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4

Cable Requirements

The Lantronix LFX2-MA is compatible with UTP
(unshielded twisted pair) and STP (shielded
twisted pair) cables. EIA category 3,4 or 5 cables
can be supported on the RJ45 connectors.

All ports of the LFX2-MA are configured as MDI-X
ports; Port 2 has an MDI option for connecting to
hubs, repeaters or other switches.

The following cable configuration is suggested
for the cables attached to an LFX2-MA:

LFX2- End

MDI-X

MDI 

MA

nodes

ports

ports

Pin 1

TD+

TD+

RD+

TD+

Pin 2

TD-

TD-

RD-

TD-

Pin 3

RD+

RD+

TD+

RD+

Pin 6

RD-

RD-

TD-

RD-

1. 

The cable between the LFX2-MA and 
an end-node or another switch is straight
through.

2. 

The cable between the LFX2-MA and a hub
or repeater is not straight through but rather
a “crossover” (transmit pairs and receive
pairs are reversed).  By selecting the MDI
option (when available), a straight through
cable can be used.

Содержание LFX2-MA

Страница 1: ...LFX2 MA Fast Ethernet Extender Installation Guide ...

Страница 2: ...enerates packets and therefore supports network diameters greater than those possible if using only hubs or repeaters 4 Collision domain separation reduces unnecessary traffic on each segment which allows for greater throughput The LFX2 MA has 2 10 100 RJ45 ports each capable of autosensing both speed and half full duplex operation An alternate MII interface is available on one port and an alterna...

Страница 3: ...to reset If the optional MII or AUI port is selected for either one of the ports then the RJ45 interface on that port is rendered inoperative If the Link Duplex LED for a port is not lit please check the cable being used The port will only be operational if the LED is green Good Link Half Duplex or yellow Good Link Full Duplex Power Requirements The Lantronix LFX2 MA is shipped with either a 120VA...

Страница 4: ... switches The following cable configuration is suggested for the cables attached to an LFX2 MA LFX2 End MDI X MDI MA nodes ports ports Pin 1 TD TD RD TD Pin 2 TD TD RD TD Pin 3 RD RD TD RD Pin 6 RD RD TD RD 1 The cable between the LFX2 MA and an end node or another switch is straight through 2 The cable between the LFX2 MA and a hub or repeater is not straight through but rather a crossover transm...

Страница 5: ... can also be reached via email at support lantronix com or via telephone between the hours of 6 00 a m and 5 30 p m PST at 800 422 7044 USA or 714 453 3990 outside of the United States Your Lantronix LFX2 Fast Ethernet Extender is covered by a five year limited warranty WARNING This device complies with part 15 of the FCC rules Operation is subject to the following restrictions 1 this device may n...

Страница 6: ...5024 3 1991 3V m IEC 801 4 1988 prEN55024 4 1992 05kV Signal Lines 1kV Power Lines Supplementary Information The product complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC Manufacturer s Contact Director of Quality Assurance Lantronix 15353 Barranca Parkway Irvine CA 92618 USA Tel 949 453 3990 Fax 949 453 3995 15353 Barranca Parkway Irvine CA 926...

Страница 7: ...to the same switch as their most common clients Try to configure each side of the extender bridge so that nodes that will communicate frequently are on the same port To extend 100BASE FX fiber to maximum length use 2 LFX2 MAs with 100BASE FX fiber transceivers connected by a Category 5 cable this allows both fiber links to be extended to the 412 meter limit each LFX2 MA extender switch regenerates...

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