Quick-Start Guide
Serial RS-232 and TTL Interface (#2412S)
INSTEON power line interface with RS-232 serial and electronic TTL
communications for full-time software and hardware host applications.
Need Help? For assistance call your friendly
support person @ 800-SMARTHOME (800-762-7846)
Key Features
• No background software needed with computer programs
• Straightforward and simplified command set
• Simple to use RS-232 communications
• Direct TTL connection for hardware devices
• Stores over 417 INSTEON Links in 32Kb of non-volatile memory
• Uncontrolled feed-through AC outlet other electrical devices
• Able to supply unregulated 12VDC power (300 mA max) for a host device
Connector Specifications
Pin 1: RS232 to PC pin 2 (Rx)
Pin 2: Unregulated +12VDC output, maximum 300mA
Pin 3: TTL Output (from PLM)
Pin 6: TTL Input (from PLM)
Pin 7: Common ground
Pin 8: RS232 from PC pin 3 (Tx)
Pins 4&5: Not connected
Power Line Modem
plug-in Jack
Power-up Behavior
LED On Steady PLM detected an external EEPROM for storage of database links.
LED blinks six
PLM has not detected an external EEPROM and will use the internal EEPROM of the processor chip.
LED is Off
While being plugged in, the user pressed and held the SET button for 10 seconds causing the PLM to perform
a factory reset. At the conclusion of the reset, the PLM’s LED will operate like one of the two modes above.
The RS-232 Serial communications to the Power Line Modem (PLM) are:
19,200 baud
8 data bits
No parity
1 stop bit
For developers and programmers interested in learning more about the the PowerLinc, information on the PowerLinc Modem
Developer Kit can be found at: http://www.smarthome.com/insteon/sdk2600s.html
Note: each byte sent to the Power Line Modem will be echoed back to the host.
Quick-Start Guide
Serial and TTL Interface (#2412S)
Need Help? For assistance call your friendly
support person @ 800-SMARTHOME (800-762-7846)
Tips for Using Power Line Modem
• Do not plug Power Line Modem into a power strip or AC line filter.
• Some computers and their accessories can absorb Power Line Carrier (PLC) signals off the power lines.
Since Power Line Modem will be so close to the computer, the power strip for the computer should be
filtered. Use Smarthome’s FilterLincTM #1626 on the computer’s power strip to keep the Power Line
Modem’s signals from getting absorbed by the computer equipment.
• Don't plug other PLC transmitters into the same outlet as Power Line Modem. Every PLC transmitter will
absorb the other transmitter's PLC signals when they are not transmitting. In some cases, up to half the
signal can be lost due to nearby transmitters.
• If the computer's serial port is shared with another hardware device (scanner, PDA, etc.) be sure to turn off
that device's program on the PC. If left running, the home automation software will not be able to
communicate to the Power Line Modem.
#1626 FilterLinc TM
Plug-In Filter
• To reset the Power Line Modem to its original factory settings, unplug it from the wall outlet and wait 10 seconds. Press and hold
its SET button, plug it back in, continue holding the SET button for 3 seconds and release. After several seconds, the Status LED
will turn on, indicating a reset is complete.
SmartLabs Product Number
Operation Modes
Connector Type
INSTEON Addresses
INSTEON Device Category
INSTEON Device Sub-Category
INSTEON Powerline Frequency
Minimum Transmit Level
Minimum Receive Level
INSTEON Messages Repeated
X10 Powerline Frequency
X10 Messages Repeated
Operating Conditions
Supply Voltage
Surge Protection
Pass-through outlet
2412S – Power Line Modem Module
2 years
Sold Separately
INSTEON only, X10 only, INSTEON and X10 Combo Mode
RS-232 & TTL & 12VDC (unregulated) @ 300mA
1 hard-coded out of 16,777,216 possible
417 out of 16,777,216 possible
0x03 (Network Bridges)
131.65 KHz
3.2 Vpp into 5 Ohms
20 mVpp nominal
121 KHz
Indoors, 40 to 132°F, up to 85% relative humidity
3.9" H x 2.6" W x 1.5" D - 9.6 oz
120 Volts AC +/- 10%, 60 Hertz, single phase
MOV rated for 150 Volts
Un-controlled 3-prong (with ground) 120V, 15 amps
Safety tested for use in USA and Canada (ETL #3017581)
SmartLabs Limited Warranty
SmartLabs warrants to the original consumer of this product that, for a period of two years from the date of purchase, this product will be free from defects in material and workmanship and will
perform in substantial conformity to the description of the product in the owner's manual. This warranty shall not apply to defects or errors caused by misuse or neglect.
INSTEON and The INSTEON COMPATIBLE logo are trademarks of SmartLabs, Inc. U. S. Patnt No. 7,345,998 International patents pending © Copyright 2009 SmartLabs, 16542 Millikan Ave., Irvine, CA
1-800-SMARTHOME (800-762-7846) www.smartlabsinc.com
rev. 02-05-2009
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