JNX30-LC TECHNICAL REFERENCE MANUAL
VERSION: 1.2
Page 10 of 28
DEC 2021
SECTION 5
Pinout description
Please note that the software GPIO number differs from the socket pin number. This software GPIO
number must be computed with a special formula and differs between the various compute
modules. Please see appendix B for details.
5.1
J1 - Power input jack
Nexus
Pin
Description
Note
1
12V
12V nominal (absolute max. 20V)
recommend power supply 12V 36W (or higher)
Reverse voltage protection
over voltage protection (SMA6J18CA) with max 20V peak
2
GND
5.2
J3 - Ethernet (GbE)
Standard RJ45 pinout with PoE capable magnetics class 3 and 4 (PD or PSE). Connected to the
Ethernet controller on the compute module. PoE-PD and PoE-PSE are supported with the
corresponding variants of the JNX30. Also, there is the new JNX30 PDiso (38481) with isolated PoE-
PD.
5.3
J4 - M.2 PCIEx4 NVME SSDs
Please note that only NVME SSDs are supported. SATA SSDs are not supported. We recommend the
128GB Transcend SSDs (TS128GMTE110S). This SSD is standard in some of the Auvidea dev kit
offerings.