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Magnum 4K24 Switches    Installation and User Guide      (10/04) 

 

34 

www  GarrettCom  com

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APPENDIX B : Internal DC Power Supply Options 

 
B1.0 

SPECIFICATIONS - FOR MAGNUM 4K8 DC-POWERED SWITCHES 

 

 

Power Supply (Internal -48VDC Option) 
 

 

DC Power Connector:  3 terminals:  “

-

“, “GND”, “+” 

 

 

Input Voltage:      36 - 70 VDC 

 

    Power Consumption: Model 4K24: 21 watt typical, 30 watts max.  

Power Supply (Internal 24 VDC Option) Industrial Application 
 

 

DC Power Connector:  3 terminals:  “

-

“, “GND”, “+” 

 

 

Input Voltage:      20 - 36 VDC 

 

    Power Consumption: Model 4K24: 21 watt typical, 30 watts max. 

Power Supply (Internal 125 VDC Option) Industrial Application 
 

 

DC Power Connector:  3 terminals:  “

-

“, “GND”, “+” 

 

    Input Voltage:      120 - 160 VDC 

 

    Power Consumption: Model 4K24: 21 watt typical, 30 watts max. 

 
 

With the exception of the power supply, all specifications and functions of 

Magnum 4K-Series-48VDC, 24VDC and 125VDC models are identical to those listed in 
the main manual. 

 

B2.0-48VDC, 24VDC & 125VDC POWER OPTION, THEORY OF OPERATION

  

 

The -48VDC, 24VDC & 125VDC power option are designed using diodes 

inside on each DC power input line behind the two external power connection terminals, 

so that the power from an external 

source can only flow into the hub. 

This allows the Switch to operate only 

whenever DC power is correctly 

applied to the two inputs.  It protects 

the Switch from incorrect DC input connections. An incorrect polarity connection, for 

example, will neither affect the Switch, its internal power supply , nor will it blow the 

fuse in the internal power supply.  

 

The manual power “On-Off” Switch (optional) is used for powering the unit on 

and off when it is placed into or taken out of service. 

 

B3.0 

 APPLICATIONS FOR DC POWERED SWITCHES 

 

Magnum 4K-Series Fiber Switches are easily installed in a variety of 

applications where -48VDC, 24VDC & 125VDC power is used as the primary power 
source. The- 48VDC, 24VDC & 125VDC power configuration provides an Ethernet 
networking solution utilizing a special power supply in hubs with a proven track record.  
 

The –48VDC solution is particularly useful in the telecommunication industry, 

A+

A-

GND

GND

CHASSIS

FUSE

+

-

SUPPLY

HUB

POWER  SWITCH

Содержание Magnum 4K24C

Страница 1: ...www GarrettCom com Magnum 4K Series 4K24 Switches Installation and User Guide ...

Страница 2: ...onal Switch are trademarks and Personal Hub is a registered trademark of GarrettCom Inc Important The Magnum 4K24 Switches contains no user serviceable parts Attempted service by unauthorized personnel shall render all warranties null and void If problems are experienced with the Magnum 4K24 Switches consult Section 6 Troubleshooting of this User Guide Copyright 2003 GarrettCom Inc All rights rese...

Страница 3: ...tions may cause harmful interference in a residential installation This equipment generates uses and can radiate frequency energy and if not installed and used in accordance with the instructions may cause harmful interfernce to radio communications However there is no guarantee that interference to radio communications However there is no guarantee that interference will not occur in a particular...

Страница 4: ...c 15 3 2 4 Connecting Twisted Pair RJ 45 CAT3 CAT5 15 3 3 Rack mounting 16 3 4 Installing and Removing FKM Fiber Port Modules 17 3 4 1 Preparation for Changing FKM Fiber Port Modules 17 3 4 2 Installing FKM Modules in Magnum 4K24F Switches 19 3 4 3 Removing FKM Modules from Magnum 4K24F Switches 20 3 5 Manual settings for Fiber ports HDX or FDX 21 3 6 Powering the Magnum 4K24 Switch 22 4 0 OPERATI...

