How to configure NMOS

NMOS is a control protocol for the uncompressed-2110 (mainly) content.

NMOS 4 - registry: This service is only for detection and registry of current configuration and devices.

NMOS 4 registry is based on 2 steps: Finding the registry server and registering (There is also P2P mode - not relevant for us).

1. The NMOS client detects the registration server via mDns service that can wait for the server to advertise or send its own query. After detecting the server, it uses HTTP protocol (on registry defined port) where all traffic is generated by the MCM.

2. The MCM registers the “NODE” - per MCM server, “DEVICE” per each channel and each encoder, “SENDER” per each encoder TX - one per video and one per audio, “RECEIVER” per channel element - one per video, 8 for audio, 4 for metadata (ANC).

NMOS 5 - control: Configure active receivers/senders.

With NMOS 5, the MCM is an HTTP server. On MCM define port (currently 950). The MCM listens to the activation commands for both receivers and senders.

Working with mDNS

Please follow the steps below for the NMOS registry if you have an mDNS service.

1. On the MCM, do ssh and log in as the root user.

2. Use the below command to display the NMOS module logging and enable listening.

/mosaic/bin/logger nmos

3. On the MCM GUI, Navigate to Network → Configuration. Click on edit and check the check box to enable NMOS.

Working without mDNS

If you do not have an mDNS, it is possible to specify static nmos server configuration, to do so, please follow the steps below.

1. On the MCM, do ssh and log in as the root user.

2. Create a text file named: nmos.info

3. In the file fill the following fields:

It is also possible, in the following style:

Additonal flags supported on nmos.info file:

dontverify : dontverify prevents verification of the NMOS IS-04 to the query server (if not available). It is added to reduce the number of flag request. 

queryport=xxxx : queryport defines the query server port. It is added if its not same as the connection/registry port.

Note

Version 5.6.7 includes dontverify. (recommended)

Version 5.6.8 includes the query port. (optional)

4. Upload the file to the icons folder using ftp with the following credentials:

5. Once uploaded, please do a Soft Reset (System → System Information → Device Controls → System Soft Reset) on the MCM9000 for the changes to reflect.

6. Now follow the steps 2 and 3 in Working with mDNS.