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Stackable Personal Hubs

Installation and User Guide (04/01)

www GarrettCom com

5.0 TROUBLESHOOTING

All Magnum Ethernet products are designed to provide reliability and consistently

high performance in all network environments. The installation of Magnum ST80 Stackable

Personal Hub is a straightforward procedure (see INSTALLATION, Section 2.6); the

operation is also straightforward and is discussed in Section 4.

Should problems develop during installation or operation, this section is intended

to help locate, identify and correct these types of problems. Please follow the suggestions

listed below prior to contacting your supplier. However, if you are unsure of the procedures

described in this section or if the Magnum ST80 Stackable Personal Hub is not performing as

expected, do not attempt to repair the unit; instead contact your supplier for assistance or

contact GarrettCom Customer Support.

5.1

Before Calling for Assistance

If difficulty is encountered when installing or operating the unit, refer back to the

Installation Section of the applicable chapter of this manual. Also check

to make sure

that the various components of the network are interoperable.

Check the cables and connectors to ensure that they have been properly

connected and the cables/wires have not been crimped or in some way

impaired during installation. (About 90% of network downtime can be

attributed to wiring and connector problems.)

Make sure that an AC power cord is properly attached to each Magnum ST80

Stackable Personal Hub unit. Be certain that each AC power cord is plugged into a

functioning electrical outlet. Use the PWR LEDs to verify each unit is receiving

power.

If the problem is isolated to a network device other than the Magnum ST80

Stackable Personal Hub product, it is recommended that the problem device is

replaced with a known good device. Verify whether or not the problem is

corrected. If not, go to Step 5 below. If the problem is corrected, the Magnum

ST80 Stackable Personal Hub and its associated cables are functioning properly.

If the problem continues after completing Step 4 above, contact your supplier of

the Magnum ST80 Stackable Personal Hub unit or if unknown, contact

GarrettCom, Inc.by fax, phone or email (

[email protected]

) for assistance.

Содержание Magnum ST80 Stackable

Страница 1: ...www GarrettCom com Magnum ST80 Stackable Personal Hub Installation and User Guide 5 00 USD ...

Страница 2: ...trademarks and Personal Hub is a registered trademark of GarrettCom Inc Important The Magnum ST80 Stackable Personal Hub family contains no user serviceable parts Attempted service by unauthorized personnel shall render all warranties null and void If problems are experienced with Magnum ST80 Stackable Personal Hub products consult Section 6 Troubleshooting of this User Guide Copyright 2001 Garret...

Страница 3: ...e frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio communication It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection against such inte...

Страница 4: ...3 8 Switchable Up Link Option 16 3 9 Stacking the ST80 Personal Hubs 16 3 10 Cascading ST80 Personal Hubs with the Up Link port 18 4 0 OPERATION 19 4 1 Functional Operation Use of LED Indicators 19 4 2 Using the Up Link switch 20 4 3 Using the BNC internal termination switch Model ST80 B only 20 4 4 Using the Stack Enable switch 21 5 0 TROUBLESHOOTING 22 5 1 Before Calling for Assistance 22 5 2 Wh...

Страница 5: ...s can be connected in strings Mixed Media Fiber Hub 16 port Stackable 10 100 auto sensing Dual Speed 8 port and 16 port Stackables 10 100 auto sensing Stackable Hubs SNMP Optional 10Mb series and 100Mb series both w optional port modules Personal Switches 10 100Mb 8 port dual speed Auto negotiable with fiber option Personal Hubs 100Mb or 10 100Mb 8 port with two switched ports 1 fiber built in Per...

Страница 6: ...0 to 95 non condensing Power Supply External Input 95 125 vac at 60 Hz for d Models 200 250 vac at 50 Hz for i Models which have IEC power cable connector in the external power unit Output 12 VDC 1 A Polarity center positive shell negative Power Consumption 12 watts max Connectors ST80 Eight shielded RJ 45 ports one with up link switch one rear AUI female with slide lock two Inter Repeater Bus con...

