32x32 Channel CobraNet Module

For decades, CobraNet® technology has been a product of choice for multi-vendor networked audio. CM-1 is a DSP-based solution providing an interface in the form of a compact, low-power module. Featuring up to 32 simultaneous bi-directional audio channels, CM-1 is designed for easy integration into a wide variety of audio products such as signal processors, mixers, amplifiers and powered speakers.


  • 100BASE-Tx Ethernet interface — 100 Mbps, full-duplex Ethernet, fully compliant with IEEE 802.3u Standard
  • Secondary 100BASE-Tx Ethernet interface — redundant network connection for fault tolerance
  • Quad synchronous serial output ports — capable of supplying 2, 8 or 16 channels at 48 or 96 kHz sample rates
  • Quad synchronous serial input ports — capable of receiving 2, 8 or 16 channels at 48 or 96 kHz sample rates
  • Studio-grade, low-jitter clock source — less than 1 ns of jitter
  • High-speed parallel host port interface — interfaces to an optional external control processor
  • SNMP agent — standards-based Ethernet control, monitoring and management
  • TFTP support — firmware updates over the network
  • Low latency — selectable 1.33, 2.66 or 5.33 ms across network
  • Optional remote power through RJ-45 connection — for powering via the Cat-5 Ethernet connection. External circuitry required
  • Asynchronous serial I/O port — bridge serial control data over Ethernet
  • Status LEDs — link, activity and CobraNet conductor status for each Ethernet jack
  • Order CM-1 or CM-1-FW option — the CM-1 Ethernet connector includes an RJ-45 jack with integrated transformer isolation. The CM-1-FW option and includes solder points to be wired to external Ethernet connector

Parametric Specifications

Description Digital audio network interface module
Ethernet IP 100BASE-Tx, 100 Mbps, full duplex Ethernet, fully compliant with IEEE 802.3u
Features Quad Synchronous, Capable of supplying up to 32 channels at 48 and/or up to 96 kHz sample rates
Low Latency Selectable 1.33, 2.66 or 5.33 ms across network

Technical Documents

CM-1 Product Bulletin

Jun 8, 2009, 0087-0609-PB : 1568 Kb

CobraNet Networked Digital Audio Technology

May 30, 2006, 0173-0506-PB : 786 Kb

CobraNet Programmer's Reference Manual

Feb 16, 2006, DS651PM25 : 873 Kb


Comprehensive Solutions