Ross NWE-TS, User Manual, Page: 19 / 68

NWE-TS User Manual (Iss. 01) Installation • 2–3
Planning the Installation
Before installing the NWE-TS, determine the following:
• Compatibility with Existing Plant
• Determine Encoder Insertion Point
• Select the Time Reference Source
Compatibility with Existing Plant
The NWE-TS is designed to work with an ATSC Transport Stream carried in a DVB-ASI signal
on coaxial cable. With companion converters, it can also be used in a SMPTE 310M path, as
discussed in the chapter “
SMPTE 310M Configuration ” on page 6-1.
Determine Encoder Insertion Point
The best insertion point for the NWE-TS is downstream of the ATSC emission multiplexer, since
this enables it to use the PSIP data in identifying programs for watermarking. The PSIP is an
essential component of an ATSC Transport Stream. If it is missing, an alarm is generated and no
watermarking occurs.
Select the Time Reference Source
The NWE-TS requires an accurate time reference, in order to ensure correct watermarking and
crediting. The preferred source is Network Time Protocol (NTP) for the following reasons:
• It provides the date as well as the time.
• It reduces cabling since it uses the network connection which is required for DashBoard
control and monitoring.
• It is less prone to configuration errors, especially when Daylight Saving Time (DST) is
observed and/or when a time zone offset is required.
If NTP is unavailable at your facility, the time reference can be supplied by a Linear Timecode
(LTC) input.
For More Information on...
• connecting an LTC device to your NWE-TS, refer to the section“ Linear Timecode
Cabling ” on page 2-11.
• selecting a time reference source for the NWE-TS, refer to the section “ Configuring the
Time Reference ” on page 3-5.