Network Service / Function
Description / Protocols Used
LAN A
LAN B
AUX LAN
Q-SYS Device Discovery
Automatic discovery of Q-SYS Cores on a network by Q-SYS software applications, such as Q-SYS Designer.
Protocols
Q-SYS Discovery Protocol (QDP): Multicast UDP 224.0.23.175 on Ports 2467-2470 and Unicast on Port 6504
Q-SYS Designer Communications - Legacy
Legacy HTTP communication between Q-SYS Designer and the Q-SYS Core.
Protocols
- Hypertext Transfer Protocol (HTTP): TCP Port 80
- Q-SYS Control Binary (QCB): TCP Port 1700
Q-SYS Designer Communications - Secure
Secure connection, design file load, and control communications with a Q-SYS Core when using Q-SYS Designer software version 7.1 or higher.
Protocols
Hypertext Transfer Protocol Secure (HTTPS): TCP Port 443
Q-SYS Audio Enabled Peripherals
Q-SYS peripheral device audio streaming.
Protocols
- Q-SYS Discovery Protocol (QDP): Multicast UDP 224.0.23.175 on Ports 2467-2470 and Unicast on Port 6504
- IEEE-1588 (2008) Precision Time Protocol (PTPv2): Multicast UDP 224.0.1.129 Ports 319 - 320
- Trivial File Transfer Protocol (TFTP): Unicast UDP Port 69
Q-SYS Control Peripherals
Control of Q-SYS TSC touchscreen devices by the Q-SYS Core.
Protocols
- Q-SYS Control Binary (QCB): TCP Port 1700
- Q-SYS Discovery Protocol (QDP): Multicast UDP 224.0.23.175 on Ports 2467-2470 and Unicast on Port 6504
- Hypertext Transfer Protocol (HTTP): TCP Port 80
Q-SYS TSC-3
Initial configuration and control communications between the Q-SYS Core and any TSC-3 touchscreen.
Protocols
- Q-SYS Control Binary (QCB): TCP Port 1700
- Q-SYS Discovery Protocol (QDP): Multicast UDP 224.0.23.175 on Ports 2467-2470 and Unicast on Port 6504
- Hypertext Transfer Protocol (HTTP): TCP Port 80
- File Transfer Protocol (FTP): TCP Port 2121
Q-SYS UCI Viewers - Windows and iOS
Communication between Q-SYS UCI Viewers and the Q-SYS Core.
Protocols
- Q-SYS Control Binary (QCB): TCP Port 1700
- Hypertext Transfer Protocol (HTTP): TCP Port 80
Q-SYS Cameras
Communication between Q-SYS networked cameras and the Q-SYS Core.
Protocols
Web Services Discovery: Multicast UDP 239.255.255.250 on Port 3702
Q-SYS External Control Protocol - ASCII
Control of the Q-SYS Core from a 3rd party control system using the ASCII-based Q-SYS External Control Protocol.
Protocols
TCP Port 1702
Q-SYS Remote Control Protocol - JSONRPC
Control of the Q-SYS Core from a 3rd party control system using the JSONRPC-based Q-SYS Remote Control Protocol.
Protocols
TCP Port 1710
Secure Maintenance & Support
Secure communications for diagnostics by QSC engineering if remote support is requested, authorized, and provided by the user.
Protocols
Secure Shell: TCP Port 22
Q-SYS Device Discovery via mDNS / Bonjour
Q-SYS device access on the network via hostname. Some Q-SYS plugin developers also leverage the mDNS service.
Protocols
Multicast Domain Name Service (mDNS): Multicast UDP 224.0.0.251 on Port 5353
Hovermon Audio
Allows the Q-SYS Designer application to listen to audio throughout the DSP design for troubleshooting purposes.
Protocols
Outbound from Q-SYS Core: UDP Ephemeral Port
VoIP Telephony Control
Q-SYS Softphone control
Protocols
SIP/TLS
VoIP Telephony Audio
Q-SYS Softphone audio
Protocols
RTP/SRTP
AES67
Dante
