===== GRNbms MK3 Mini – Wiring & Pinout =====

This page provides an overview of the wiring and pinout for the **GRNcmu 18s**. Please refer to the respective Wiki pages for detailed information about [[:mk3:canbus|CAN]] communication.

==== Power Supply ====

  * **Recommended input voltage:**  11 – 14 V DC
  * Power should be supplied via the designated power outputs of the GRNbms.

==== GRNcmu Connection ====

{{:mk3:cmu18spinout.png?nolink&600}}

^Connector 1^ |
|1|GND Temp Sensor|
|2|GND Temp Sensor|
|3|Temp Sensor 3|
|4|Cell 17|
|5|Cell 15|
|6|Cell 13|
|7|Cell 11|
|8|Cell 9|
|9|Cell 7|
|10|Cell 5|
|11|Cell 3|
|12|Cell 1|
|13|Temp Sensor 2|
|14|Temp Sensor 1|
|15|Cell 18|
|16|Cell 16|
|17|Cell 14|
|18|Cell 12|
|19|Cell 10|
|20|Cell 8|
|21|Cell 6|
|22|Cell 4|
|23|Cell 2|
|24|Cell 0|

^Connector 2 + 3^ |
|1|12V Supply|
|2|CAN-High|
|3|Rail Positiv|
|4|NOT CONNECT!|
|5|GND|
|6|CAN-Low|
|7|Rail Negativ|
|8|NOT CONNECT!|

The positive and negative rails must each be connected to EVERY CMU in the system.

Connectors 2 and 3 are internally connected and can therefore be used for day chaining.