4 LAN / NANO-ITX
PNM-5210
Four LAN ports, five COM and optional PoE on a 120 × 120 mm board. N150 or N305 at 15 W.
Industry / Energy and communication
Grid-edge computing for cabinets, feeders and renewables.
Energy boards for substation-adjacent gateways: 9–36 V, 4 LAN, CAN and low-power envelopes.
Board is a component. No substation certification is claimed; those tests apply to the finished device.
Substation EMC type tests
L4
10–20 V/m
radiated immunity
L3
4/2 kV
surge
L2
4 kV
EFT
L1
8/15 kV
ESD
The cabinet environment / sourced
The device is tested, not the board.
8/15 kV
ESD in type tests.
−40/+85 °C
A climate extreme in type tests.
55 °C
93–95% RH Temperature and humidity in the same tests.
93–95% RH Temperature and humidity in the same tests.
125 V DC
A redundant supply used by substation computers.
Values from the substation EMC standard and IEEE 1613 type tests. Board ratings are narrower and come from the model cards.
Requirement to answer
Separate the device test from the board.
The board sits inside the cabinet; the device carries the substation claims.
- EMC 8/15 kV ESD, 4 kV EFT, 4/2 kV surge and 10–20 V/m are device-level type tests. Board documents are supplied on request.
- Climate The boards are rated −20 °C to +60 °C. A cabinet that sees −40 °C or +85 °C needs its own thermal design.
- Power All three picks take 9–36 V DC. Redundant 125 V DC stays at the cabinet level, behind a DC/DC converter.
- Ports Four LAN on PNM-5210; CAN on the 3.5-inch picks; two LAN on each.
Recommended configurations / three models
Ports first, then the rail.
Count the LAN and serial ports, then pick the enclosure and DC range.
Spec to model
What each requirement becomes.
| Requirement | Matching value | Model | What is not claimed |
|---|---|---|---|
| Four LAN ports | 3 × i226-V + 1 × RTL8156B | PNM-5210 | PoE unless ordered |
| CAN bus | 2 × CAN headers | RP7003AW | Protocol stack or isolation |
| Cellular backhaul | M.2 B-Key + SIM | RP7003AW, UT1003AW | Carrier approval |
| Wide DC input | DC 9–36 V | All three | 125 V DC direct input |
| Serial ports | 5 COM on PNM-5210; 6 COM on the 3.5-inch picks | All three | Isolated serial unless specified |
| Substation EMC | Device-level type test | Finished equipment | Board-level the substation EMC standard |
Values from the model cards. The last column is the boundary.
System boundary
The cabinet carries the certification.
The board leaves Piesia with board-level documents. The enclosure, DC/DC converter and network interface belong to the integrator, who type-tests the finished device.
That is why a 125 V DC cabinet and a 9–36 V board can coexist: the converter is part of the equipment, not the board.
Configuration example / feeder gateway
A gateway that stays inside its cabinet.
A feeder gateway collects Modbus and the substation protocol data, then forwards it over cellular. The cabinet supplies 125 V DC; the board sees 12 V.
4/2 kV
surge level in the device test
- Board: PNM-5210 with four LAN and optional PoE.
- Second node: RP7003AW for CAN and serial.
- Power: cabinet DC/DC to 12 V; no 125 V DC at the board.
A configuration example, not a named customer or a tested installation.
Before the inquiry
Certification and power, answered.
Do the boards carry the substation EMC standard?
No. the substation EMC standard and IEEE 1613 type tests apply to the finished substation device. Board-level documents are available on request per model, and the integrator certifies the equipment.
Can the board take 125 V DC directly?
No. The recommended boards take 9–36 V DC. A substation cabinet that uses redundant 125 V DC needs a DC/DC converter ahead of the board.
Which model should I shortlist for four LAN ports?
PNM-5210 carries four LAN ports: three Intel i226-V and one RTL8156B, with optional PoE 48 V/15 W.
Which model carries CAN?
RP7003AW and UT1003AW each carry CAN headers. RP7003AW has two CAN headers; UT1003AW has one CAN port.
Inquiry / Energy and communication
Send the port count and the cabinet supply.
PNM-5210, RP7003AW or UT1003AW, quote within 24–48 h.
No substation certification is claimed. Those tests apply to the finished substation device.
Illustrative scene