Communication protocols

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Communication protocols

What are communication protocols ?

A communication protocol is a system of rules that allow 2 or more entities of a communications system to transmit information via any kind of variation of a physical quantity. You could compare it to a language like english, chinese, or spanish.

In today's connected world, it is used to communicate mostly between devices and controllers. Every single communication protocol has its advantages if compared to others.

The challenge is to be able to communicate between all different types of devices you need for your environment. Protocols are evolving for your security, and for your comfort.

Communication protocols comparison

Common communication protocols for buildings.

Wi-Fi

Wi-Fi

  • Leader on the market
  • Max range; 5 km ( IEEE 802.11a )
  • Up to 600 Mbps ( IEEE 802.11n )
  • Band; 2.4 Ghz & 5 Ghz
  • Topology; Star, tree, P2P and mesh ( IEEE 802.11s )
  • Up to 250 devices
  • Medium power usage
  • Low cost
  • Application; PC based data acquisition
Z-Wave Alliance

Z-Wave

  • Proprietary
  • Generic controls
  • Max range; 100 m
  • Up to 100 kbps
  • Band; 900 Mhz & 2.4 Ghz
  • Topology; Star & mesh
  • Up to 232 devices
  • Low power usage
  • Medium cost
  • Application; wireless sensors
ZigBee

Zigbee

  • Max range; 100 m
  • Up to 500 kbps
  • Band; 2.4 Ghz
  • Topology; Star & mesh
  • Up to 240 devices
  • Low power usage
  • Medium cost
  • Application; wireless sensors
LoRa Alliance

LoRa

  • Max range; 7 km
  • Up to 50 kbps
  • Band; subGhz
  • Topology; Star
  • Up to 1000 devices
  • Low power usage
  • Medium cost
  • Application; wireless sensors
Bluetooth

Bluetooth

  • Second leader on the mobile market
  • Max range; 100 m
  • Up to 50 kbps
  • Band; subGhz
  • Topology; P2P & star
  • Low power usage
  • Low cost
  • Application; wireless sensors
BACnet

BACnet

  • Max range; 1.2 km
  • Up to 1000 mbps
  • Topology; Single ended, P2P, tree, star and mesh
  • Up to 127 devices
  • Low cost
  • Application; wired & wireless sensors
IP

IP

  • Max range; 100 m
  • Up to 1000 mbps
  • Topology; Single ended, P2P, tree, star and mesh
  • Up to 250 devices
  • Low cost
  • Application; wired & wireless sensors
RS485

RS485 / Modbus

  • Max range; 1.2 km at 100 kbps
  • Up to 10 mbps
  • Topology; Multi-drop
  • Up to 32 devices
  • Low cost
  • Application; wired sensors
RS232

RS232

  • Max range; 15 m at 19.2 kbps
  • Up to 1 mbps
  • Topology; Single ended
  • Up to 1 device
  • Low cost
  • Application; wired sensors
433 Mhz

433 Mhz RF

  • Max range; 1000 m
  • Up to 115.2 kbps
  • Topology; Single ended, P2P, & star
  • Unlimited devices
  • Low cost
  • Application; wireless sensors
Analog

Analog

  • Max range; 200 m
  • Instantaneous
  • Topology; Single ended, star & P2P
  • Unlimited devices
  • Low cost
  • Application; wired sensors
Communication protocols selection

Communication protocol selection

Are you planing to smart up your environment? Are you lost with all of the thousands of devices options? Do you need a professional to advise you?

When it is time to chose the right communication protocol for your property, 911micro offers consulting, solutions, and installation. Select the best fit.