Страница 7: ...wer supplied to ST80 COL YELLOW when a transmit collision occurs on the hub LINK TX per port GREEN when link established on port Flickers as port transmits packets POL RX per port Flickers GREEN as port receives packets Steady GREEN when reversed polarity detected Packaging Enclosure Rugged high strength steel enclosure Suitable for vertical or horizontal mounting Any unit may be used stand alone ...

Страница 8: ...Hub with eight standard RJ 45 ports one with up link switch one AUI plus 1 BNC port with internal termination switch external 115 vac 60 Hz power supply Magnum ST80 B i Same as ST80 B d except with external 230 vac 50 Hz power supply Magnum ST80 F d Stackable Personal Hub with eight standard RJ 45 ports one with up link switch one AUI plus one Fiber ST port with LINK LED external 115 vac 60 Hz pow...

Страница 9: ...e Personal Hub 1 External Power Supply either 115v 60 Hz or 230v 50 Hz 1 Velcro Tape section approximately 3 inches in length 2 L shaped stacking mounting brackets 4 Metal screws for optional use with stacking mounting brackets 1 Installation and User Guide 1 Product Registration Card Remove the Magnum Stackable Personal Hub from the shipping container Be sure to keep the shipping container should...

Страница 10: ...her connectivity if required The ST80 B and ST80 F models are also equipped with a BNC or a Fiber ST connector for convenient media connections Stackable Personal Hubs provide a simple and inexpensive solution for networking a multi system office using 10BASE T twisted pair cabling They can expand an existing single network port outlet to provide up to seven additional RJ 45 ports in the immediate...

Страница 11: ...ollision fragments and automatically partition and re connect individual ports in order to keep problems on one segment from causing downtime elsewhere on the network Model ST80 Personal Hubs include per port LINK TX and POL RX LEDs a COLlision LED and a DC PWR LED all conveniently located on the front of the unit The LINK TX LED illuminates GREEN when functional link is detected on the port It is...

Страница 12: ...c 60 Hz and one version for 230 vac 50 Hz The 115 vac version has a small transformer integral with a convenience power outlet plug The 230 vac version has a small transformer integral with an IEC type power plug for a user supplied AC power cord with a convenience power outlet plug Both types also include a lightweight DC power cord to the applicable power jack on the ST80 unit ...

Страница 13: ...ia 10BASE T wiring ν Inter operable with other Ethernet Devices Stackable Personal Hubs are completely inter operable with other Ethernet compliant network devices Each is fully compliant with IEEE 802 3 specifications for 10 Mbps CSMA CD operation and can be integrated within any standard Ethernet network and operate with standard software ν Installation Versatility Stackable Personal Hubs are ea...

Страница 14: ...ovide for direct connection to 10BASE2 and multi mode Fiber respectively Power is connected by plugging the external power supply unit into an AC power receptacle and plugging the DC power plug into the jack on the back of the ST80 In minutes up to eight additional ports are available for other networked devices Magnum ST80 Stackable Personal Hub Ports 1 2 3 4 5 6 7 8 PWR AUI IR B 1 IR B 2 S ta ck...

Страница 15: ... stacking capability allows one to build larger networks that are in compliance with the four repeater rule specified in the Ethernet standards As with a single ST80 unit a stack may be connected to a backbone through any standard Ethernet media A stack of ST80s may also be cascaded as a unit into another stack or hub Magnum ST80 Stackable Personal Hub Ports 1 2 3 4 5 6 7 8 PWR AUI IR B 1 IR B 2 S...

Страница 16: ...ience power outlet plug and a lightweight DC power cord to the applicable power jack on the hub The 230 vac version has a small transformer integral with an IEC type power plug for a user supplied AC power cord with a convenience power outlet plug It also includes a lightweight DC power cord to the applicable power jack on the ST80 unit 3 1 Table Top or Shelf Mounting Stackable Personal Hubs are e...

Страница 17: ...nit to allow clearance for the rubber feet 3 3 Combining and Mounting Stacked Units When stacking two or more ST80s the stacking mounting brackets should be used to attach each additional unit to the one below it First attach two brackets to the bottom of the upper unit using two of the metal screws To ease installation attach the brackets to the bottom of each unit through the round holes of the ...

