Packet Size by Product
This article is designed to help you determine the maximum data packet size you can send in an RF transmission. UART buffer sizes are also included.
| Radio | Maximum RF packet | UART Buffer | RF Buffer | Max. Fragmentation packet |
|---|
| XBee 802.15.4 (S1) | 100 bytes | 255 bytes | up to 2 indirect packets | n/a |
| XBee 802.15.4 (S2C) | 100 bytes | | up to 5 indirect packets | n/a |
| XBee ZB (S2, S2B) | 84 bytes | | up to four indirect packets | up to 255 bytes |
| XBee ZB (S2C) | 84 bytes | TX buffer 153
RX buffer 140 | up to four indirect packets | up to 255 bytes |
| XBee Digi Mesh 2.4 (S1) | 84 bytes | | | |
| XBee Digi Mesh 900 | 256 bytes | | | |
| XBee Digi Mesh 900 HP (S3B) | 256 bytes | | | |
| XBee Digi Mesh 868 LP | 256 bytes | | | |
| XBee PRO SX | 256 bytes | * | | |
* Note: This product is firmware dependent on what the size is. As such it is recommended that you use the NP command and add in the API headers bytes to determine the maximum buffer size.
Last updated: Aug 23, 2017