MULTILINK AND MULTILINK II MEDIA CONVERTERS
Contents
1. 2002 All rights reserved Black Box Corporation BLACK BOX NETWORK SERVICES MULTILINK ANG MULTILINK Tl MEDIA CONVERTERS Key Features gt Layer 2 switching media conversion with custom VLAN support gt Distances up to 40 km with SM40 models gt Managed and unmanaged models P Twisted pair ports autonegotiate for 10 or 100 Mbps speed gt MultiLink aggregates multiple 10 100 copper links over a single fiber pair gt Multilink I connects two 10 100 copper links over a primary fiber pair gt ifthe primary one fails Multilink Il sends data via a second fiber pair woe 12 14 2002 26437 Make better use of your fiber optic runs with these Layer 2 copper to fiber converters Multilink onnect three or four network 10BASE T 100BASE TX devices into this box for cost effective media conversion from copper to a single pair of fiber optic cabling Available in 3 to 1 managed or 4 to 1 unmanaged versions with SC or ST connectors the MultiLink aggregates your Ethernet or Fast Ethernet links over either multimode or single mode fiber Not only does this traffic aggregator convert 10 Mbps or 100 Mbps copper to fiber optic signals and enables you to take advantage of longer distances of fiber optics but it also negotiates per duplex speeds Use these media converters in a campus environment for example to connect individual departments or buildings via fiber t2. Weight 1 3 Ib 0 6 kg MultiLink I Converters Approvals UL 1950 FCC Part 15 Class A CE Standards IEEE 802 3u IEEE802 1p 100BASE TX 100BASE FX 10BASE T FDX flow control HDX back pressure flow control Distance Maximum LB1301A SC LB1301A ST LB1302A SC LB1302A ST 2 km 1 2 mi LB1301A SM15 LB1302A SM15 15 km 9 3 mi LB1301A SM40 LB1302A SM40 40 km 24 9 mi Connectors LB1301A 2 RJ 45 2 pair SC or ST LB1302A 2 RJ 45 2 pair SC or ST 1 4 pin DIN RS 232 All 1 3 prong IEC power Hardware Type Store and forward wire speed non blocking switch MIBs Supported Managed models only MIB II RFC 1213 1215 RFC 2474 DSCP private MIBs Conversion Method Buffered Media Domain BMD Speed Maximum Switching fabric 1 4 Gbps On UTP and fiber optic ports 10 or 100 Mbps half duplex 20 or 200 Mbps full duplex Indicators All 12 LEDs 3 per each 10 100 port Link Activity FDX 100M 2 on fiber optic port Link Activity FDX 1 Power 1 Test LB1302A models also have 1 RCV and 1 Ready LED Protocol Transparent auto learning switch Temperature Tolerance Operating 32 to 113 F 0 to 45 C Storage 22 to 149 F 30 to 65 C Humidity Tolerance 10 to 90 noncondensing Power 100 240 VAC 50 60 Hz autosensing internal power supply Size 1 6 H x 8 7 W x 5 9 D 4 1 x 22 1 x 15 cm Weight 2 Ib 0 9 kg i amp
3. ultiLink hese media converters offer managed or unmanaged 10BASE T 100BASE TX to 100BASE FX media conversion and fail safe options for keeping your fiber optic connections intact Available in managed LB1302A and unmanaged LB1301A versions the BLACK BOX MultiLink II provides shared Layer 2 conversion between its two copper ports and two fiber ports The twisted pair ports which are buffered offer VLAN protection between them Along with providing bidirectional copper to fiber conversion the MultiLink Il can be used for redundancy of your fiber optic links or as a basic store and forward nonblocking switch within a ring or string topology When used to establish a redundant link the MultiLink II is ideal for a mission critical application It gives you peace of mind when you want to be sure that the connection between your network devices and fiber infrastructure is always available In a typical redundant link application a pair of MultiLink Ils are installed between network devices and the fiber optic cable with each unit having two ports connected between them one for primary communications and the other for standby If the primary fiber link fails the MultiLink I units recognize the loss of link signals and automatically switch communications from the primary to the backup fiber link When link signal is restored to the primary link communications are automatically switched back to it NO