Страница 18: ...tes when the connection is made on both ends of the wire and when the DC power is on at each end i e when the segment circuit is established and is ready to use 3 For the port 8 up link feature see 3 8 3 5 AUI Connection Using the steps below as a guide attach a new or existing 10BASE5 ThickNet drop cable directly to the AUI connector on the rear of the ST80 Personal Hub 1 Plug the male end of the...

Страница 19: ...ee the following note Important Note The maximum transmission distance is decreased by 6m 20 ft for every additional level of network transceiver device dropped or cascaded from the original backbone transceiver tap The AUI connector of the Stackable Personal Hub supports standard IEEE signals which are summarized in Table 3 5 Table 3 5 AUI Pin Assignments Pin Function Pin Function 1 Control In Ci...

Страница 20: ...to 1000m in length 1 Before connecting the fiber optic cable remove the protective dust caps from the tips of the connectors on the ST80 s rear Fiber port Save these dust caps for future use 2 Wipe clean the ends of the dual connectors with a soft cloth or lint free lens tissue dampened in alcohol Make certain the connectors are clean before connecting Note One strand of the duplex fiber optic cab...

Страница 21: ...is inoperative and full bandwidth is available locally 3 9 Stacking the ST80 Personal Hubs When increased network capacity is needed up to five ST80 Personal Hubs may be easily stacked to form a single logical repeater of up to 40 RJ 45 ports NOTE Be sure to secure the units with the stacking mounting brackets before making the following electrical connections The brackets cannot be installed whil...

Страница 22: ...h of the added unit is set to the ON position Up to five Four stacked ST80s 32 RJ 45 ports Stackable Personal Hubs may be connected in this fashion Each unit of the stack must be powered by its own external power supply unit Power on is verified by observing that the PWR LED of each unit is illuminated Should one unit of the stack be powered down the remainder of the stack will still function Five...

Страница 23: ...ned by Ethernet standards there may be a maximum of four units in any one chain between any two users Note that a stack of ST80s is a single unit for repeater functionality Magnum ST80 hubs may also be cascaded in networks with other Magnum Hubs such as Magnum Personal Hubs Magnum 1000 Workgroup Hubs and Magnum 3000 Stackable Hubs and Concentrators as well as with Ethernet hubs from other manufact...

Страница 24: ...nt at either end the LED is turned off Note When port 8 is wired for up link to another hub the LINK LED will normally be on when the up link switch is set to the X position With the up link switch off LINK is off as the up link is disabled This permits local operation of the ST80 Personal Hub with full bandwidth Polarity and Receive POL RX LED Per port LEDs intermittently illuminate GREEN to indi...

Страница 25: ...tion port 8 is set up as a user port When the switch is in the X position port 8 operates as an up link port To ensure that the up link switch is in the proper position observe port 8 s LINK TX LED If this LED is illuminated or flickering the switch is properly set If it is off try the other switch position If neither position seems to work check the 10BASE T cable and the connected device for pro...

Страница 26: ... to configure each unit of the stack If an ST80 is being used as a non stacked unit the Stack Enable switch must be in the OFF position When two or more ST80s are stacked the bottom unit should be set to the OFF position and all other units should be in the ON position For further information about the Stack Enable switch see Section 3 9 Stacking the ST80s ...

Страница 27: ... Section of the applicable chapter of this manual Also check to make sure that the various components of the network are interoperable 2 Check the cables and connectors to ensure that they have been properly connected and the cables wires have not been crimped or in some way impaired during installation About 90 of network downtime can be attributed to wiring and connector problems 3 Make sure tha...

Страница 28: ... of the problem Any changes to system administration procedures should all be noted in this record 5 3 Return Material Authorization RMA Procedure All returns for repair must be accompanied by a Return Material Authorization RMA number To obtain an RMA number please use this URL https rma garrettcom com rma rma_request_noaccount php to fill out the form Please have the following information readil...

Страница 29: ...ng container 3 GarrettCom is not responsible for your return shipping charges 4 Ship the package to GarrettCom Inc 47823 Westinghouse Dr Fremont CA 94539 Attn Customer Service APPENDIX A WARRANTY INFORMATION GarrettCom Inc warrants its products to be free from defects in materials and workmanship for a period of three 3 years from the date of shipment by GarrettCom During this warranty period Garr...

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