Network Rack Types & PDU

Wall Mount Rack

Wall mount racks are compact enclosures designed to be mounted directly on a wall. Ideal for small networks, retail spaces, or areas with limited floor space. Available in sizes from 6U to 12U, they keep equipment secure and accessible.

Floor Standing Rack

Floor standing racks are freestanding cabinets that support heavier loads and larger configurations. Commonly used in data centers and server rooms, they come in various heights (up to 48U) and may include cooling fans, glass doors, and cable management.

Open Frame Rack

Open frame racks have no sides or doors, providing maximum airflow and easy access to equipment. They are cost‑effective and ideal for controlled environments where security and dust are not primary concerns. Often used for labs, network closets, or audio/video setups.

Enclosed Server Rack

Enclosed server racks feature locking doors and removable side panels, offering physical security, noise reduction, and improved airflow management. They are essential in environments where equipment must be protected from dust, tampering, or unauthorized access.

Rack Sizes: 6U to 48U

Rack height is measured in "U" (rack units), where 1U = 1.75 inches (44.45 mm). Choose the right size based on your equipment and space:

6U, 9U, 12U: Compact wall‑mount or small floor racks for network switches, patch panels, and small servers.
24U: Mid‑size floor racks suitable for growing IT needs.
42U, 48U: Full‑height racks (approx. 6.5 to 7 feet) for data centers and large server rooms.

Basic PDU

Basic PDUs (Power Distribution Units) are simple strips of outlets that distribute power to rack equipment. They provide no monitoring or control features, but are reliable and cost‑effective for environments where power management is not critical.

Metered PDU

Metered PDUs include a local digital display showing real‑time power draw. This helps prevent overloads by allowing technicians to see current usage at the rack. They are ideal for colocation and data centers where capacity planning is important.

Monitored PDU

Monitored PDUs provide remote power monitoring via network connection. They allow data center managers to track voltage, current, and power consumption from anywhere, enabling proactive capacity management and energy efficiency.

Switched PDU

Switched PDUs offer remote power control for individual outlets. You can turn outlets on/off, reboot locked‑up equipment, and set power‑up sequences. Essential for remote hands and managing distributed IT environments.

Intelligent PDU

Intelligent PDUs combine switching, monitoring, and environmental sensing (temperature, humidity, airflow). They integrate with DCIM software for advanced power management, energy optimization, and real‑time alerts.

Frequently Asked Questions

What is the difference between a metered and a monitored PDU?

Metered PDUs have a local display showing real‑time power draw but do not offer remote access. Monitored PDUs provide remote monitoring via network, allowing you to see power usage from anywhere.

Can I use a switched PDU to reboot servers remotely?

Yes, switched PDUs allow remote power cycling of individual outlets, perfect for rebooting locked‑up equipment without a physical visit.

What does 'Zero U' mean for vertical PDUs?

Zero U refers to PDUs that mount vertically without taking up horizontal rack space (they are mounted on the rear or side rails). They are ideal for maximizing equipment density.

How do I choose the right rack size for my server room?

Consider current equipment needs and future growth. A 42U or 48U rack is standard for data centers, while 24U works for mid‑size setups. Small wall‑mount racks (6U‑12U) are best for network closets or retail spaces.

How do I choose the right rack size for my server room?

Consider current equipment needs and future growth. A 42U or 48U rack is standard for data centers, while 24U works for mid‑size setups. Small wall‑mount racks (6U‑12U) are best for network closets or retail spaces.

How do I choose the right rack size for my server room?

Consider current equipment needs and future growth. A 42U or 48U rack is standard for data centers, while 24U works for mid‑size setups. Small wall‑mount racks (6U‑12U) are best for network closets or retail spaces.