LDG RJ45, SLS-2 Operation Manual

SLS-2 OPERATIONS MANUAL MANUAL REV. A

LDG SLS-2 Two-Port

RJ45 Switch

PAGE 1

LDG Electronics

1445 Parran Road

St. Leonard MD 20685-2903 USA

Phone: [phone]

Fax: [phone]

[e-mail]

www.ldgelectronics.com



Table Of Contents

Introduction 3
Jumpstart, or “Real hams don’t read manuals!” 3
Specifications 3
Important Safety Warning 3
Getting to know your SLS-2 4

Front Panel 4
Rear Panel 5
Inside 6

Installation 6
Operation 8

Desktop / Local Operation 8
Remote Operation 8

Application Information 8

SLS-2 RJ45 Pin Diagram 10
Typical Kenwood Mic Pinout 10
Typical Icom Mic Pinout 11
Typical Yaesu Mic Pinout 11
Additional Application Information 12

Technical Support 13
Two-Year Transferrable Warranty 13
Out Of Warranty Service 13
Returning Your Product For Service 13
Product Feedback 14

PAGE 2

INTRODUCTION

LDG pioneered the automatic, wide-range switched-L tuner in 1995. From its laboratories in St.
Leonard, Maryland, LDG continues to define the state of the art in this field with innovative
automatic tuners and related products for every amateur need.

Congratulations on selecting the LDG SLS-2 two-port RJ45 switch. The SLS-2 is a versatile
electronic switch that enables the user to share two RJ45-connected devices with a common device.
Port selection is made via a pushbutton switch on the front panel of the SLS-2. Internal jumpers in
the SLS-2 allow rewiring the connections between the two switched RJ45 jacks and the common
jack.

JUMPSTART, OR “REAL HAMS DON’T READ MANUALS!”

Ok, but at least read this one section before operating the SLS-2:

1. The SLS-2 allows you to switch 8 circuits of an RJ45 common jack to one of the two switched

jacks. The default SLS-2 wiring is such that the port pinouts are 1-to-1, i.e. straight-through

wiring.

2. Connect an RJ45 plug to the common port, and and RJ45 plug to each of the two switched

ports. These can be any cables with RJ45 plugs installed, such as microphones, audio interface

cables, etc.

3. Connect a 12 volt power supply capable of supplying 100 mA to the 2.5 x 5.5 mm coaxial power

jack (center positive).

4. Press the front panel button to toggle the selected port. The front panel LEDs indicate which

port is active.

SPECIFICATIONS

Two switched RJ45 jacks

•

All 8 circuits switched

•

Inactive RJ45 jack is completely disconnected

•

Maximum current 1A per circuit

•

Remote operation possible (see Application Hints)

•

Requires 12 volts at 100 mA, 2.5 x 5.5 mm jack, center positive

•

IMPORTANT SAFETY WARNING

Never install antennas or transmission lines over or near power lines. You can be seriously
injured or killed if any part of the antenna, support or transmission line touches a power
line. Always follow this antenna safety rule: the distance to the nearest power line should
be at least twice the length of the longest antenna, transmission line or support dimension.

PAGE 3

GETTING TO KNOW YOUR SLS-2

Your SLS-2 is a quality, precision instrument that will give you many years of outstanding
service; take a few minutes to get to know it.

Front Panel

On the front panel there is one pushbutton and two LED indicator lights. The button is a
pushbutton toggle switch which selects between the two cables connected to the rear ports. The
LEDs indicate which port is selected.

PAGE 4

Rear Panel

The rear panel of the SLS-2 features three RJ45 jacks. One is a common jack, and the other two
are the switched jacks. The front panel pushbutton alternately connects either Port 1 or Port 2 to the
Common Port. The DC power jack accepts 12 volts DC at 100 mA, center positive.

PAGE 5