The Qbox-aes is composed of two sections,the Send section and the Receive/Monitor section. A Test Mode switch selects Analog or AES testing operation. In AES test mode the Receive section consists of the LED sample rate indicators and the decoder that converts the digital signal into analog for the Speaker and the Line/Phones monitor.
The Send/Receive test operates as described above and the Inline Monitor position allows the Qbox-aes to be inserted inline in an AES stream for real time monitoring.