User guide

CobraNet Programmer’s Reference

Overview

Host Management Interface (HMI) - The hardware (8-bit bi-directional parallel interface)

and protocol for accessing MI variables locally. The HMI is described in detail in the

CS4961xx/CS1810xx Hardware Manual and CM-1 Hardware Manual.

Management Interface (MI) - The set of variables used to control and monitor the

CobraNet interface. MI variables are accessible both locally through the Host

Management Interface (HMI) and over the network using Simple Network Management

Protocol (SNMP). MI variables are described in detail in Section 6. "Management

Interface Variable Reference" on page 28.

Packet Bridge - A function provided by the CobraNet protocol which allows a CobraNet

interface to send and receive raw Ethernet packets over the same Ethernet media used

for audio transmission.

Performer - A CobraNet interface which receives its transmission permissions and

master clock from a conductor. In the event a conductor fails, the CobraNet protocol will

automatically promote a performer to become the new conductor.

Receiver - A logical entity within the CobraNet interface capable of receiving one Bundle.

Serial Bridge - A function provided by the CobraNet protocol which allows a CobraNet

interface to send and receive asynchronous (i.e. RS-232) data over the same Ethernet

media used for audio transmission.

Transmitter - A logical entity within the CobraNet interface capable of transmitting one

Bundle.