Comtech EF Data MIDAS 4 System and Design - Manual (Page 23)

System and Design Manual, Revision 2
Introduction 1–9
Control Channels
Control channels provide the connectivity between the MIDAS Controller and
the traffic nodes for call control and network management message transfers.
Two types of control channels are used in the system:
• Outbound control channel
• Inbound control channel
The outbound control channel carries messages from the MIDAS Controller to
the traffic nodes. The traffic nodes send messages to the MIDAS Controller
using the inbound control channel.
Network Topology
A MIDAS network consists of:
• NMS site
• Remote sites
The NMS site hosts the Network Management System. It could also host
traffic nodes, sharing the RF equipment and the antenna with the NMS.
A Traffic site consists of one or more traffic nodes, along with the RF
equipment, the antenna and the customer equipment.