Cabletron Systems SEHI-22FL manual EPIM-F3, Parameter Typical Minimum Maximum

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EPIM Specifications

A.1.3 EPIM-F3

The EPIM-F3 (Figure A-3) supports Single Mode Fiber Optic cabling. It has an internal Cabletron Systems FOT-F Fiber Optic Transceiver and is equipped with ST Connectors. EPIM-F3 specifications are listed below.

1490_32

Figure A-3 EPIM-F3

Transmitter Power decreases as temperatures rise and increases as temperatures fall. Use the Output Power Coefficient to calculate increased or decreased power output for the operating environment. For example, the typical power output at 25°C is -16.4 dBm. For a 4°C temperature increase, multiply the typical coefficient (-0.15 dBm) by four and add the result to typical output power (4 x -0.15 dBm + -16.4 = -17.0).

Parameter

Typical

Minimum

Maximum

 

 

 

 

 

 

 

 

Transmitter Peak

 

 

 

Wave Length

1300 nm

1270 nm

1330 nm

 

 

 

 

Spectral Width

60 nm

-

100 nm

 

 

 

 

Rise Time

3.0 ns

2.7 ns

5.0 ns

 

 

 

 

Fall Time

2.5 ns

2.2 ns

5.0 ns

 

 

 

 

Duty Cycle

50.1%

49.6%

50.7%

 

 

 

 

Bit Error Rate

Better than 10-10

 

 

 

 

 

The transmitter power levels given above are Peak Power Levels after optical overshoot. Use a Peak Power Meter to compare the values given above to those measured on any particular port. If you are using an Average Power Meter, add 3 dBm to the measurement to compare the average power values to the values listed above

(i.e., -33.5 dBm average + 3 dBm = -30.5 dBm peak).

SEHI User’s Guide

A-3

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Contents SEHI-22FL Intelligent Stackable HUB USER’S Guide Sehi User’s Guide FCC Notice Cabletron SYSTEMS, INC. Program License Agreement United States Government Restricted Rights Contents Contents Sehi User’s Guide Vii Using this Manual Chapter IntroductionDocument Conventions Following conventions are used throughout this documentGetting Help Related ManualsChapter Sehi Features and Options SEHI-22FLSehi Features Sehi OverviewStackable Capabilities Remote Network Management CapabilitiesOptional Features EpimChapter Installation Requirements Specifications Cable SpecificationsHubSTACK Interconnect Cable Requirements 2 10BASE-FL Fiber Optic Network Requirements3 10BASE-T UTP and STP Cable Specifications Network Port Specifications SEHI-22FL Network PortsCOM Port Requirements Transceiver RequirementsOperating Specifications Flash MemoryPower Supply Requirements Environmental Requirements Physical SpecificationsAgency Approvals Chapter Installation Unpacking the SehiPRE-INSTALLATION Test Installing the SehiTabletop or Shelf Installation Tabletop or Shelf InstallationRackmount Installation Attaching the Strain-Relief BracketRack Mounting the Sehi Stacking the Sehi Inch RackStacking the Sehi Connecting the Sehi to the Power Source Disconnect SEH and Sehi Interconnect Cables at the OUT PortInstalling an Epim ADDING/REPLACING EpimsConnecting the Sehi to the Network Chapter Connecting to the NetworkConnecting Network Ports Connecting to the Network Connecting the Sehi to the Network Connecting a UTP Segment to an EPIM-T EPIM-T Crossover SwitchConnecting a Fiber Segment to an EPIM-F1/F2/F3 Sehi User’s Guide EPIM-F1, EPIM-F2, and EPIM-F3 Connecting a Thin Coaxial Segment to an EPIM-C Connecting an AUI Cable to an EPIM-A Connect an EPIM-A to an external network segment as followsEPIM-A Connecting an AUI Cable to an EPIM-X EPIM-XFinishing the Installation Chapter Troubleshooting Installation CheckoutUsing Lanview Using Lanview Using the Reset Button Setting the Nvram Switch Chapter Local Management Local Management Keyboard Conventions Keyboard Conventions FunctionManagement Terminal Setup Console Cable Configuration Management Terminal Setup Parameters Accessing Local Management Sehi Local ManagementFeature Selection Screen Feature Selection ScreenCommunity Name Table Screen Community Name Table ScreenBASIC-READ Configuration Screen ConfigurationDisplays the IP address of the Sehi Setting the IP Address Setting the Default Gateway Trap Table Screen Trap Table ScreenTrap Table Screen Snmp Tools Screen Snmp Tools ScreenAllows the user to retrieve MIB objects using Snmp protocol Getting Individual OIDs Viewing Multiple OIDs Device Statistics Screen Device Statistics ScreenFollowing sections describe Device Statistics screen fields This command lets the user enable the selected port Port Using the Disable Port Command Appendix a Epim Information Epim SpecificationsEPIM-T EPIM-F1 and EPIM-F2 EPIM-F3 Parameter Typical Minimum MaximumEPIM-C Figure A-4 EPIM-CEPIM-A and EPIM-X AUI Port Figure A-5 The EPIM-A and EPIM-XImage File Download Using OIDs Appendix BSetting UP a Unix Workstation AS a Tftp Server Standard Tftp Download Standard Tftp DownloadTable B-1 Standard Tftp Download Procedure Index NumericsIndex-2 Sehi User’s Guide Power Supply Cord

SEHI-22FL specifications

Cabletron Systems SEHI-22FL is a robust and reliable networking device designed for use in high-performance telecommunications and data communication environments. Known for its versatility, the SEHI-22FL serves as a key component in the infrastructure of businesses that require fast, efficient, and secure data transmission.

One of the main features of the SEHI-22FL is its multi-layer switching capabilities, which enable it to operate at both Layer 2 and Layer 3 of the OSI model. This means that it can handle data switching and routing, thus providing flexibility in network design. It incorporates advanced switching technologies that facilitate high-speed data transfers, making it an ideal choice for networks that demand low latency and high throughput.

The SEHI-22FL is equipped with multiple Ethernet ports that support different speeds, including 10/100Mbps and Gigabit Ethernet options, allowing users to connect various devices seamlessly. The device supports both copper and fiber optics connections, thus ensuring adaptability to various networking scenarios. This flexibility helps network administrators to optimize network performance according to the specific requirements of their organization.

For security, the SEHI-22FL comes with built-in features that include VLAN support, which allows for network segmentation. This functionality adds an extra layer of security by isolating different parts of the network, thereby minimizing the risk of unauthorized access. Additionally, it supports features such as port security and MAC address filtering, which further enhance the security protocols of the network.

The management of the SEHI-22FL is simplified through an intuitive user interface that provides comprehensive monitoring and configuration options. Network administrators can easily access important metrics and performance statistics, thus enabling quick resolution of any issues that may arise. This is complemented by support for SNMP (Simple Network Management Protocol), allowing for remote management and monitoring capabilities.

The device is designed with reliability in mind, exhibiting features such as redundant power supplies and cooling systems to ensure uninterrupted operation even in critical environments. This makes the SEHI-22FL a trustworthy choice for businesses that cannot afford downtime.

In conclusion, Cabletron Systems SEHI-22FL stands out as a versatile and powerful networking device equipped with advanced features, robust security protocols, and reliable performance. Its ability to adapt to different networking environments makes it a valuable asset for organizations looking to enhance their telecommunications infrastructure.
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