Mainboard
AssemblyThe single PCB carrying the two-port Ethernet switch/PHY, the media-converter controller, the management MCU, and the on-board regulation. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Mainboard parts and their functions
7 top-level parts · 227 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Bare PCB | 1× | 4-layer mainboard PCB |
| 2 | Switch / PHY IC | 1× | Two-port switch/PHY IC |
| 3 | Media-Converter Controller | 1× | Media-converter controller |
| 4 | Microcontroller | 1× | Management / DIP-config MCU |
| 5 | Reference Crystal | 1× | 25 MHz reference crystal |
| 6 | DC-DC Regulator | 2× | 3.3 V / 1.0 V buck regulators |
| 7 | SMD Passive (R/C/L) | 220× | Decoupling, bias, and termination |
3D model
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Build & assembly graph
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Bill of materials for Mainboard
7 top-level lines · 7 rows shown · 227 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Bare PCB | pcb-bare | 1× | 1 | · | part |
| 2 | Switch / PHY IC | fiber-media-converter-switch-ic | 1× | 1 | · | part |
| 3 | Media-Converter Controller | fiber-media-converter-controller | 1× | 1 | · | part |
| 4 | Microcontroller | mcu | 1× | 1 | · | part |
| 5 | Reference Crystal | fiber-media-converter-oscillator | 1× | 1 | · | part |
| 6 | DC-DC Regulator | fiber-media-converter-regulator | 2× | 2 | · | part |
| 7 | SMD Passive (R/C/L) | smd-passives | 220× | 220 | · | part |
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Where the mainboard is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$200. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
|
🇨🇳JLCPCB
jlcpcb.com ↗
|
Shenzhen, CN | PCB fabrication | 100 pcs | 2–4 wks |
|
🇨🇳PCBWay
pcbway.com ↗
|
Shenzhen, CN | PCB fab & assembly | 100 pcs | 2–4 wks |
| scc.com.cn ↗ | Shenzhen, CN | PCB manufacturer | 100 pcs | 2–4 wks |
| shogini.com ↗ | Mumbai, IN | PCB manufacturer | 100 pcs | 2–4 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 100 pcs | 2–4 wks |