4. TE You can also use a single MultiLink II to establish a backup fiber optic link but you must first ensure that the fiber devices attached to its ports support this type of configuration Set up to operate as a 4 port switch the MultiLink II Media h Converter can operate as an add drop multiplexor ADM access device for interconnecting dozens of network devices within a ring or string architecture Setting up your network with ring or string configurations enables you to do a lot more with less fiber It s particularly useful in highway or railway control or video surveillance applications where you want to interlink control or surveillance stations over fiber optic Specifically you can place a MultiLink II at each station in the ring or string with one 100BASE FX port on each unit devoted to an upstream MultiLink II connection and the other 100BASE FX port linked to the downstream MultiLink II connection At each station you can then connect control and monitoring equipment via twisted pair cable to the MultiLink II s two 10BASE T 100BASE TX ports As with the original MultiLink Converters LB1350A LB1351A the MultiLink Il products feature buffering technology that enables you to communicate across greater distances and provide greater flexibility for planning a network Because the devices rely on non repeater full retiming technology they won t contribute to your network s repeater count or clutter th
5. all ports within the same bandwidth domain You can then operate the MultiLink as a conventional store and forward switch complete with a 1K MAC address table and 300 seconds aging When used as a converter the MultiLink device provides Layer 2 copper to fiber conversions while autonegotiating 10 100 Mbps connections on the copper side and making 100 Mbps connections on the fiber side In most cases the copper ports automatically adapt to work at the highest possible performance although forced operation may be required in some situations But it s not just any ordinary continued on page 2 continued from page 1 media conversion MultiLink products feature sophisticated buffering technology that enables you to achieve greater distances on the connected segments as well as greater flexibility when you re planning your network Many 100BASE TX to 100BASE FX media converters use repeater technology so they become part of the collision domain introduce additional delay to the network and contribute to the repeater count With MultiLink Converters you have no such worries They take a non repeater full retiming approach by creating a Buffered Media Domain BMD Within this domain you can extend a network in any network architecture regardless of the number of repeaters present A domain created by a pair of like MultiLink products always operates at maximum performance 100 Mbps at full duplex even while
6. e whether it s 10 or 100 Mbps speeds or half or full duplex Front panel diagnostics inform you of every port s operating mode Each copper port has three status LEDs link activity duplex mode and connection speed and each fiber port has two status LEDs link activity and duplex mode If there s a problem transmitting to a remote device across the fiber optic segment you re alerted to it with the MultiLink IIs built in Far End Fault feature as long as the remote device supports this feature When a loss is detected the local device s link LED shows it An LED on the MultiLink II shows you when the FEF feature is enabled The MultiLink II also has an autocross function on its copper ports so there s no need to swap out straight through cables for crossover ones The MultiLink II configures its copper termination for either MDI or MDI X operation The managed models also have a front panel RS 232 console port Through this 4 pin mini DIN connection you can connect a serial management terminal with the included serial cable and manage the MultiLink Il from a remote location while using basic text menus If you want to use an SNMP platform such as HP OpenView and SNMPe just import the product s MIBs into the platform after assigning IP settings through the RS 232 interface The managed models also allow you to set port priority schemes You can specify high or low priority to traffic on a per port bas
