There are a couple of factors and a calculation that contribute to defining the number of devices paired and supported by the CCU.

The major factor that determines the number of devices paired and supported is the distance at which the device paired to the CCU, is installed.

**The Calculation:**

The above figure depicts a typical building floor environment. The scenarios that can crop from a building environment as above can be as follows.

**Scenario 1: **

The devices on the floor can be installed at a 100 feet radius from the CCU.

In such a case the CCU can support up to **48 devices (SmartNode & SmartStats) & 24 HyperStats / Splits.**

**Scenario 2: **

A few devices on the floor can be installed at a 100-feet radius from the CCU, and a few at a distance outside the 100-feet radius and within a 200-feet radius of the CCU.

In such a case another factor comes into the picture to help determine the number of devices that can be paired and supported.

When there are devices installed over and above the distance of 100 feet radius and within 200 Feet radius of the CCU, the number of hops that the device uses to communicate with the CCU influences the final count.

The table below talks about the same.

When devices paired over and above the distance of 100 feet radius from the CCU |
How is the final count for the number of devices paired and supported calculated? |

2 Hops over and above the distance of 100 feet radius from the CCU |
Where, X = Devices (SmartNodes/ SmartStats) within the distance of 100 feet radius from CCU / devices connected with a single hop.
Where, N= number of hops. (Should always be limited to 2 hops) Y = Devices (SmartNodes/ SmartStats) to be paired outside the distance of 100 feet radius and within 200 Feet radius of CCU / devices connected with 2 hops. |

**Example Calculation for SmartNode & SmartStat: **

Let us assume we have connected 24 SmartNodes & SmartStats within the distance of 100 feet radius from CCU and we need to determine how many more SmartNodes & SmartStats can be connected to a CCU outside the 100-feet radius and within 200 Feet radius of CCU.

Devices (SmartNodes/ SmartStats) to be paired outside the distance of 100 feet radius from CCU / devices connected with 2 hops.= **Y= (48-X)/N^2 **

Where,

X=24

N= 2

Y= (48-24)/2^2

Y= (24)/4

**Y=6**

Total number of SmartNodes and SmartStats paired and supported = X+Y

Total number of SmartNodes and SmartStats paired and supported =24+6

Total number of SmartNodes and SmartStats paired and supported = 30

**Example Calculation for HyperStat: **

Let us assume we have connected 12 HyperStasts within the distance of 100- feet radius from CCU and we need to determine how many more HyperStats can be connected to a CCU outside the 100-feet radius and within 200-feet radius of CCU.

Devices (Hyperstats) to be paired outside the distance of 100 feet radius and within 200 Feet radius of CCU with 2 hops.= **Y= (24-X)/N^2 **

Where,

X=12

N= 2

Y= (24-12)/2^2

Y= (12)/4

**Y=3**

Total number of HyperStats paired and supported = X+Y

Total number of HyperStats paired and supported =12+3

**Total number of HyperStats paired and supported = 15**

For more information on the same refer to the article: 900Mhz Mesh Range

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