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DS508.fm Page 3 Friday, January 30, 1998 3:46 PM
Product Illustrations
Front Panel of the Model DS508 Hub
Auto 10/100 Mbps
DUAL SPEED
8
PORT
Dual Speed Stackable Hub
10/100Mbps
1
Collision
Utilization%
100M
10M
100 Mbps
Power
1
10
20 >40
10 Mbps
Front Panel of the Model DS516 Hub
100 Mbps Collision LED
100 Mbps
Utilization LEDs
Auto 10/100 Mbps
DUAL SPEED
16
PORT
Dual Speed Stackable Hub
1
10/100Mbps
Collision
Utilization%
100
10
100 Mbps
Power
Data
1
10
20
>40
10 Mbps
9
10 Mbps
Utilization LEDs
10 Mbps Collision LED
Power LED
Front-panel LEDs
The Model DS508 and DS516 hubs provide front-panel LEDs for
monitoring individual ports and hub status. The following table
describes the front-panel LEDs and their functions.
Label
Color Activity Description
Power
Green
On
Collision
10 Mbps
Amber
On
100 Mbps
Amber
On
Utilization%
10 Mbps
Green
Blinking
100 Mbps
Green
Blinking
10M or 100M
Green
On
Link/Receive
(built into each
Off
vista RJ-45
network port)
Blinking
DS508
MODEL
2
3
4
5
6
7
8
100
10
On=Link, Blinking=Receive
On=Link, Blinking=Receive
Normal/Uplink
vista RJ-45
network ports
DS516
MODEL
8
On=Link, Blinking=Receive
100
10
On=Link, Blinking=Receive
Normal/Uplink
16
Normal/Uplink
push button
8091FA
Power is supplied to the hub.
Data collision is occurring on the
10 Mbps network segment (some
collisions are normal).
Data collision is occurring on the
100 Mbps network segment
(some collisions are normal).
Indicates the amount of data
traffic on the 10 Mbps segment.
(If a 100 Mbps user is sending
data to a 10 Mbps user, 10 Mbps
utilization will be high.)
Indicates the amount of data
traffic on the 100 Mbps segment.
A link is established successfully
between the hub and the PC.
No data link is established and/or
the cable is not connected, is
defective, or is the wrong type.
There is incoming data on the
port.
Vista RJ-45 Network Ports with Built-in LEDs
The front panel of the Model DS508 hub provides 8 vista RJ-45
network ports, and the Model DS516 hub provides 16 vista RJ-45
network ports. These standard RJ-45 connectors accept two-pair or
four-pair Category 5 unshielded twisted-pair (UTP) copper wiring
(only two pairs are used). The RJ-45 connector uses an 8-pin interface.
Two LEDs are positioned at the top corners of each RJ-45 connector.
The left indicator is the 100 Mbps Link/Receive LED, and the right
indicator is the 10 Mbps Link/Receive LED.
vista RJ-45
network ports
100M
Rear Panel of the Model DS508 and Model DS516 Hubs
Cascade Up connector
Terminator LED
10/100 Mbps Bridge LED
Cascade Up
Cascade Down
10/100 Mbps
Bridge
Terminator
Cascade Down connector
Rear Panel
The rear panel of a Model DS508 or Model DS516 hub has two LEDs,
one labeled Terminator and one labeled 10/100 Mbps Bridge. The
Terminator LED indicates whether or not the built-in terminator in that
hub is active. The 10/100 Mbps Bridge LED indicates which hub has
the active bridge.
Site Preparation
Before you begin installing the hubs, prepare the installation site. Make
sure your operating environment meets the operating environment
requirements of the equipment.
Characteristic Requirement
Temperature
Ambient temperature between 0° and 40° C
(32° and 104° F). No nearby heat sources such as
direct sunlight, warm air exhausts, or heaters.
Humidity
90% maximum relative humidity, noncondensing.
Ventilation
Minimum 2 inches (5.08 cm) on all sides for
cooling.
Adequate airflow in room or wiring closet.
Operating
At least 6 feet (1.83 m) to nearest source of
conditions
electromagnetic noise (such as photocopy machine
or arc welder).
Service access
Minimum 12 inches (19.68 cm) front and back for
service access and maintenance.
Front and back clearance for cables and wiring
hardware such as punchdown blocks.
Power
Adequate power source within 6 feet (1.83 m).
Tabletop
Flat area approximately 13.0 inches (33.0 cm) by
requirements
8.0 inches (20.3 cm).
Rack
Standard 19-inch (48.26 cm) EIA equipment rack,
requirements
with supplied mounting bracket hardware; 1.0 EIA
rack-mount spaces needed for each hub.
Wiring hardware
Wiring hardware, such as punchdown blocks or
patch panels, should be complete before installing
the hub.
3
10M
8152FA
Power receptacle
100-240 VAC 50-60 Hz 0.5A
8153FA
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