Installation Guide

Chapter 5 Web GUI Setup and Monitoring
242 OL-31086-01
Advanced Settings
Description
Announce User's Title
If User String is selected as the Announce Title Source, enter
the SAP identifier (ID)/string, up to 31 characters.
5 Click OK.
Configuring Forward Error Correction Settings
Note: This feature is for the D9854-I only.
Due to its nature (occasionally packet loss, packet reordering, and/or stream jitter) a
traditional IP network is not the perfect channel for transmitting broadcast-quality
compressed video content. Forward Error Correction (FEC) developed by the Pro-
MPEG forum is a unique technology to enhance the robustness of video traffic over
IP networks. The D9854-I supports Pro-MPEG FEC Code of Practice (COP) #3
release2 and SMPTE-2022, which is based on the exclusive or (XOR) boolean
operator applied to a number of data packets. When a FEC packet is created by
performing the XOR boolean operation on a number of RTP packets, a missing RTP
packet can always be reconstructed by performing the XOR operation on the FEC
packet and the remaining RTP packets.
 FEC = RTP1 XOR RTP2
 RTP1 = FEC XOR RTP2
 RTP2 = FEC XOR RTP1
1 In the MPEG over IP Output Stream page, click the radio button of the stream
you want to configure FEC settings.
2 Click FEC. The FEC Settings dialog is displayed.
3 From the FEC Mode drop-down list, choose an error protection profile.