Adtec digital EN-20 (version 2.03.06) Manual - Manual (Page 10)

Chapter 1 - Overview
Product Introduction
The EN20 is a two-channel High and Standard definition MPEG-2 or H.264 encoder
supporting ATSC and DVB tables through ASI and IP transport streams. The EN20 can be
ordered with optional QAM modulation for distribution applications.
It inherits Adtec’s broadcast quality compression, advanced feature set, service
performance and reliability in the new dense two-channel platform targeted towards
broadcasters, cable and IP compression applications.
The device automatically detects video and audio from two sources (combination of
HD and SD acceptable), encodes, multiplexes and sends them back out as one combined TS
via IP, ASI or optional QAM. Closed captioning and support for Emergency Alert (EAS)
triggering are standard.
EN20-02: Dual Channel SDI HD and SD MPEG-2 Encoder with ASI and GigE outputs. Auto
detects two channels of any combination of high and standard definition sources with
embedded PCM or Dolby audio via SDI inputs. Alternate inputs are CVBS (BNC connector,
supports SD only) and analog audio supplied via DB-9 input. Encodes video to MPEG-2
Transport Stream and encodes PCM audio to Dolby AC3 (with feature key enabled) or MPEG-
1 Layer 2. Passthru for Linear PCM and Dolby audio (2.0, E, and 5.1) is also supported.
EN-20 then encapsulates MPTS and outputs ASI and GigE concurrently. Supports ATSC A69
PSIP and DVB-SI ETSI EN 300 468 service information, closed captioning support per
embedded SDI or per CEA 608 via composite video input with up-conversion to CEA 708
Digital captions internally and EAS triggering. Condition Access BISS 1 / E encryption
included.
EN20-02 Options:
EN20-VE1-01: MPEG-2 video encode module. Supports D1, 1080i, and 720p on 29.97
and 25 frames per second. 420 chroma for HD and SD video compression; 422 chroma for
SD only. HD = MP@HL. SD = MP@ML and 422P@ML
EN20-VE2-01: MPEG-4 (AVC/H.264) video encode module. Supports D1, 1080i, and 720p
on 29.97 and 25 frames per second. 420 chroma for HD and SD video compression; 422
chroma for SD only. HD = [email protected]. SD = [email protected]
EN20-AE1-01: Dolby Digital 2.0 Audio Encoding module. **Does not include license key**
EN20-QM1-01: EN20-02 + QAM Modulator – Adds ability to modulate QAM Annex A or B,
and output RF simultaneously with ASI and GigE.
Keys:
EN20-AE1-DOLBY-KEY: Dolby Digital audio encode software key. Dual channel DD (AC3)
2.0 or 1.0 mode