Страница 5: ...Y OPTIONS 34 APPENDIX C INTERNAL DC DUAL SOURCE POWER OPTION 37 Revisions 10 04 Edited minor update 04 03 Edited minor update Rev E 04 02 Updated Rack mounting and Appendix section B C with 24VDC and 125VDC option Rev D 01 02 Updated Operating Environment Spec Rev C 04 01 Change the company name to GarrettCom Inc Formerly it was Garrett Communications There are no changes to the content of the mat...

Страница 6: ...oor Ethernet Switch for temperature uncontrolled locations 6 10 100 and 2 100Mb fiber ports 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 ...

Страница 7: ...L single mode fiber optic 10 km 32 810 ft Maximum Standard 100Mb Fast Ethernet Segment Lengths 10BASE T CAT 3 4 5 UTP 100 m 328 ft 100BASE TX CAT 5 UTP 100 m 328 ft Shielded twisted pair 150 m 492 ft 100BASE FX half duplex multi mode 412 m 1350 ft 100BASE FX full duplex multi mode 2 0 km 6 562 ft 100BASE SX short wavelength HDX m m 300 m 935 ft 100BASE FX half duplex single mode 412 m 1350 ft 100B...

Страница 8: ...000m Packaging Enclosure Rugged High strength metal Suitable for stand alone or rack mounting Dimensions 1 75 in H x 17 0 in W x 9 0 in D 4 45cm H x 43 2cm W x 22 9cm D Weight 7 1 lb 3 2 Kg rack mount models Cooling method Fan cooled 7 cfm Power Supply Internal AC Power Connector IEC type male recessed at rear of chassis with adjacent manual ON OFF switch on AC models only Input Voltage 110 to 240...

Страница 9: ...er input connectors are in the rear LEDs are in the front Fiber port modules for Magnum 4K Series Models 4K24F and 4K16 FKM 2SC Fiber module with two 100Mbps multi mode FX SC connectors FKM 2ST Fiber module with two 100Mbps multi mode FX ST connectors FKM 2MTRJ Fiber module with two 100Mbps multi mode FX MTRJ Small Form Factor connectors FKM 2SSC Fiber module with two 100Mbps 20Km single mode FX S...

Страница 10: ... the event there are items missing or damaged contact the party from whom you purchased the product If the unit needs to be returned please use the original shipping container if possible Refer to Section 6 Troubleshooting for specific return procedures 2 2 Product Description Magnum 4K24 Switches Magnum 4K24 Switches boost the performance of large Ethernet LANs with the flexibility of both twiste...

Страница 11: ...for advanced performance as well as to support large networks The Magnum 4K Series Switches with store and forward switching filter all faulty packets to minimize traffic congestion 2 2 1 Magnum 4K24F and 4K24C Switch chassis Magnum 4K24F and 4K24C Switches come in a 24 port rack mountable chassis The optional fiber port is user configurable and can be selected from the offered popular fiber port ...

Страница 12: ...ck mounting where cabling is accessed from the rear of the rack while the operating status LEDs are monitored from the front Typically such arrangements are found in telco rack installations The Magnum 4K24FR is dual speed 10 100Mbps switch and has two fiber connector port options The switching capability allow the Magnum 4K24F to support multiple workgroups smoothly each with its own switched 100...

Страница 13: ...rts are optional for Magnum 4K24F Switch In a two fiber port module all of the fiber ports are of the same speed the same multi or single mode type and the same connector type Multi mode 100Mbps models are available with ST SC and MT RJ connectors Single mode 100Mbps models are available with SC connectors The 100Mb fiber port modules on the Magnum 4K24F normally are set factory default to operate...

Страница 14: ...ith the device at the other end of the cable in order for the LEDs to provide valid indications of operating conditions 2 2 6 Frame Buffering and Latency The Magnum 4K24F or 4K24C are store and forward switches Each frame or packet is loaded into the Switch s memory and inspected before forwarding can occur This technique ensures that all forwarded frames are of a valid length and have the correct...

