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LANMaster T8

18

1

8-Port Ethernet Hub w/SIC Slot

1. INTRODUCTION

This guide is intended for the system or network administrator
responsible for installing and monitoring a TRANSITION Networks
LANMaster T8 8-Port Ethernet Hub w/SIC Slot. A working
knowledge of local area network (LAN) operations, including
familiarity with communications protocols used on interconnected
LANs, is assumed.

The LANMaster T8 Hub w/SIC Slot

The LANMaster T8 8-Port Ethernet Hub w/SIC Slot (E-TBT-HB-
0802), is a stand-alone, fully functional Ethernet repeater. 

LANMaster T8 8-Port Ethernet Hub w/SIC Slot Features

Media Dependent Interface (MDI) switch eliminates need
for RJ-45 crossover cable connection between LANMaster
T8 devices.

Comes with internal power supply.

Complies with Ethernet 802.3.

Slide-In Card (SIC) slots for optional installation of
additional media connections.

1

2

3

4

5

6

7

8

MDI/MDIX

T R A N S I T I O N

n e t w o r k s

Minneapolis, MN 55344 USA

LAN Master   T8

8 Port Ethernet Hub w/SIC Slot

10BaseT Cable Specifications

The physical characteristics of the 10BaseT cable must meet or exceed
IEEE 802.3 10BaseT specifications. 
Either shielded or unshielded twisted pair can be used. Level 3 wire or
better is recommended.  

• Gauge. . . . . . . . . . . . . . . . . .  26 to 22 AWG
• Attenuation  . . . . . . . . . . . . .  Less than 11.5 dB @ 5-10 MHz
• Differential Characteristic  . . 85 -110 

Impedance 

@ 10 MHz 

• Maximum Distance  . . . . . . . 100 Meters (330 Feet)

Segment Distance

Media

Maximum

Maximum

Minimum

Maximum

Segment

Number

Segment

Medium Medium

Type

MAU/ 

Length

Propagation

End to End

Segment

(meters)

Velocity

Propagation
Delay/Segment

10Base5

100

500

0.77 c

2570

10Base2

30

185

0.65 c

950 

AUI 

††

DTE/MAU

50

0.65 c

257

10BaseT

2

100 

†††

0.59 c

1000

FOIRL

2

1000 

††††

0.66 c

5000

FL

2

2000

0.66 c

5000

c = 3 x 10

8

meters/second

††

AUI connection is not a segment

†††

Maximum segment length depends on the cable characteristics

††††

A network of four repeaters and five segments, can have up to 3 
coax segments and 2 required link segments.  The maximum 
length of a FOIRL link segment must not exceed 500 meters.  If 
your network has three repeaters and four segments, the 
maximum length of a FOIRL link segment must not exceed 1000 
meters.  

Summary of Contents for E-TBT-HB-0802

Page 1: ...ce in installing using or maintaining the TRANSITION Networks LANMaster T8 10BaseT Ethernet Hub contact TRANSITION Networks Technical Support at 800 260 1312 or contact your local distributor LANMaster T8 8 Port Ethernet Hub w SIC Slot ...

Page 2: ...status and provide the appropriate number to the End User The three types of return numbers are listed below A Credit Return Authorization CRA number can only be requested from your distributor This CRA number will only be issued to distributors for item s within 90 days from the original ship date Under no circumstances will a CRA number be issued directly to the End User The return item s must b...

Page 3: ...SUCH PRODUCTS MADE BY TN ITS EMPLOYEES AGENTS OR REPRESENTATIVES B Limitations and Exclusions If customer believes any goods sold hereunder are defective pursuant to the warranty and within the warranty period set forth above the customer must notify TN within such period TN will promptly issue a return form for such goods Upon receipt of the form customer is to promptly return the allegedly defec...

