# Questions Regarding the Camera M0161 Design

Source: https://forum.modalai.com/topic/5540/questions-regarding-the-camera-m0161-design
Category: VOXL 2 and VOXL 2 Mini (https://forum.modalai.com/category/26/voxl-2-and-voxl-2-mini)
Posted: 2026-11-04 22:51:28 UTC by pxiao
Replies: 0 · Views: 4

## pxiao · 2026-11-04 22:51:28 UTC

**Hardware:** 
Camera M0161 and cable MCBL-00084
**What I am trying to do:**
Camera M0161 PCB Design
**What actually happens:** 
The datasheet is incomplete, and we have some questions that need clarification and confirmation:
１：I couldn't find a detailed datasheet for the camera cable MCBL-00084, so I'm not sure about the pin-to-pin mapping between the two ends of the cable. Also, does this cable have a 100 Ω differential impedance and 50 Ω single-ended impedance?

２：I am using Hirose DF56C-26S-0.3V(51) 26-pin micro-coax receptacle to connect with camera and cable. however I'm not sure about the signal pin order.Is that correct? Signals are listed in J2 on M0155 https://docs.modalai.com/M0155/
![5840eb4d-e1ea-48df-a729-15c0787ad121-image.jpeg](https://forum.modalai.com/assets/uploads/files/1793832440395-5840eb4d-e1ea-48df-a729-15c0787ad121-image.jpeg) 

3:what is the purpose of pin 25 on the M0161, labeled "3.8V Primary 'Phone' Power (mimics nominal 1S)"? 
Can I use 3.3v to this pin, or can I leave it unconnected?