power
cables may result in damage or fire.
Floor or Shelf Mounting
Attach the supplied rubber feet to the bottom corners of the unit before
use.
Mounting to a Metal Surface
To mount to a metal surface, such as the side of a steel desk, use the
"BS-MGK-A Magnet Kit" (sold separately). Attach the supplied rubber feet to
the bottom corners of the unit before using the magnet kit.
Caution:
・
Do not put floppy discs, magnetic cards, or other magnetic storage
media near magnets. Doing so may delete or corrupt data.
・
If the switch is secured by the magnet alone, it should be no more than
75 cm (29.5 in) from the floor.
Mounting to a Wall
To mount the unit to a wall, use 2 screws (not included) with the dimensions
shown below. Install the screws 78 mm (3.1 in) apart and slide the mounting
holes in the base of the BS-GU2008 over them.
Installation
Use screws where this section is
2 mm (0.08 in) or less.
φ6 mm (0.24 in)
2 mm (0.08 in)
3mm (0.12 in)
1. Indicators
2. Loop detection switch
4. Power connector
3. LAN ports