Страница 15: ...ide maximum network performance with the least dropped packets When the 4K24 Switch detects that its free buffer queue space is low the Switch sends industry standard full duplex only PAUSE packets out to the devices sending packets to cause flow control This tells the sending devices to temporarily stop sending traffic which allows a traffic catch up to occur without dropping packets Then normal ...

Страница 16: ...ation Standard ports in front or Reverse ports in rear rack mounting The 4K24 is offered with ports and LEDs in the front or in a reverse package with LEDs in front and all Ethernet and power cables in the rear As a special feature of the 4K24 Reverse LEDs are both front and rear Standard 19 rack mount brackets are included while ETSI and 23 Telco are optional Plug and Play installation for high p...

Страница 17: ...egments interconnect with the network center The Switch needs to provide high speed switching support for two central servers for a 100Mb connection to a router and to a mix of 10 and 100Mbps local workgroups of over a dozen users printers etc The Magnum 4K24F equipped with two 100Mb fiber ports and 22 RJ 45 10 100 ports provides an economical solution in a rack mount box No Media Converters are n...

Страница 18: ...bone expansion The 24 switched copper ports are provfided by a Magnum 4K24 Should the number of servers expand more than one server can be accessed at full speed from any switched 4K24 port by any of the users simultaneously Fig 2 4c Magnum 4K24 provides a 10 100Mb Switch with non blocking performance for small a office Router 2X 4X 6 8 10 12 14 16 18 20 22 24 1 X 1 3 5 7 9 11 13 15 17 19 21 23 Ma...

Страница 19: ...4K Series Switches as well as connection of the various Ethernet media types 3 1 Locating Magnum 4K24 Switches The location of a Magnum 4K Series Switch is dependent on the physical layout of the network Typically the Switch is placed in a central wiring location where groups of network devices need to be connected in order to communicate with each other These Switches are typically rack mounted i...

Страница 20: ...ctors are clean before connecting Note One strand of the duplex fiber optic cable is coded using color bands at regular intervals you must use the color coded strand on the associated ports at each end of the fiber optic segment 3 Connect the Transmit TX port light colored post on the Magnum FKM to the Receive RX port of the remote device Begin with the color coded strand of the cable for this fir...

Страница 21: ...T CAT 5 cables should be used when making 100BASE TX connections When the ports are used as 10BASE T ports CAT 3 may be used In either case the maximum distance for unshielded twisted pair cabling is 100 meters 328 ft Media IEEE Standard Connector Twisted Pair CAT 3 4 5 10BASE T RJ 45 Twisted Pair CAT 5 100BASE TX RJ 45 NOTE It is recommended that high quality CAT 5 cables which work for both 10 M...

Страница 22: ... Rack mount installation requires special 19 rack mounted brackets and screws included with each 4K24 unit The brackets attach to the front sides of the Switch which is then fastened into a standard 19 RETMA rack The 23 brackets and ETSI brackets are also available optional for Rack mounting of Magnum 4K Series Switches The 23 brackets are popular in the Telco industry where they are a standard fo...

Страница 23: ...de port de fibre comme la plupart de matériel électronique sont sensibles à la décharge statique Utilisez les mesures appropriées d cEsd en manipulant les modules gauches Changing FKM modules in a Magnum 4K24F Switch is a complex procedure that requires great care Please read the Port Module Insertion Guide and this 4K24 Manual thoroughly before doing any field changes of FKM modules If you are in...

Страница 24: ...24F unit notice that there are two FKM connector headers located inside on the main PC board next to Port 2C for FKM Module mounting These headers are located directly behind the Fiber port cut out Figure 3 4 1 b Magnum 4K24F Switch Top View without Chassis Cover 22 Phillips Head Screws on Top PWR TopChassis Cover Magnum 4024C Switch 100M Col FDX Link Act Power 100M Col FDX Link Act 2 4X 6 8 10 12...

