| RFC | Radio frequency channel |
| SCC | Serial communication channel |
| ETH | Ethernet channel |
| CDMA | Carrier detect multiple access – controlled access to RFC |
| CRC16 | Cyclic redundancy check – applied to packet header |
| CRC32 | Cyclic redundancy check – applied to packet data |
| PoE | Power over Ethernet – supply via the Ethernet cable |
| AUX | Auxiliary – supply via RS232 DSUB9 connector |
| TX | Transmitting to RFC |
| RX | Receiving from RFC |
| tx | Transmitting to SCC |
| rx | Receiving from SCC |
| NoR | Number of repeaters – parameter in the configuration menu |
| MTU | Maximum transmission unit – max. length of transmitted packet |