7. e network s collision domain and in turn contribute to any possible delay By creating a Buffered Media Domain BMD the MultiLink II enables you to extend a network in any network architecture no matter how many repeaters are present and still see maximum performance You can expect this performance even in a network where your interconnected devices operate at different rates and modes Because the MultiLink II puts the two twisted pair ports in separate VLAN protected broadcast domains there s security between ports The fiber optic port along with having its own broadcast domain is also a member of the twisted pair domains So users attached to the copper ports can network with resources attached to the fiber port only This way a service provider can distribute its services to multiple users via a common fiber link while keeping each user port isolated from other user ports This security feature which is enabled and disabled using front panel DIP switches remains transparent to other attached networks When it s disabled the MultiLink Il operates as a basic 4 port switch When used as a media converter the MultiLink II provides Layer 2 twisted pair to fiber optic conversions while autonegotiating connection speeds on the copper side and making 100 Mbps connections on the fiber side Autonegotiating the twisted pair ports in most instances adapt automatically to the highest performance possibl
8. h or low priority You can set the managed MultiLink to determine outbound priority too through its DSCP Port Priority function The managed model also offers protection against broadcast storms activity which can overload your network and slow it down To counter this type of activity the managed MultiLink allows you to specify the relative amount of broadcast traffic that can be forwarded by the device as much as 25 and as little as 3 Each copper port on both managed and unmanaged models has three status LEDs link activity duplex mode and connection speed and the fiber port has two status LEDs link activity and duplex mode The managed models also feature two LEDs relating to management functions All MultiLink Converters have a Far End Fault FEF feature When enabled FEF alerts you to problems on the connected fiber optic segment If the MultiLink detects fiber optic link loss on the remote side of the link and if the remote device supports FEF a Far End Fault signal is relayed back to the MultiLink local device alerting you to silent failures on your network through an LED And there s no need to use crossover cables UTP ports on both managed and unmanaged models feature an autocross MDI MDI X function so the MultiLink automatically adjusts to the type of connection whether it s MDI or MDI X mode of operation Packaged in a rugged half rack enclosure the MultiLink can be used on the de
9. interconnected devices operate at different rates and modes For copper connections the unmanaged model has four 10BASE T 100BASE TX ports with its firmware set to allow bandwidth priority for the fourth UTP port This oreferred port can be used for a user who needs a lot of bandwidth The managed model in contrast has three 10BASE T 100BASE T ports plus a front panel console port which enables you to control it remotely through an RS 232 management interface You can even manage the MultiLink using full in band SNMP via a management station platform such as HP OpenView and SNMPc To do this just load a MIB file when configuring the device Using the MultiLink s terminal connection you can override its DIP switch settings and monitor the device A basic text menu prompts you through all options for setting network console and SNMP parameters To make the console connection you simply plug one end of the serial cable that s shipped with the unit into the 4 pin h DIN console port and the other end into an RS 232 terminal emulation program of your choice Port priority schemes on the managed model allow you to specify high or low priority to traffic it processes This can be done on a per port basis in which all traffic from a specified input port is considered high priority or through 802 1 Port Priority in which the inbound port examines the priority field within a VLAN tag to determine hig
10. is All traffic from a specified input port can be designated as high priority This port priority feature makes the MultiLink II useful in IP phone applications in which IP data traffic shares communication ports with other types of data In this instance you could assign highest priority to the IP phone traffic Or set the MultiLink II up to process data by VLAN tag headers Using this 802 1 Port Priority method the unit s inbound port examines the priority field within a VLAN tag to determine the data s priority The MultiLink II also supports DSCP Port Priority which enables you to determine outbound priority too Use the managed MultiLink II to also guard against broadcast storms To curb this type of activity you can specify a relative amount of broadcast traffic that the converter is able to forward This can be as much as 25 and as little as 3 Install the MultiLink II in a 19 rack or cabinet or simply use it as a desktop device Three mounting holes enable the unit to be installed either horizontally or vertically on a wall l i Ordering Information ITEM CODE ITEM MultiLink Media Converters Managed 3 1OBASE T 100BASE TX to 1 Multimode 1310 pm 2 kilometers LB1350A SC LB1350A ST 1 Single Mode 1310 pm 15 kilometers LB1350A SM15 1 Single Mode 1310 um 40 kilometers LB1350A SM40 Unmanaged 4 10BASE T 100BASE TX to 1 Multimode 1310 um 2 kilometers LB1351A SC LB1351A ST 1 Si
