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Table of Contents

Introduction........................................................................ 1
About 10BaseT (twisted pair) Topology........................... 1
24 port Ethernet Hub Options ......................................... 2
Redundancy Feature......................................................... 2 
Using Shielded Twisted Pair Wire..................................... 3 
Hub Views........................................................................... 3
Hub Reset Switch............................................................... 3
LED's................................................................................... 4
Redundancy Switch........................................................... 4
Rules for Configuring Your Network................................ 4

Table 1.....................................................................13
Figure 7...................................................................14

Twisted pair wiring............................................................. 7

Figure 2.................................................................... 9

Optional Slide In Cards..................................................... 9

Figures 4-6.............................................................. 11

Troubleshooting your Installation................................... 12
Fuse Information............................................................... 15
Approved European Power Cord Set Information... 15&16
FCC Statement.................................................................. 17
Canadian Statement......................................................... 17
Technical Support............................................................ 17
Specifications................................................................... 18
Rack Mounting Tabs......................................................... 18

FCC Regulations

NOTE:  This equipment has been tested and found to com-
ply with the limits for a Class A digital device, pursuant to
Part 15 of the FCC Rules.  These limits are designed to pro-
vide reasonable protection against harmful interference
when the equipment is operated in a commercial environ-
ment.  This equipment generates, uses, and can radiate
radio frequency energy and if not used in accordance with
the instruction manual, may cause harmful interference to
radio communications.  Operation of this equipment in a res-
idential area is likely to cause harmful interference in which
case the user will be required to correct the interference at
his own cost.

Canadian Regulations

NOTE:  This digital apparatus does not exceed the Class A
limits for radio noise for digital apparatus set out on the
Radio Interference Regulations of the Canadian Department
of Communications.

Technical Support

For more information about this product or other TRANSI-
TION Networks products, call your local TRANSITION
Networks distributor, or contact us by telephone at (612)
941-7600 or fax (612) 941-2322.

Trademarks

Ethernet is a registered trademark of Xerox Corporation.

Summary of Contents for E-TBT-HB-1002

Page 1: ...250 VAC 47 63 Hz 40W Max Environment 0 70 C 5 90 humidity non con densing 0 10 000 ft altitude Dimensions Free standing rack mount adapters included 19 W x 6 25 D x 3 4 H Desk top 17 W x 6 25 D x 3 4 H Accessories Rack mounting tabs included for stand ard 19 wall racks Rubber feet for free standing Safety Approvals UL Listed C UL Approved Canadian Safety ...

Page 2: ...easonable protection against harmful interference when the equipment is operated in a commercial environ ment This equipment generates uses and can radiate radio frequency energy and if not used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a res idential area is likely to cause harmful interference in which case the...

Page 3: ... or daisy chain topology where 10BaseT twist ed pair networks are designed in a star type topology In a star topology the hub is located in the center of the con figuration with the individual nodes connected to the hub spread out like spokes on a wheel In a linear or bus topology if you disconnect a device or accidentally open a Table 3 Approved European Power Cord Set Information Alternate Marki...

Page 4: ...e front panel indicates trouble The Redundancy feature requires the switch enabled on side of the hub and both optional Slide in Card ports be utilized Either twisted pair or fiber optic The following are network topology constraints that apply to 10BaseT as well as mixed media networks containing 10BaseT segments 1 Repeater sets are required for all segment interconnec tion 2 MAUs that are part o...

Page 5: ... 21 22 23 24 Unit I D 10BaseT Hub 1002 1 3 5 7 9 11 1315 17 19 21 23 2 4 6 8 12 1416 18 20 22 24 10 1 2 Link Rear Slot Enabled Fault Power 1 2 3 5 6 7 8 4 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Unit I D 10BaseT Hub 1002 1 3 5 7 9 11 1315 17 19 21 23 2 4 6 8 12 1416 18 20 22 24 10 1 2 Link Rear Slot Enabled Fault Power 1 2 3 5 6 7 8 4 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Unit I D ...

Page 6: ...on the cable characteristics Hub LED s The 24 port Ethernet hub provides Power Link Fault and Rear Slot Enabled LED s for monitoring convenience Power is indicated after the unit is plugged into any AC out let 100 240 VAC 50 60 Hz and with the rear power switch turned on Link indicates the hub is receiving link pulses from a 10BaseT compliant device Fault LED indicates the redundancy feature has f...

Page 7: ... hub s power cord connection Suitable rack space to mount the hub for proper ventilation Troubleshooting Your Installation The first step after the wiring has been installed is to con nect two devices such as the file server and a workstation to the hub to see if they will communicate with each other Use your operating system software to locate each device When you have verified that they communic...

Page 8: ...e building s If identifiable contact the manufacturer or distributor installer and have them send you the wire specifications or have them determine if the cable meets the 10BaseT requirements listed on page 7 Make sure the cable run is in a star configuration and all of the cables are run to a central location which is easily accessible In your central location look at your punch down blocks and ...

Page 9: ...ommended The cable must have a minimum of 2 pairs of twisted 22 26 AWG wire Flat or Straight wire is not recommended Gauge 22 to 26 AWG Attenuation Less than 11 5 dB between 5 and 10 MHz Differential Characteristic 85 to 110 Ω 10 MHz Impedance Maximum Distance 100 Meters 330 Feet Cascading Hubs Ethernet hubs may be cascaded together to support larger networks When cascading the 24 port hub to anot...

Page 10: ...such as blue white white blue or orange white white orange etc Table 1A RJ 45 Male RJ 45 Male 1 1 2 2 3 3 6 6 Installing Optional Slide In Cards Optional Slide In Cards provide added capability to your net work These are available in Coax E CX SIC Fiber optic E FRL SIC and Twisted pair E TBT SIC cabling See cabling specifications on page 7 8 With the optional Slide In Cards you can cascade to othe...

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