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SAMSUNG RRH (Remote Radio Head) SMM-BMR004

SAMSUNG RRH (Remote Radio Head) SMM-BMR004

Regular price $1,500.00 USD
Regular price Sale price $1,500.00 USD
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Samsung RRH (Remote Radio Head) SMM-BMR004, which is a crucial piece of equipment used in cellular telecommunications infrastructure.

Here's a detailed description based on the images:

Physical Appearance:

  • Enclosure: The unit is housed in a robust, rectangular, light gray or silver-colored metal enclosure. This sturdy construction is typical for outdoor-mounted telecommunications equipment, designed to withstand various environmental conditions.

  • Heat Dissipation: A dominant feature is the extensive array of horizontal aluminum fins covering a large surface area (visible in the second image and on the top of the unit in the first image). These are heatsinks, crucial for dissipating the significant heat generated by the RF power amplifiers inside the unit. This passive cooling design suggests it's intended for continuous, high-power operation.

  • Connectivity Ports (visible in the first image):

    • Antenna Ports: There are four prominent circular connectors labeled "ANT 0", "ANT 1", "ANT 2", and "ANT 3". These are likely N-type or 4.3-10 type connectors, used for connecting to external antennas. The large black knobs securing these connections indicate a rugged, weatherproof design.

    • Power Input: A circular connector labeled "POWER (-48V)" is present, indicating that the unit is powered by a -48V DC supply, which is standard in telecommunications. There's also a smaller "RET" (Remote Electrical Tilt) port, usually for controlling antenna tilt.

    • Optical Port: On the bottom right side of the unit (in the first image), a black, robust connector labeled "OPTIC" is visible. This is where the fiber optic cable connects, carrying digital signals to and from the baseband unit.

    • Grounding: There are visible grounding points (e.g., screw terminals) on the top surface, essential for electrical safety and surge protection.

  • Mounting: The overall shape and the presence of mounting points (visible as screw holes around the edges) suggest it's designed to be securely mounted vertically, often on a pole or tower.

  • Packaging: One image shows the unit snugly packaged in white foam inserts within a cardboard box, indicating careful protection during shipping. A pink protective material (possibly bubble wrap or a bag) is also visible, likely covering part of the unit.

Functionality (Inferred from type):

As a Remote Radio Head, this Samsung SMM-BMR004 (RRH-P4) is responsible for converting digital baseband signals into analog radio frequency (RF) signals for transmission over the air, and vice versa. It typically contains digital-to-analog and analog-to-digital converters, power amplifiers, filters, and transceivers. By placing the RRH close to the antennas, signal loss over long coaxial cables is minimized, improving network performance and energy efficiency. This specific model operates in the PCS band.

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