# 1. About N15

### 1.1. Main feature

* <mark style="color:blue;">**Usage scenarios:**</mark> point-to-point, point-to-multipoint medium and long-distance communication, power and water pattern inspection, fire emergency and security communication, etc.&#x20;
* <mark style="color:blue;">**Communication method:**</mark> LTE-TDD. Spread spectrum method: Frequency hopping (OFDM), automatic frequency hopping within the working frequency band to avoid interference.&#x20;
* <mark style="color:blue;">**Reliability:**</mark> Data transmission can use AES encryption, as well as SNOW encryption and ZUC encryption.&#x20;
* <mark style="color:blue;">**Maximum nodes:**</mark> Each group can have 16 nodes on the network at the same time.

### 1.2. Parameter

<figure><img src="https://1851866520-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIWx9bMxy88NRLPUcOemU%2Fuploads%2FppNdLTmHTmvj7ntIEsTZ%2Fimage.png?alt=media&#x26;token=df308a2a-1ee8-46d4-acf1-8bcdb958ffb7" alt=""><figcaption></figcaption></figure>

### 1.3. Size & weight

Unit:mm / Weight:132g

<figure><img src="https://1851866520-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIWx9bMxy88NRLPUcOemU%2Fuploads%2FhCwXnhq1HxHUr8ht70yI%2Fimage.png?alt=media&#x26;token=88e0e446-81c2-46b6-bbd0-06c57e22622d" alt=""><figcaption></figcaption></figure>