11. ngle Mode 1310 um 15 kilometers SC LB1351A SM15 1 Single Mode 1310 um 40 kilometers SC LB1351A SM40 MuttiLink and l Packages Include e Media converter unit e Strip of 4 adhesive plastic feet for anti skid desktop placement e 1 AC power cord e User manual e Managed models only 1 6 foot 1 8 m 4 pin DIN male to DB9 female console cable e Managed models only Floppy diskette with MIBs y MultiLink II Media Converters Unmanaged 2 10BASE T 100BASE TX to 2 Multimode 1310 um 2 kilometers LB1301A SC LB1301A ST 2 Single Mode 1310 um 15 kilometers LB1301A SM15 2 Single Mode 1310 um 40 kilometers LB1301A SM40 Managed 2 10BASE T 100BASE TX to 2 Multimode 1310 um 2 kilometers LB1302A SC LB1302A ST 2 Single Mode 1310 um 15 kilometers SC LB1302A SM15 2 Single Mode 1310 um 40 kilometers SC LB1302A SM40 For optimum performance order Duplex Fiber Optic Cable PVC ST ST Custom Lengths Multimode Duplex Fiber Optic Cable PVC SC SC Custom Lengths Single Mode Duplex Fiber Optic Cable PVC SC SC Custom Lengths EFN5010 CAT5 Patch Cable 100 MHz 4 Pair Straight Pinned PVC Beige 10 ft 3 m EVMSL05 0010 EFN062 CC EFN4025 Black Box offers the best warranty program in the industry Fido Protection For more information request FaxBack 22512 l i
12. o your enterprise switch This way you not only stretch your network connections but increase data security while minimizing the effects of electromagnetic interference on your data links It s also the ideal solution for remote locations with just a handful of workstations and no great need for a dedicated switch or hub Or use it in fiber to the home FTTH or fiber to the desktop FTTD applications You can connect four homes or workstations to a fiber optic backbone over one pair of fibers with the MultiLink You can operate a MultiLink device as 1 a switch 2 a switch with built in port aggregation and security functions and 3 a bidirectional media converter By default the MultiLink operates in the second capacity as a secure Ethernet switch keeping each 10BASE T 100BASE TX port isolated in secure VLAN protected broadcast domains The fiber port also has a broadcast domain too But it s also a member of the copper domains This means users attached to the copper ports can network with resources attached to the fiber port only With this level of security the MultiLink is ideal for service providers who use a common fiber link to distribute services to multiple users but also want to keep each user port isolated from other user ports To deploy the MultiLink as a switch simply flip a DIP switch on the front panel Doing this disables port based VLANs pre set in the firmware and puts
13. sktop or shelf Specifications MultiLink Converters Approvals UL 1950 1955 EN60950 FCC Part 15 Subpart A Class A VCCI Class ICES EMC CE Standards IEEE 802 3u IEEE802 1p 100BASE TX 100BASE FX 10BASE T FDX flow control HDX back pressure flow control Distance Maximum LB1350A SC LB1350A ST LB1351A SC LB1351A ST 2 km 1 2 mi LB1350A SM15 LB1351A SM15 15 km 9 3 mi LB1350A SM40 LB1351A SM40 40 km 24 9 mi Connectors LB1350A 4 RJ 45 1 pair SC or ST LB1351A 3 RJ 45 1 pair SC or ST 1 4 pin DIN RS 232 All 1 3 prong IEC power Hardware Type Store and forward wire speed non blocking switch MIBs Supported Managed models only MIB II RFC 1213 1215 RFC 2474 DSCP private MIBs Conversion Method Buffered Media Domain BMD Speed Maximum Switching fabric 1 4 Gbps On UTP and fiber optic ports 10 or 100 Mbps half duplex 20 or 200 Mbps full duplex Indicators All 12 LEDs 3 per each 10 100 port Link Activity FDX 100M 2 on fiber optic port Link Activity FDX 1 Power 1 Test LB1351A models also have 1 RCV and 1 Ready LED Protocol Transparent auto learning switch Temperature Tolerance Operating 32 to 113 F 0 to 45 C Storage 4 to 176 F 20 to 80 C Humidity Tolerance 10 to 90 noncondensing Power 100 240 VAC 50 60 Hz autosensing internal power supply Size 1 7 H x 8 8 W x 5 9 D 4 3x 22 4 x 15 cm
Download Pdf Manuals
Related Search