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Getting Help

SEH100TX User’s Guide

1-3

 

1.3

GETTING HELP

 

If you need additional support related to this device, or if you have any 
questions, comments, or suggestions concerning this manual, contact 
Cabletron Systems Technical Support:

Before calling Cabletron Systems Technical Support, have the following 
information ready:

A description of the failure

A description of any action(s) already taken to resolve the problem 
(e.g., changing mode switches, rebooting the unit, etc.)

A description of your network environment (layout, cable type, etc.)

Network load and frame size at the time of trouble (if known)

The serial and revision numbers of all Cabletron Systems products in 
the network

The device history (i.e., have you returned the device before, is this a 
recurring problem, etc.)

Any previous Return Material Authorization (RMA) numbers

Phone

(603) 332-9400
Monday – Friday; 8 

 

A

 

.

 

M

 

. – 8 

 

P

 

.

 

M

 

. Eastern Time

CompuServe

GO CTRON from any ! prompt

Internet mail

[email protected]

FTP

ctron.com (134.141.197.25)

Login 

 

anonymous

 

Password 

 

your email address

 

BBS

(603) 335-3358 

Modem setting

8N1: 8 data bits, 1 stop bit, No parity

For additional information about Cabletron Systems products, visit our 
World Wide Web site: http://www.cabletron.com/

Summary of Contents for SEH100TX-22

Page 1: ...SEH100TX 22 100BASE T STACKABLE HUB USER S GUIDE...

Page 2: ......

Page 3: ...names mentioned in this manual may be trademarks or registered trademarks of their respective companies FCC NOTICE This device complies with Part 15 of the FCC rules Operation is subject to the follow...

Page 4: ...ng radio interference in commercial and or industrial areas Consequently when used in a residential area or in an adjacent area thereto radio interference may be caused to radios and TV receivers etc...

Page 5: ...IN NO EVENT SHALL CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF BUSINESS PROFITS BUSINESS INTERRUPTION LOSS OF BUSINESS INFORMATION S...

Page 6: ...22 EN 50082 1 EN 60950 Equipment Type Environment Networking Equipment for use in a Commercial or Light Industrial Environment We the undersigned hereby declare under our sole responsibility that the...

Page 7: ...IMs 2 4 CHAPTER 3 INSTALLATION REQUIREMENTS AND SPECIFICATIONS 3 1 Cable Specifications 3 1 3 1 1 HubSTACK Interconnect Cable Requirements 3 1 3 1 2 UTP Cable Specifications 3 2 3 1 3 Multimode Fiber...

Page 8: ...r 4 8 4 5 Installing an EPIM 4 8 CHAPTER 5 CONNECTING TO THE NETWORK 5 1 Connecting the SEH100TX 22 to the Network 5 1 5 1 1 Connecting to Network Ports 5 1 5 1 2 Connecting to an EPIM 100TX 5 2 5 1 3...

Page 9: ...of related manuals Chapter 2 SEH Features and Options briefly describes SEH features and provides information about available options Chapter 3 Installation Requirements and Specifications provides in...

Page 10: ...der s attention to any item of information that may be of special importance TIP Tip symbol Conveys helpful hints concerning procedures or actions CAUTION Caution symbol Contains information essential...

Page 11: ...ironment layout cable type etc Network load and frame size at the time of trouble if known The serial and revision numbers of all Cabletron Systems products in the network The device history i e have...

Page 12: ...HI100TX 22 100BASE T Intelligent Stackable Hub User s Guide to supplement the procedures and other technical data provided in this manual The procedures contained in the SEHI100TX 22 100BASE T Intelli...

Page 13: ...ed throughout this manual when referring to the SEH100TX 22 and the SEHI100TX 22 respectively PWR MGMT CLN HubSTACK 100BASE TX HUB WITH LANVIEW SEH100TX 22 22X 21X 20X 19X 18X 17X 11X 10X 9X 8X 7X 6X...