Page 4: ... Ethernet Hub w SIC Slot 10BaseT Cable Specifications The physical characteristics of the 10BaseT cable must meet or exceed IEEE 802 3 10BaseT specifications Either shielded or unshielded twisted pair can be used Level 3 wire or better is recommended Gauge 26 to 22 AWG Attenuation Less than 11 5 dB 5 10 MHz Differential Characteristic 85 110 Ω Impedance 10 MHz Maximum Distance 100 Meters 330 Feet ...

Page 5: ...rs LANMaster T8 Specifications Dimensions 9 25 X 7 75 X 1 75 235mm x 197mm x 45mm Environment Temperature 0 50 C Humidity 10 90 non condensing Altitude 0 10 000 feet Cable Specifications 10Base2 Cable Specifications The physical characteristics of the 10Base2 cable must meet or exceed IEEE 802 3 10Base2 specifications 50 W RG 58 Ethernet approved cable AUI Cable Specifications The 15 pin AUI cable...

Page 6: ...ections to the 10BaseT network MDI MDI X Switch The MDI MDI X switch allows the RJ 45 connection at Port 8 to be changed from straight through to crossover 5 MAINTENANCE WARNING DO NOT UNDER ANY CIRCUMSTANCES open and attempt to repair the LANMaster T8 8 Port Ethernet Hub w SIC Slot or power supply adapter unit Failure to observe this warning could result in personal injury or death from electrica...

Page 7: ...net Hub w SIC Slot Adequate ventilation Standard environmental conditions Isolation from electrical noise including radio transmitters and broadband amplifiers motors high power electrical lines or fluorescent light fixtures Additionally The twisted pair cables should not run in the same conduit with power line cables Phone lines should be separated from data cables Flat or silver satin wires shou...

Page 8: ...numbers to all other terminals SIC Connection 3 4 5 4 4 5 1 2 2 3 3 Powering the LANMaster T8 To power ON the LANMaster T8 1 At LANMaster T8 back locate the power receptacle and associated fuse NOTE Fuse must be installed at correct setting for power source voltage before connecting to AC outlet 2 Verify that fuse is installed at correct setting for power source voltage NOTE The installed fuse rat...

Page 9: ...at both ends In a coax thinnet installation the first and last device in a daisy chain must be terminated with a 50 ohm terminator Additionally the 10Base2 segment must be grounded to earth ground Fiber Optic Connector 10BaseFL Connection The fiber optic card E FRL SIC provides one set of transmit TX and receive RX connectors to fiber optic cable The redundant fiber optic card E FL RED SIC provide...

Page 10: ...ollowing optional SICs may be included Item Part Number Thinnet Coaxial E CX SIC Fiber Optic E FRL SIC Twisted Pair E TBT SIC Female AUI E AUI DT SIC Male AUI E AUI DC SIC Bridge E BR SIC Redundant Fiber Optic E FL RED SIC Female AUI Connector 10Base5 Connection The female AUI card E AUI DT SIC provides a female AUI connector for connection through an AUI drop cable to the 10Base5 port on a transc...

Page 11: ...nector 10Base5 Male AUI Connector PC BNC Connector 10Base2 Fiber Optic Connector Fiber Optic Twisted Pair Connector 10BaseT Connection The twisted pair card E TBT SIC provides an RJ 45 connector to 10BaseT To connect 10BaseT Cable to Pocket Hub SIC RJ 45 connectors 1 Locate or build 10BaseT cables with the following characteristics 802 3 compliant See page 18 correct straight through or crossover ...

Page 12: ...In Card connector meets the the LANMaster T8 backplane 3 Firmly push the card into the slot until the Slide In Card faceplate is flat against the LANMaster T8 frame 4 Rotate the Slide In Card thumbscrews into the LANMaster T8 threaded holes 10 9 LANMaster T8 8 Port Ethernet Hub w SIC Slot Connecting 10BaseT Cable at LANMaster T8 Front To connect 10BaseT Cable to RJ 45 connectors at the LANMaster T...

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