Страница 25: ...p chassis cover See procedure in Section 3 4 1 above Step 2 The figure here illustrates the basic layout of an individual FKM module Each FKM module fits into the selected FKM connector header Align the connector socket on the bottom of the FKM module with the connector pins on the main board header The pins are straight and firm to facilitate the installation Step 3 Be sure the pins are precisely...

Страница 26: ... 3 Removing FKM Modules from Magnum 4K24F Switches Step 1 Remove chassis cover See procedure in Section 3 4 1 above Caution Be sure the power cord is unplugged Attention Soyez sûr que le cordon de secteur est débranché Step 2 Remove retaining screw holding the FKM and Face Plate On top of the FKM module there is one retaining screw for each FKM module used to secure the FKM module in position see ...

Страница 27: ...FDX Each fiber port can be set as half duplex HDX by manually settings the DIP switches These are provided under the fiber ports inside of the chassis as shown in the figure 3 5 The blue DIP switches control half duplex and full duplex of fiber port 2 and 4 Fig 3 5 Dip Switch Settings If a user toggles switch 4 to the DOWN position then fiber port 2 will be set to half duplex The factory default s...

Страница 28: ...al universal power supply and have a recessed male IEC connector for the AC Figure 3 5 Magnum 4K24 AC power connector power cord at the left rear A manual AC power ON OFF switch is adjacent A six foot 115 VAC 60 Hz standard power cord is supplied with each unit shipped within North America For DC power options see Appendices ON OFF 110 220 VAC 47 63Hz 1 0 0 5A ...

Страница 29: ...forward the packet Packets whose source and destination addresses are on the same port segment will be filtered constraining them to that one port and relieving the rest of the network from processing them A packet whose destination address is on another port segment will be forwarded to the appropriate port and will not be sent to the other ports where it is not needed Traffic needed for maintain...

Страница 30: ...u 24 for straight through twisted pair cabling from the 4K24 switched port to a user device or the 1X port for cross over or up link segment connections from the first 4K24 port to a repeater or hub or switch Verify proper port connection by noting the port s LINK ACT status which is illuminated when a proper link is made and is blinking when there is activity Note Port 1 and Port 1X both RJ45 por...

Страница 31: ...ds only auto negotiate when the computer system that they are in is powered up These are exceptions to the negotiate at LINK enabled rule above but may be occasionally encountered When operating in 100Mb half duplex mode cable distances and hop counts may be limited within that collision domain The Path Delay Value PDV bit times must account for all devices and cable lengths within that domain For...

Страница 32: ...ce is commanded to stop transmitting into the switched port for sufficient time to let the Switch reduce the buffer space used When the available free buffer queue increases the Switch will send a RESUME packet to indicate the transmitter to start sending the packets Of course the transmitting device must also support the 802 3x flow control standard in order to communicate properly during normal ...

Страница 33: ...Multi mode 2 0 4 1300 62 5 125 50 125 20 23 5 31 31 9 0 5 5 2 5 2 0 14 12 5 4 FKM SSC 100Mb FX Single mode 18 0 4 1300 9 125 15 31 14 28 17 5 35 FKM MTRJ 100Mb FX Multi mode 2 0 4 1300 62 5 125 50 125 20 23 5 31 31 9 0 5 5 3 0 2 0 15 8 12 2 5 5 4 0 FKM SSCL 100Mb FX Single mode 40 0 4 1300 9 125 5 34 27 54 32 5 65 Note The use of either multi mode or single mode fiber to operate at 100Mbps speed o...

Страница 34: ...n instructions with illustrations Remove the FKM s from the shipping container Be sure to keep the shipping container should you need to ship any of the FKMs separately at a later date In the event there are items missing or damaged contact your supplier If you need to return the unit use the original shipping container if possible Refer to Chapter 6 for specific return procedures 5 2 Product Desc...

