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Gateways that keep talking when the cabinet gets hot
In public-power and grid-tied setups, the board is not the switchgear — it is the data processing and communication layer: protocol gateways, telemetry nodes, cabinet controllers. These three boards carry the interfaces that work demands — dual LAN, PoE, wide DC input and −20/+60°C operation.
DUAL 2.5G LAN · PoE PSE · DC 9–36V · AMT · −20/+60°C
In The Cabinet
Four things a utility cabinet asks for
- Communication density: the PDM-5110 quotes two Intel i226-V 2.5G ports plus a PoE PSE header — multiple segments and powered devices from one gateway.
- Data processing at the node: Alder Lake-N and Twin Lake-N CPUs with onboard LPDDR5 up to 16GB on the PDM-5110 and AD742A run protocol conversion and telemetry close to the field.
- Wide, sagging power: DC 9–36V on the TL500Z3AW rides substation and cabinet rails that sag under load; the PDM-5110 takes DC 12–24V.
- Remote service: AMT on the TL500Z3AW management port plus a 0–255 s watchdog — out-of-band power control for cabinets nobody visits.
Recommended Models
Three gateways for the comm layer
Fields quoted from the model pages. These boards do data processing and communication inside public-power and grid-tied setups — no utility certification is claimed.
PDM-5110
Alder / Twin Lake-N · N97–i3-N305
2× i226-V 2.5G, PoE PSE header, DC 12–24V 60W, LPDDR5 16GB.
Why: dual 2.5G plus a PoE PSE header suit gateway duty in public-power data and communication roles.
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AD742A
Alder Lake-N · N100–N150
i226-V 2.5G with PoE option, DC 12V 60W, 2× COM RS232/422/485.
Why: low-power 60W node with optional PoE — sized for compact communication cabinets.
View →
TL500Z3AW
Tiger Lake-U · 6305U–i7-1165G7
DC 9–36V 90W, 2.5G + AMT, six COM mixed RS485, watchdog.
Why: 9–36V input and AMT keep cabinet gateways talking through sagging rails.
View →Communication-Node Checklist
Match the cabinet, then the gateway
Typical requirements for the data processing and communication layer against the datasheet fields of the three recommended models.
| Cabinet Requirement | Datasheet Field | On Board |
|---|---|---|
| Cabinet heat | −20/+60°C operating | PDM-5110 · AD742A · TL500Z3AW |
| Segment links | 2× Intel i226-V 2.5G | PDM-5110 |
| Powered devices | PoE PSE header | PDM-5110 (AD742A: PoE optional) |
| Node compute | Alder/Twin Lake-N, LPDDR5 16GB | PDM-5110 · AD742A |
| Hard-wired rails | DC 9–36V | TL500Z3AW (PDM-5110: DC 12–24V; AD742A: DC 12V) |
| Remote management | AMT + watchdog 0–255 s | TL500Z3AW |
Questions
Energy & communication, answered
They handle the data processing and communication layer in public-power and grid-tied setups — protocol conversion, gateway routing and telemetry. They are not power-conversion hardware, and no utility certification is claimed on this page.
All three models quote −20 to +60°C operating temperature — cabinet air that runs warm in summer stays within the stated range without derating.
The PDM-5110 quotes a PoE PSE header and the AD742A lists PoE as optional — both per the published datasheet fields.
Get A Quote
Heat, sagging rails and no one to call — that is the cabinet.
Send the bus voltage, segment count and cabinet temperature — we’ll confirm the gateway board within 24–48 hours.
