Lantronix Switch LMS8 A User Manual

LMS8-A  
Mini Switch  
Installation Guide  
 
Installation Tips  
Note: These tips are additional to the Installation  
Instructions that can be found on the back of  
the unit.  
All ports on the LMS8-A can support full  
duplex operation - please make sure that  
each port has the proper switching setting  
for the desired modes (default switch set-  
tings are for half duplex). When the unit is  
powered on, verify the correct modes of  
operation by examining the LEDs for each  
port. No further configuration is necessary.  
If the correct mode of operation does not  
appear in the LED display, check the cable  
and connecting equipment. If changes are  
made, power the unit off and then on again  
to reset.  
Use of the optional AUI on Port 1 will negate  
the ability to use the RJ45 for that port.  
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 LMS8-A is shipped with either a  
120VAC (-01 version) or a 220VAC (-02 version)  
power supply. Input power requirements are 15  
volts at 1.0 Amps.  
CAUTION:  
Not for installation in air ducts or plenums  
or other environmental air handling spaces.  
Changes or modifications to this device not  
explicitly approved by Lantronix will void the  
user’s authority to operate this device.  
3
 
Cable Requirements  
The Lantronix LMS8-A 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 LMS8-A 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 LMS8-A:  
LMS8-A End  
nodes  
MDI-X MDI  
ports  
RD+  
RD-  
ports  
TD+  
TD-  
Pin 1  
Pin 2  
Pin 3  
Pin 6  
TD+  
TD-  
TD+  
TD-  
RD+  
RD-  
RD+  
RD-  
TD+  
TD-  
RD+  
RD-  
1. The cable between the LMS8-A and an  
end-node or another switch is straight  
through.  
2. The cable between the LMS8-A 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.  
4
 
Technical Support  
If problems occur during product operation,  
please check the LMS8-A switch settings, cables,  
connectors, network terminators, hardware  
compatibility and other network components first.  
Prior to contacting Lantronix Technical Support,  
please have the following information available:  
Model number and serial number  
Purchase date  
Network configuration  
Definition of the problem encountered  
Lantronix Technical Support can easily be  
ix.com. The website contains technical tips and  
other helpful product information.  
Lantronix Technical Support can also be  
reached via email at [email protected], or  
via telephone between the hours of 6:00 a.m.  
and 5:30 p.m. (PST) at 800-422-7044 (USA) or  
949-453-3990 outside of the United States.  
Your Lantronix LMS8-A Mini Switch 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 not cause harm-  
ful interference, and (2) this device must accept  
any interference received, including that which  
may cause undesired operation. Operation of  
this equipment in a residential area is likely to  
cause interference in which case the user, at his  
or her own expense, will be required to take  
whatever measures may be required to correct  
the interference.  
NOTE: The RJ45 ports are not for telephone use!  
5
 
Declaration of Conformity  
(according to ISO/IEC Guide 22 and EN 45014)  
Manufacturer’s Name:  
Lantronix  
Manufacturer’s Address:  
15353 Barranca Parkway  
Irvine, CA 92618 USA  
declares, that the product:  
Product Name:  
Micro Switch  
LMS8-A  
Model Number(s):  
conforms to the following standards:  
Safety: EN 60950:  
EMC: EN 55022:  
EN 50082-1:  
1988 + A1, A2  
1988 Class A  
1992  
IEC 801-2:  
1991/prEN55024-2:  
1992-4kV CD, 8kV AD.  
IEC 801-3:  
IEC 801-4:  
1992/prEN55024-3: 1991-3V/m  
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 92618  
949-453-3990 Fax: 949-453-3995  
Direct Sales: 800-422-7055 [email protected]  
International Sales: 949-450-7227 [email protected]  
Tech Support: 800-422-7044 [email protected]  
6
 
I
mportant Instructions  
For LMS and LFX Installation  
Design connections to avoid loops - these unmanaged switches  
do not support Spanning Tree Algorithm  
If using dedicated switch ports for a connection to a single  
server, single user or another switch, use full duplex if  
possible for much better performance  
If using 10BASE2, consider using a repeater connected to a  
LMS/LFX 10BASE-T port instead of a transceiver, or contact  
Lantronix for more information  
Avoid bottlenecks in network design by attaching servers 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 the signal)  
Because it is a store-and-forward device, the LFX2 filters out  
bad packets from attached network segments, so it can be  
used as a screen between a problem segment and the  
network backbone  
15353 Barranca Parkway Irvine California 92618 [email protected]  
949-453-3990 Fax: 949-453-3995 1 800-422-7055  
 

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