Страница 35: ...nality of the these two modules is the same the FKM MSC is equipped with an SC type snap in connector instead of an ST type 5 2 3 FKM SSC and SSCL 100Mbps single mode FX SC type snap in The Magnum FKM SSC and SSCL is a single mode 100Mbps fiber optic module equipped with a dual SC type connector It functions as a full fiber optic transceiver to support single mode fiber networks To distinguish the...

Страница 36: ...nality of this 100BASE FX multi mode FKM MTRJ is the same as the ST and SC types Note that the other end of the fiber cable may have a different connector not necessarily an MT RJ type 5 2 5 FKM Blank The FKM Blank is a blank face plate that must be installed in any empty FKM slot When the Magnum 4K24 chassis contains less than two front mounted FKMs the empty front slots must be covered with the ...

Страница 37: ...efer 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 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 conne...

Страница 38: ...tations terminals and printers plus the various network media types being used 4 A record of changes that have been made to your network configuration prior to the occurrence of the problem Any changes to system administration procedures should all be noted in this record 6 3 Return Material Authorization RMA Procedure All returns for repair must be accompanied by a Return Material Authorization R...

Страница 39: ... in Styrofoam popcorn type packing material This material may cause electro static shock damage to the unit 2 Clearly mark the Return Material Authorization RMA number on the outside of the shipping container 3 GarrettCom is not responsible for your return shipping charges 4 Ship the package to GarrettCom Inc 213 Hammond Ave Fremont CA 94539 Attn Customer Service APPENDIX A WARRANTY INFORMATION Ga...

Страница 40: ...VDC 24VDC 125VDC power option are designed using diodes inside on each DC power input line behind the two external power connection terminals so that the power from an external source can only flow into the hub This allows the Switch to operate only whenever DC power is correctly applied to the two inputs It protects the Switch from incorrect DC input connections An incorrect polarity connection f...

Страница 41: ...his section describes the installation of the 48 VDC 24VDC 125VDC power source leads to the 48 VDC 24VDC 125VDC power terminal block on the Magnum Ks see figure at the right In this picture the 48VDC terminal block on the Magnum 4Ks is located on the rear of the unit and is equipped with three 3 screw down lead posts It is similar for 24VDC and 125VDC options on Magnum 4Ks The leads are identified...

Страница 42: ...east 4 inches apart with the first one located within 6 inches of the terminal block B5 0 OPERATION Operation of the Magnum Ks with the optional 48VDC 24VDC 125VDC power supply is identical to that of the standard AC powered models B6 0 ORDERING INFORMATION To order the optional 48VDC power supply factory installed add a suffix of 48VDC after the product s standard model Example Magnum 4K24 48VDC ...

Страница 43: ...cations and configuration options for the Magnum 4K8 48VDC 4K8 24VDC 125VDC with this Dual Source option are identical to those listed in the Magnum 4K Series Fiber Switches Installation and User Guide including Appendix B Internal DC Power Supply Option C2 0 MAGNUM 4K SERIES with 48VDC 24VDC 125VDC Dual Source option The 4K8 Switch models with the internal 48VDC 24VDC 125VDC Dual Source power sup...

Страница 44: ...ry terminals are identified as positive A negative A and the secondary power terminals as negative B positive B The chassis earth or ground GND is a threaded post with a 6 nut Figure C5 0 48VDC Dual Source wiring connections to the External Terminal Block on a Magnum 48VDC with Dual Source option Note The GND should be hooked up first The 4K unit has a floating ground so the user may elect to Grou...

Страница 45: ...c 48V for regular model with no ON OFF switch Or Dual Src48V SWITCH for model with ON OFF switch Similarly order Dual Src24V or Dual Src125V as a separate line item following the product model Example Magnum 4K24 24VDC or Magnum 4K24 125VDC Dual Src24V for regular model with no ON OFF switch Dual Src24V SWITCH for model with ON OFF switch C7 0 OPERATION Operation of the Dual Source Magnum 4K Serie...

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