What to include in a network refresh BOM

A network refresh bill of materials (BOM) should include hardware, licenses, support, link components, power, rack accessories, and cabling. For each item, specify the manufacturer part number, quantity, compatibility requirements, and delivery phase. A complete list helps buyers compare proposals and avoid missing components at installation.

Start with the deployment requirements

Record site count, endpoint count, expected traffic, resilience requirements, and existing equipment that will remain. Identify who approves the technical design. A sourcing quote prices a list; compatibility and design assumptions still need validation against manufacturer documentation.

• Switches: access-port count and speed, uplink types, stacking parts, PoE standards, and total power needed by connected devices.
• Firewalls and routers: throughput with the intended inspection or VPN features enabled, interface requirements, and high-availability configuration.
• Wireless: AP models, power requirements, controller or cloud dependencies, and license quantities and terms. AP counts alone do not establish coverage; use a design or survey.
• Licensing and support: feature tier, device entitlements, subscription duration, renewal requirements, and coverage for each platform.

Check every network link at both ends

An optical link typically needs a compatible transceiver at each end plus suitable fiber cabling. A direct attach copper cable (DAC) is an assembly with connectors at both ends. Do not count one complete DAC connection as two cable assemblies.

• For optics, verify supported transceiver SKUs, form factor, speed, wavelength, reach, fiber type, and connectors at both devices.
• For DACs or active optical cable assemblies, verify length and compatibility with both endpoint models.
• Check breakout support and cable configuration where one port connects to multiple ports.
• Include patch panels, patch leads, redundant links, and spares where the design requires them.

For Cisco equipment, use the Cisco Optics-to-Device Compatibility Matrix to check the device, transceiver, and software combination. Cisco's SFP+ module data sheet distinguishes optical modules from direct-attach cable assemblies. Use the equivalent official compatibility documentation for other manufacturers.

Include power and installation accessories

• Power supplies: specify redundancy and verify the selected configuration supplies the required PoE budget.
• Cords and PDUs: match plugs, receptacles, voltage, current rating, and available circuits. Check C13/C14 and C19/C20 connections rather than assuming one cord fits every device.
• Rack fit: check rack depth, rails or mounting kits, dimensions, airflow, and cable clearance.
• Continuity: list UPS requirements and any temporary equipment needed during migration.

A BOM format you can copy into a spreadsheet

Use these column headings. Keep licenses and support on separate rows when they have separate ordering SKUs.

Site / phase | Manufacturer | Part number | Description | Quantity
Condition | Compatibility notes | License / support term
Needed-by date | Alternatives allowed | Questions to verify

Illustrative row: Site A / phase 1 | [manufacturer] | [switch SKU] | 48-port access switch | 2 | New | [uplink and PoE requirements] | [term] | [date] | Only with approval | Confirm stacking parts.

For two switches joined by one optical link, record the required transceiver at each end and the selected fiber connection. For a DAC link, record the selected cable assembly. Calculate quantities from the actual link plan, including redundancy and spares.

Final checks before requesting prices

1. Match SKUs to the intended region, configuration, and manufacturer compatibility list.
2. Check package contents before ordering accessories twice.
3. Separate essential deployment items from optional spares and upgrades.
4. Flag uncertain lines instead of choosing guessed SKUs.
5. Identify delivery phases and substitutions that require technical approval.

Attach the list to a Precision Tech Supply quote request. Our hardware quote guide covers purchasing details; the sourcing guide explains how to evaluate lead times and alternatives.

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