Eh24xx series, Input modules for encoder chassis system – Toner Cable SDE24 Standard Definition Encoder Module User Manual
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969 Horsham Road
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Horsham, Pennsylvania 19044 USA
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Phone: 215-675-2053 Fax: 215-675-7543
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EH24xx Series
Input Modules for Encoder Chassis System
ASII ASI Input Module
The ASII provides one DVB-ASI SPTS or MPTS input for
the EH24 / EH244 / EH244IP / MEQ1000 chassis. Using
the ASII module, programs may be input to the chassis
where they will be program-filtered, retimed, and multi-
plexed with programs from the other input module, which
can be a Drake SDE24 Dual Standard Definition MPEG
Encoder Module, a HDE24 High Definition MPEG Encoder
Module, a SDI24A SDI/HD-SDI Input Module, a DTD1000
Digital ATSC 8-VSB/QAM RF Tuner and Demodulator
Module, or a second ASII Module. The ASII module can
accept data rates up to 80 Mbps.
SDE24EAS Emergency Alert SD Encoder Module
Most EAS or "All Call" systems have been analog based. The transition to digital TV distribution
provides new methods of implementation. Drake has developed a specialized SDE24EAS encoder
module to digitize legacy analog EAS receivers for digital distribution. The EAS receiver activates
the EH24 encoder host EAS or "All Call" mode by providing a contact closure. Once EAS is acti-
vated the EH24 will replace all PIDS with the encoded EAS message from the SDE24 EAS
encoder so that all programs contain the message.
Analog Interface
Composite Video Inputs:
1 composite input.
Composite Video Input Level:
1 Volt p-p +/- 3 dB.
Audio Inputs:
RCA type for L and R audio channels.
Audio Input Level:
1 V rms or 2 V rms max, user selectable.
User adjustable audio gain:
+/- 15 dB.
MPEG Encoder
Encoder Formats:
MPEG2.
Encoding Bitrate:
Constant Bitrate 1 Mbps to 8 Mbps.
Encoding Resolution:
720x480 (Standard Definition).
Video Adjustments:
Brightness, Contrast, Saturation & Hue.
Audio Encoding format:
Dolby AC-3.
Output:
The output of each SDE24 module is connected internally to
the EH24 or EH244 Encoder Host bus.
Latency SD, 480i, MPEG2:
Typically 50 mS.
ASI Input Clock:
270 MHz
ASI Input Data Rate:
Maximum of 80 Mbps
ASI Output Rate:
Identical to the ASI input
stream