Page 14: ...y two Data Terminal Equipment DTE devices within a single collision domain network The SEH automatically partitions problem segments and reconnects repaired segments to the network This feature minimi...

Page 15: ...s with one SEHI The SEHI is placed at the bottom of the stack It manages all SEH hubs in the stack and provides full packet and error statistics for the entire stack individual devices or individual p...

Page 16: ...through different types of media Cabletron Systems offers three optional EPIMs for the SEH100TX 22 and SEHI100TX 22 as shown in Table 2 1 For more details about the EPIMs refer to Appendix A Table 2...

Page 17: ...y of the connections and the length of cables are critical factors in determining the reliability of the network The following sections provide the specifications for each media type 3 1 1 HubSTACK In...

Page 18: ...s 328 feet Category 5 cables are marked on the cable jacket as Cat 5 Category 5 Level 5 Level V or an equivalent Impedance UTP cables typically have an impedance of between 85 and 110 ohms Jitter Inte...

Page 19: ...PIM 100FX or EPIM 100FMB module the network must meet the following requirements Cable Loss Test the fiber optic cable with a fiber optic attenuation test set adjusted for an 850 nm wavelength This te...

Page 20: ...e up to 100 meters long for a maximum network length of 200 meters If segment A is UTP and segment B is fiber optic the maximum length of the network is 263 meters with a maximum UTP segment length of...

Page 21: ...shows the RJ45 pinouts Figure 3 2 RJ45 Network Port Pinouts CAUTION The maximum length of an individual UTP segment may be no more than 100 meters for proper operation Table 3 1 Maximum Class I Netwo...

Page 22: ...ed in this section Operating Temperature 5 C to 40 C 41 F to 104 F Storage Temperature 30 C to 73 C 22 F to 164 F Operating Humidity 15 to 95 non condensing 3 5 AGENCY APPROVALS The safety emission an...

Page 23: ...quirements of EN 50082 1 including IEC 801 2 ESD IEC 801 3 Radiated Susceptibility and IEC 801 4 EFT B 3 6 PHYSICAL SPECIFICATIONS This section details the physical specifications for the SEH Dimensio...

Page 24: ...Chapter 3 Installation Requirements and Specifications 3 8 SEH100TX User s Guide...

Page 25: ...ing the SEH Section 4 4 Installing Optional EPIMs Section 4 5 4 1 UNPACKING THE SEH Unpack the SEH as follows 1 Remove the shipping material covering the SEH in the shipping box 2 Carefully remove the...

Page 26: ...stack Maintain a temperature of between 5 C 41 F and 40 C 104 F at the installation site with fluctuations of less than 10 C per hour The SEH must be located within seven feet of its power source and...

Page 27: ...SEH as follows 1 Locate the strain relief bracket and four 8 32 x 3 8 inch pan head screws from the rackmount kit 2 Attach the strain relief bracket to the bottom of the SEH Figure 4 2 Figure 4 2 Atta...

Page 28: ...m underneath and align the mounting brackets of the SEH chassis with the screw holes in the equipment rack as shown in Figure 4 4 Fasten the SEH to the equipment rack securely Do not remove the cover...

Page 29: ...e SEH stack proceed to Section 4 4 2 CAUTION Failure to follow this procedure may result in damage to the equipment CAUTION If you are using an intelligent hub SEHI to manage the stack you must locate...

Page 30: ...til the CPU LED is a steady blinking green 3 Power up the SEH above the SEHI in the stack by plugging the power cord into the back panel of the SEH and plugging the other end into a grounded receptacl...

Page 31: ...ected CAUTION Do not leave an interconnect cable connected at only one end during network operation Corrupted data may result 100BASE TX HubSTACK Interconnect Cable REAR VIEW SEHI Managing 4 SEH Non I...

