Description
23-pin double-row core board reference platform
This page documents the 23-pin, two-row core-board PCB described in the local DD-29 and DD-32 technical reference. The board outline is 44.45 x 31.75 mm. It is a separate form factor from a bare LGA module, USB Dongle, M.2 card, Mini PCIe card, or single-row board.
The reference image shows one locally recorded, identifier-redacted example populated with EC25JFA-512-STD. The same technical-reference matrix also names EC200UCNAA-N05-SGNSA among many supported installed-module configurations. These are documented board examples, not an assertion that every listed module, regional suffix, board revision, accessory set, or current stock configuration is interchangeable.
Documented PCB interfaces and limits
| Board outline | 44.45 x 31.75 mm technical-reference outline; 12 pins on the left and 11 pins on the right, for 23 pins total. |
|---|---|
| Host and SIM signals | The referenced pin map includes external-SIM signals, TTL-level TXD/RXD, RTS/CTS, DTR/RI, reset, enable, NET, VBAT and VEXT. Match the host logic and the exact installed module before integration. |
| Power boundary | The seven-page DD-29 and DD-32 reference states 5-18 V VIN for this illustrated revision, plus a separate VBAT connection. Confirm the matched schematic and PCB revision before powering a supplied board; do not transfer this range to a different dual-row revision. |
| RF and module scope | RF connector count, antenna capability, network bands, GNSS, firmware, certification and regional support remain properties of the exact populated module and board revision, not of this generic PCB reference. |
Compatibility evidence
Page 1 of the DD-29 and DD-32 technical reference lists individual EC200, EC21, EC25, EG21 and EG25 configurations. Page 2 supplies the 23-pin arrangement and dimensions. The page uses that matrix only as a PCB-level compatibility reference. For an enquiry, provide the complete installed-module P/N, board revision, destination network, host interface, SIM arrangement and antenna requirement.
Download the DD-29 and DD-32 23-pin double-row core board technical reference (PDF).
Request a quote with the complete module P/N, required PCB revision, quantity and integration requirements.





