Parameter Typical Minimum Maximum | Cabletron Systems SEHI-34

INSTALLATION REQUIREMENTS/SPECIFICATIONS

Maximum Sensitivity (-36.0)

Receive

Typical Sensitivity (-31.0)

Sensitivity

Minimum Sensitivity (-30.0)

Minimum Receive Input (-9.72)

Maximum

Typical Receive Input (-7.5)

Receive

Input Power

Maximum Receive Input (-6.99)

Transmitter Power*

Maximum Transmit Power (-12.0)

(At 25°C into

Typical Transmit Power (-15.5)

8.3/125∝m fiber)

Minimum Transmit Power (-21.0)

dBm -40 -35

-30 -25

-20 -15 -10

-5

0

Less Power

More Power

* Transmit Power

Typical Power

Minimum Power

Maximum Power

Coefficient

-0.15dBm/°C

-0.12 dBm/°C

-0.18 dBm/°C

(See Note Below)

Parameter

Typical

Minimum

Maximum

Transmitter Peak

Wave Length

1300 nm

1270 nm

1330 nm

Spectral Width

60 nm

-

100 nm

Rise Time/

3.0 nsec

2.7 nsec

5.0 nsec

Fall Time

2.5 nsec

2.2 nsec

5.0 nsec

Duty Cycle

50.1%

49.6%

50.7%

Bit Error Rate:

Better than 10-10

Note: The transmitter power levels given above are Peak Power Levels after optical overshoot. You must use a Peak Power Meter to correctly compare the values given above to those measured on any particular port. If you are measuring power levels with an Average Power Meter, add 3 dBm to the average power measurement to correctly compare the average power values measured to the values listed above (i.e. -33.5 dBm average + 3 dB = -30.5 dBm peak).

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Cabletron Systems SEHI-34, SEHI-22, SEHI-32, SEHI-24 manual Parameter Typical Minimum Maximum

Contents

10BASE-T Intelligent Stackable HUB USER’S Guide Printed On Recycled Paper DOC Notice FCC Notice Cabletron Software Program License Cabletron SYSTEMS, INC Program License Agreement United States Government Restricted Rights Exclusion of Warranty Disclaimer of Liability Table of Contents Local Management InstallationConnecting to the Network Troubleshooting Contents Appendix B Twisted Pair Wiring Tables A-1 Chapter Introduction Using this Manual Sehi Overview Introduction Getting Help Flash EEPROMs Sehi FeaturesRepeater Functionality Polarity Detection and Correction Stackable Capabilities Reset ButtonLanview LEDs Local Management Epim Introduction Optional Features Daughter Board Upgrade Kit Rack Mount or Wall Mount HardwareRelated Manuals HubSTACK Interconnect Cable Requirements Cable Specifications Jitter LengthInsertion Loss Impedance Noise DelayTemperature Crosstalk Cable Type Attenuation Maximum Cable Length Fiber Optic Budget and Propagation Delay Installation REQUIREMENTS/SPECIFICATIONS Terminators ConnectorsThin-Net Network Requirements for the EPIM-C Module Cable Type Network Port Specifications AUI Cable Requirements for the EPIM-A and EPIM-X ModulesAUI Cable SEHI-32 and SEHI-34 Network Port Speciﬁcations SEHI-22 and SEHI-24 Network Port Speciﬁcations Pin Champ Connector EPIM-T Installation REQUIREMENTS/SPECIFICATIONS Epim Specifications Parameter Typical Worst Worst Case Typical Value Budget EPIM-F1 and EPIM-F2 EPIM-F3 EPIM-F3 Parameter Typical Minimum Maximum EPIM-C Connector Type EPIM-A and EPIM-X EPIM-A and EPIM-X AUI Port Transceiver Requirements COM Preamble Delay Times Start of PacketsDelay Times JAM General JAM Output Fault ProtectionPower Supply Requirements Output Min. Load Max. Load Max Power Physical Safety Unpacking the Sehi Installing the Sehi Stacking the Sehi Stacking the Sehi Disconnect SEH and Sehi Interconnect Cables At the OUT Port Attaching the Strain Relief Bracket Rack Mounting the Sehi Installing the Sehi in the Rack Wall Mounting the Sehi Shelf or Table-top Installation Free-Standing Installation Installation Connecting the Sehi to the Power Source Connecting to Network Ports, SEHI-22 and SEHI-24 Connecting the Sehi to the Network EPIM-2 Connecting to Network Ports, SEHI-32 and SEHI-34 EPIM-T Cross-over Switch Connecting a UTP Segment to an EPIM-T Connecting to the Network Connecting to the Network Connecting to the Network Connecting a Thin-Net Segment to an EPIM-C EPIM-C EPIM-A Connecting an AUI Cable to an EPIM-A Connecting an AUI Cable to an EPIM-X On Position Toward Back Epim OFF Position Toward Front Finishing the Installation Installation CHECK-OUT Chapter Troubleshooting Using Lanview CPU PWR LNK Troubleshooting CLNUsing the Reset Button RCV Chapter Local Management Local Management Management Terminal Requirements Management Terminal Connection Console Cable Conﬁguration Setup Management Terminal Setup ParametersMenu Function Selection Display Setup General Setup Sehi Local Management Local Management Accessing Local Management Feature Selection Screen Community Name Table Screen Local Management Using the Local Management Screens Community Name Access Editing the Community Name Field IP Address Conﬁguration Screen SubNet Mask Default GatewayPort Enable Override Setting the IP Address Setting the Subnet Mask Using the Port Enable Override Setting the Default Gateway Trap Table Screen Exiting the Configuration Screen Trap IP Address Configuring the Trap TableSnmp Community Name Traps Snmp Tools Screen Exiting the Trap Table Screen Get Next OID PrependGet Set Cycles WalkRecall-OID Step Getting the Next OID Getting Individual OIDs Viewing Multiple OIDs Setting an OID Walking Through OIDs Stepping Through OIDsCycling Through OIDs Device Statistics Screen Exiting the Snmp Tools Screen Port Admin. Status Errors ReceivedCRC Errors Alignment Errors Port Seg. Status Enable PortDisable Port Update-Freq Selecting the Appropriate Module/Port Using the Enable Port Command Exiting the Device Statistics Screen Using the Disable Port Command Twisted Pair Wiring Tables Appendix a Twisted Pair Wiring Tables A-2 A-3 A-4 From Punch Down To RJ-45 Into Block Wallplate Ofﬁce 10BASE-TDrop Device A-6 A-7 Champ Down Block If Required Ethernet Device SEHI-32/34 Punch Wall Plate Figure A-1. Punch Down Block A-9 French Power Supply CordGerman Spanish