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  • PCS PulseWorx LM1 (PCLM14) — UPB Plug-In Lamp Module Manual

    September 08, 2026 4 min read

    Installation Guide and Owner's Manual for the PCS PulseWorx LM1 Lamp Module — a plug-in UPB load controller for dimming/switching 120VAC lamps.

    Full text manual (for reference)

    Full Installation Guide and Owner's Manual for the PulseWorx LM1 Lamp Module — a plug-in UPB (Universal Powerline Bus) load controller for controlling 120VAC incandescent lamps via powerline commands, with dimming, scene, and auto-off timer functionality.

    Function

    The LM1 Lamp Module is a high-quality plug-in home automation load controller that controls 120VAC incandescent lamps based on digital commands received over the power wiring from a remote UPB controller. The module turns lamps ON and OFF and also acts as a light dimmer. UPB controllers and modules can be located anywhere in the home — no additional wiring is required and no radio frequency signals are used for communication.

    Important Safety Instructions

    • Read and follow all safety instructions.
    • Keep away from water. If the product contacts water or other liquid, turn off the circuit breaker and unplug the product immediately.
    • Never use products that have been dropped or damaged.
    • Do not use this product outdoors.
    • Do not use this product for other than its intended purpose.
    • Do not connect multiple lamps that, when combined, exceed the maximum load rating of the product.
    • To avoid fire, burns, personal injury, or electric shock, install out of the reach of small children.
    • Do not cover this product with any material when in use.
    • This product uses grounded plugs and sockets to reduce the risk of electric shock — they fit only one way. If they don't fit, consult an electrician.
    • Save these instructions.

    Installation

    The Lamp Module is designed for indoor use with devices that plug into a grounded power outlet.

    1. Locate the lamp to be controlled and unplug it from the wall outlet.
    2. Plug the lamp into the socket on the bottom of the lamp module. The lamp current rating (or combined rating of multiple connected lamps) must not exceed 400 watts.
    3. Plug the LM1 into the wall outlet.
    4. Turn the lamp power switch to its ON position.

    If desired, another device can be plugged into the pass-thru outlet socket on the front of the lamp module, which is always powered.

    Caution: Do not insert metal objects into the module while it is connected to power.

    Configuration

    Once your LM1 is installed it can be configured either manually or with the UPStart Setup Software. Manual configuration can be used to add your LM1 device into a UPB network, link it to controller buttons, and change preset light levels — refer to the Keypad Controller's Manual Configuration Guide on the PulseWorx website (www.PulseWorx.com) for details.

    Although the factory default operation of the LM1 is useful in many situations, PCS recommends configuring the device with the UPStart Setup Software to take advantage of its many configurable features. PCS has developed a Powerline Interface Module (PIM) and free UPStart software to configure all PulseWorx Lighting System devices; User's Guides are available on www.PulseWorx.com.

    Note: The LM1 can be configured to disable the dimmer so it can turn ON and OFF non-dimmable loads such as fluorescent lights.

    Setup Mode

    When configuring a UPB system, place the LM1 in SETUP mode by pressing the Program Button five times rapidly using a non-metallic toothpick. The Status LED continuously blinks blue when the device is in SETUP mode. To exit, press the Program Button once, or wait five minutes for it to time out.

    Operation

    The Lamp Module operates according to commands sent by UPB controllers. The LM1 can accept powerline commands from any UPB-compatible transmitter such as PulseWorx Keypad Controllers, Timed Event Controllers, Wall Switches, Interface Modules, Approved Third-Party Controllers, and touch screens. The LM1 can be a member of up to 16 scenes, with the capability to store a pre-set light level (0%–100%, or blink) and fade/blink rate for each scene.

    Lamp Switch Triggers

    The LM1 senses when the local lamp switch has gone from opened to closed and can automatically turn on the lamp when this occurs.

    AUTO-OFF Timer

    New for Generation 2 is the ability to set a maximum on time. If you forget to shut the lamp off yourself, the lamp module will do it for you automatically. The LM1 can be configured to inform the rest of the network when it has automatically turned the lamp off, allowing it to remotely control other devices or update feedback indicators such as LEDs.

    TEST Mode

    A manual test feature allows the device to be turned ON and OFF locally. To enable TEST mode, press and hold the Program Button on the LM1 for three seconds — the Status LED blinks magenta to indicate TEST mode. The lamp can then be turned ON and OFF by pressing the Program Button. Press and hold the Program Button again for three seconds to exit TEST mode.

    Factory Default Settings

    To restore factory defaults, place the LM1 into SETUP mode and then press the Program Button ten times rapidly. The Status LED blinks red to indicate that factory defaults have been restored. Press the Program Button twice more to stop the blinking.

    Setting Default
    Network ID 255
    Unit ID 09
    Network Password 1234
    Receive Components Link #1 = 100% @ 1.6 secs; Link #2 = 0% @ 1.6 secs; Link #8 = Blink @ 0.5 secs

    Typical Uses

    The LM1 is perfect for controlling 120VAC dimming loads such as:

    • Incandescent bulbs
    • Some dimmable compact fluorescent bulbs
    • 120VAC magnetic transformers
    • Fluorescent lights (when dimming is disabled)

    Limited Warranty

    Seller warrants this product, if used in accordance with all applicable instructions, to be free from original defects in materials and workmanship for a period of five years from the date of purchase. Refer to the warranty information on the PulseWorx website (www.PulseWorx.com) for exact details.