10771
Operating environment
Ambient temperature:
32°F to 122°F (0°C to 50°C)
storage temperature:
-20°C to 60°C
Ambient relative humidity:
10% to 95% (non-condensing)
Power supply (internal)
AC power connector:
IEC-type, male recessed, rear of chassis
Power input voltage:
90 to 260 Vac (auto ranging)
Power input frequency:
47-63 Hz
Power consumption:
20 watts max.
Network cable connectors
- for the eight RJ-45 shielded female ports per hub
100Mbps: Category 5 UTP/STP
10Mbps:
Category 3, 4, 5 UTP (
Note:
Speed-sensing does not sense cable type)
Stackable cable
- stacking may be up to four hubs, or ports
A stacking cable with 50-pin “SCSI” male connectors, shielded, 9 inches (23cm)
long, is included with each Magnum DS8-A dual-speed add-on unit.
Switch manual
UP-LINK: MDI-X thumb-operated slide switch, converts RJ-45 port 8 from a regular
(=position) user segment port to a crossover (X position) up-link port for On/off con-
nection to a central hub or another cascaded hub. The up-link port is auto-sensing for
speed, and the up-link works the same at 10Mbps or 100Mbps.
Packaging
Enclosure:
High strength metal. Metal mounting brackets included.
Suitable for wiring closet shelf, wall or desktop mounting.
Dimensions:
9.75in. D x 8.5in. W x 1.4in. 11 (25cm x 22cm x 3.5cm)
Weight:
2.5lb. (1.15Kg)
Cooling method: Fan cooled, internal @ 9cfm
Agency approvals
UL listed (UL 1950), cUL, CE
Emissions:
Meets FCC part 15, class A
Warranty
Three years, return to factory
Federal communication commission
Radio frequency interference statement
This equipment generates, uses and can radiate frequency energy and if not installed and used
properly, that is in strict accordance with the manufacturers instruction, may cause interference
to radio communication. It has been tested and found to comply with the limits for a Class A
computing device in accordance with the specifications in Subpart J of part 15 of ECC rules,
which are designed to provide reasonable protection against such interference when operated
in a commercial environment. Operation of this equipment in a residential area is likely to
cause interference, in which case the user at his own expense will be required to take whatever
measures may be required to correct the interference.
8 Port Hub DS8-A RS
stock no. 288-5796
8 Port Hub DS8-B RS
stock no. 288-5803
Issued March 1998
10771
Dual Speed
Stackable Hubs
Instruction Leaflet
Table of contents
1.0 Introduction __________________________________________________2
1.1 Inspecting the package and product ______________________________________2
1.2 Features and benefits ____________________________________________________2
1.3 Product description
____________________________________________________2
1.4 Stacking the hubs ______________________________________________________4
1.5 Bridge module
________________________________________________________4
1.6 Up-link switch for cascading ______________________________________________5
1.7 Applications ____________________________________________________________5
2.0 Installation ____________________________________________________7
2.1 Locating the dual-speed hubs ____________________________________________7
2.1.1 Table top or shelf mounting ________________________________________7
2.1.2 Wall (or vertical surface) mounting__________________________________7
2.2 Connecting Ethernet Media ______________________________________________7
2.3 Powering the Hubs ______________________________________________________8
3.0 Operation ____________________________________________________8
3.1 Dual-speed functionality
________________________________________________8
3.2 Auto-negotiation and speed-sensing ______________________________________9
3.3 LED description ________________________________________________________9
3.4 Up-link switch ________________________________________________________10
4.0 Troubleshooting ______________________________________________10
4.1 Before calling for assistance ____________________________________________10
4.2 When calling for assistance______________________________________________11
5.0 Technical Specification ________________________________________11
The information provided in
RS
technical literature is believed to be accurate and reliable; however, RS
Components assumes no responsibility for inaccuracies or omissions, or for the use of this information, and all use
of such information shall be entirely at the user’s own risk.
No responsibility is assumed by RS Components for any infringements of patents or other rights of third parties
which may result from its use.
Specifications shown in RS Components technical literature are subject to change without notice.
RS Components, PO Box 99, Corby, Northants, NN17 9RS Telephone: 01536 201234
An Electrocomponents Company
© RS Components 1997