Page 32: ...ect cable to the OUT port on the rear panel of the first SEH in the stack 5 Continue connecting ports in this manner until all hubs are connected 4 5 INSTALLING AN EPIM This section contains procedure...

Page 33: ...s 2 Slide the new EPIM into place making sure that the connectors on the rear of the EPIM align correctly and firmly with the connector inside the SEH Refer to Figure 4 6 3 Tighten the mounting screw...

Page 34: ...Chapter 4 Installation 4 10 SEH100TX User s Guide...

Page 35: ...ion 5 1 3 Prior to connecting the network cabling check the connectors for the proper pinouts as shown in Chapter 3 5 1 1 Connecting to Network Ports Attach UTP segments to the RJ45 network ports on t...

Page 36: ...k the cable for continuity d Check that the twisted pair connection meets the cable specifications outlined in Section 3 1 2 If a link is not established contact Cabletron Systems Technical Support Re...

Page 37: ...twisted pair segment as follows 1 Connect the twisted pair segment to the module by plugging the RJ45 connector on the twisted pair segment into the RJ45 port on the module See Figure 5 2 2 Plug the...

Page 38: ...a fiber segment to the EPIM 100FX or EPIM 100FMB 1 Remove the protective plastic covers from the fiber optic ports on the module port and from the ends of the connectors 2 Insert one end of the SC con...

Page 39: ...optic connection meets the dB loss specifications outlined in Section 3 1 3 If a link is not established contact Cabletron Systems Technical Support Refer to Section 1 3 for instructions on getting he...

Page 40: ...Chapter 5 Connecting to the Network 5 6 SEH100TX User s Guide...

Page 41: ...plicable for the port is on If the LED is off perform each of the following steps until it is on a Check that the 100BASE T device at the other end of the twisted pair segment is powered up b Verify t...

Page 42: ...hed segment The affected port remains segmented until a good packet is transmitted received without collisions If the LNK LED is still off contact Cabletron Systems Technical Support 6 2 USING LANVIEW...

Page 43: ...the SEH NOTE Flashing indicates an irregular LED pulse Blinking indicates a steady LED pulse LED NAME PWR Power MGMT Management CLN Collision RCV Receive LNK Link LED COLOR Off Green Solid Green Flas...

Page 44: ...ashes it indicates that a collision has occurred on one of the ports RCV When a yellow RCV LED flashes it indicates that the SEH is receiving data packets from the associated port segment Each SEH por...

Page 45: ...100TX is an RJ45 connector supporting Unshielded Twisted Pair UTP cabling The slide switch on the EPIM 100TX determines the crossover status of the cable pairs If the switch is on the X side the pairs...

Page 46: ...ptical overshoot A peak power meter must be used to correctly compare the values given above to those measured on any particular port If power levels are being measured with an average power meter add...

Page 47: ...typically to a switch port The maximum 100BASE T collision domain using UTP cable to the desktop and fiber cable in the next domain or switch port is only 263 meters 100 meters of UTP and 163 meters o...

Page 48: ...ter optical overshoot A peak power meter must be used to correctly compare the values given above to those measured on any particular port If power levels are being measured with an average power mete...

Page 49: ...M specifications EPIM 100FMB A 3 EPIM 100FX A 2 EPIM 100TX A 1 EPIM 100FMB connection of 5 4 EPIM 100FX connection of 5 4 EPIM 100TX connection of 5 2 H Help related manuals 1 4 HubSTACK cable require...

Page 50: ...3 6 SEH features 2 2 SEH100TX 22 connection of 5 1 Size dimensions 3 7 Specifications environmental requirements 3 6 power supply requirements 3 6 SEH network ports 3 5 T Testing 5 5 Troubleshooting 6...

Page 51: ...die Anwendung des Geraetes geeignet und der zum Benuetzen im Lande der Anwendung anerkannt ist SPANISH El cable principal de la red el ctrica utilizado con este equipo debe tener 2 conductores y 1 to...

Page 52: ......

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