LDG SLS-2 Operation Manual - page 3
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.
SLS-2 OPERATIONS MANUAL
MANUAL REV. A
PAGE 3