10Mbps Ethernet Hub
Federal Communications Commission Statement
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. This equipment has been tested and found to comply with the limits for a class A computing device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful 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 are necessary to correct the interference.
CE Declaration of conformity :
This equipment complies with the requirements relating to electromagnetic compatibility, EN 55022 class A for ITE and EN 50082- 1, the essential protection requirements of Council Directive 89/336/EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility.
This series products are compact size 10Mbps Ethernet hubs, there are two models In this series:
Model number is
Note: The model name / model number is shown on the label at the bottom side of the hub.
This user guide describes the features, installation and operating instructions of this mini hub.
The AcerHub 528B/528T package contains the following items:
•One AcerHub 528B or 528T Hub
•One AC Power Adapter, output is DC 7.5V, 1000mA
•This User’s Guide
•Four Pieces of Rubber Foot
•Two Pieces of Tapping Screw
•Two Pieces of Nylon Screw Anchor
Features of AcerHub 528B/528T
•Comply with IEEE 802.3 Ethernet
•Compact size for desktop or wall mounting
•Plug and play, no configuration required
•1 uplink port for easy expanding to another hub or LAN switch
•1 BNC port for trunk connection
•Per port Link and Partition LEDs for easy diagnostics
The AcerHub 528 Front Panel
The following diagram illustrates the front panel of AcerHub 528. To distinguish model 528B or 528T, please see the label on the bottom side of the hub.
1. PWR, the power (Green) Indicator
When the power LED is lit it indicates that the hub’s power is on.
2. Collision (ORANGE) Indicator
This LED indicator blinks when the hub detects a collision on the network.
3. Link (GREEN) Indicators
These LEDs indicate the state of the data link of each port. The LED will be
“ON” when the connection of that port is successful, and the LED will be blinking when data is being received at that port.
4. Partition (ORANGE) Indicators
The LEDs will be “ON” when ports on the hub are been partitioned. A port is partitioned if it experiences consecutive collisions. The partitioned port is automatically isolated by the hub. The port will be automatically recovered when the faulty condition disappeared. When the port recovers, the partition LED returns to normal status (“OFF”).
The Rear Panel of AcerHub 528
The hub is equipped with 8
2. Cascade Enabling
Slide this switch to the right (marked as “Cascade”) to enable port No. 9 to cascade with another hub or LAN switch.
3. BNC Port
This port is available on model
4. AC Adapter Port
Plug the AC adapter jack into this port.
After you have decided on a suitable location for mounting the hub, mark the location for inserting two screws 165mm apart. At the marked locations, drill two holes and insert a nylon screw anchor in each hole. Insert a tapping screw in each hole. Align
Making Network Connections
refer to following figure for an illustration of such a connection.
4.Take caution that you need to attach a 50ohm terminator on both ends of the BNC cable.
Note: If port1 (BNC PORT) does not connect to the coaxial cable after power is applied to the hub, port1 (BNC PORT) Partition LED will be blinking. The port1 Partition LED will be OFF after connecting the coaxial cable to port1.
The following diagram illustrates
Cascading Hubs by using
The AcerHub 528B features a cascade enabling switch to allow port No. 9 to cascade to next hub.
The following diagram illustrates
Specifications of AcerHub 528B/528T :
Product Limited Warranty
Acer Netxus Incorporated (ANI) warrants its product to be free from defects in materials and workmanship, under normal use and service, for the following lengths of time from the date of purchase from ANI or its Authorized Resellers.
Network adapter card
Switch and managed hub
* Power supply/adapter and fans in these devices provide One year warranty
All products with limited lifetime warranty have a standard
ANI SHALL NOT BE HELD LIABLE FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL OR RUNTIME DAMAGES OF ANY KIND; OR FOR LOSS OF REVENUE, LOSS OF BUSINESS, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS, EVEN IF ANI OR ITS AUTHORIZED DEALER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Series No. (S/N)
( Authorized distributors' or Resellers' Stamp )
If you purchased this product in the UNITEDSTATES, some states do not allow the limitation or exclusion of liability for incidental consequential damages, so the above limitation may not apply to you.
Acer Computer International Ltd.
Acer America Corporation
Acer Latin America Inc.
Acer Japan Corporation
Acer UK Limited
Acer Computer France S.A.R.L.
Acer Computer GmbH
End users' Information
Acer Computer Iberica, S.A.
Acer Italy/Texas Instruments
Acer Computer B.V.
Acer Netxus Incorporated
A communications company of Acer
7F, 82, Sec. 1 Hsin Tai Wu Road
Hsichih, Taipei Hsien, 221, Taiwan