RAVEN AR-8
Advanced DVB-ASI Protection Switching
The RAVEN AR-8 provides unique protection switching
functionality for all DVB-ASI signals.
By monitoring of the PID repetition rates the switching
can be performed on a missing component within the
stream. In case of identical input streams a seamless
switching can be achieved by synchronization of the two
inputs.
Applications
• Automatic DVB-ASI Protection Switching for
Play-outs and Head-ends
• Real Seamless Switching for redundant
Distribution Networks
•
Key Features
• Advanced Protection Switching
• Full Redundancy
− Redundant hot-swappable PSUs
− Hot swap and hot plug supported by all cards
− Standalone operation of all components
− Available as 3RU version (up to 8 switching Modules)
− Passive bypass in case of power fail or card failure
− MPEG-TS monitoring
• Automatic Protection Switching (APS)
− Switching on DVB-ASI Carrier Loss and MPEG-TS sync
Loss
− Switching on missing program elements by PID
repetition rate monitoring
− Seamless switching by eliminating differential delay
atecom´s™ RAVEN AR-8 provides the most
advanced MPEG-TS protection switching available
in the market. It prevents from service outages
caused by equipment failure or errors being
introduced by disturbed transmission lines. The
RAVEN AR-8 comes as 3RU with up to 8 MPEG-TS
switch cards.
The transparent handling of the MPEG-streams,
SPTS and MPTS, allows for application in SFN
networks. Packet aligned protection-switching
guarantees the integrity of the output stream.
Each switch provides a passive loop-through to
assure the presence of an output signal even in
case of a power or card failure.
In case of identical input signals (two copies of the
same stream) the switches first synchronize the
two inputs to enable seamless switching. The
switches can eliminate a differential delay of up to
87.380 TS packets (~6s@20Mbps). Furthermore, if
corrupted TS-packets can be identified either by
the TEI (Transport Error Indicator) or an invalid
MPEG-RS (204 Byte packet format), the switch can
replace such packets by the corresponding packet
from the other input, leading to an improved
quality of the output stream compared to the
individual input streams. For this kind of operation
no external time reference, like GPS is required.
between identical MPEG streams
− MPEG-TS Packet exchange
• Management
− SNMPv2c or SNMPv3
− Web-Interface
In case of individual input streams, generated by
different sources (Multiplexers), only a nonseamless protection switching can be performed.
In this application, by monitoring the repetition
rate of individual PIDs, a protection switching can
also be forced also by a missing service within the
MPEG-TS.
RAVEN AR-8
Advanced DVB-ASI Protection Switching
Technical Specifications
Housing
Type
Dimensions (W * D * H)
Cooling
Mounting rack space
3RU, 19” rack-mountable, mounting kit incl.
440 * 300 * 132 mm
External fan unit, bottom to top
min. 5RU, incl. external fan unit
Power
No. of PSUs
AC-PSU
DC-PSU
Power Consumption
2 AC/AC, AC/DC or DC/DC, load-balancing, hot swappable
100V~to 240V~, 50Hz to 60Hz
36V= to 60V=
Max. 260W
Controller Cards
No. of Controller Cards
2, optional, required for central management only
DVB-ASI Switch Cards
Max. no. of Cards
No. of DVB-ASI Inputs
No. of DVB-ASI Outputs
DVB-ASI framing
TS-Packet Size
MPEG-TS Reed-Solomon
MPEG-TS Characteristics
Delay Compensation *
TS Packet Exchange **
Switching Mode
8
2
1 Output with passive bypass, 3 monitor ports with configurable source signal (Input 1, Input 2 or Output)
Packet- or Byte-Mode, configurable on output
188 or 204 Byte, auto-detect on input, configurable on output
Correction on input with TEI tagging of uncorrectable TS packets, RS generation on Output
SPTS and MPTS to ISO/IEC 13818-1 with TS-Rate from 0.2 to 213.72Mbps
Max. 87.381 TS-Packets (~6.5 sec. @ 20Mbps TS-Rate)
Exchange of TEI tagged TS-Packets by the corresponding TS packet from the other input
Seamless for identical input streams**
Near-seamless for individual input streams
Mega-frame aware switching for DVB SFN streams by MIP alignment
LOS, LOF, PID repetition rate of individual PIDs, ETR 101 290 1st and 2nd priority errors
Switching Criteria
Management
Protocols
Alarm Relays
SNMPv2c, SNMPv3, HTTP, CLI
5, user-configurable
Environmental Conditions
Operation Temperature
Storage Temperature
Relative Humidity
0°C to 40°C (+32°F to + 104°F)
-20°C to 70°C (-4°F to +158°F)
5% to 95% at 40°C, non-condensing
Compliance
Safety
EMC
UL-UL60950-1, C-UL to CAN/CSA 22.2 No. 60950-1, EN 60950-1, EN 60825-1, CB-IEC 60950-1
FCC 47 CFR Ch. 1, Part 15 Class A
EN 55022 Class A, EN 55024, EN-61000-3-2, EN-61000-4-2, EN-61000-4-3, EN-61000-4-4,
EN-61000-4-6, EN-61000-4-11
Reduction of Hazardous Substances (RoHS) 5
Waste Electrical and Electronical Equipment (WEEE) Directive 2002/96/EC
Environmental
* identical input streams required
** only performed in case of synchronized input streams
atecom realizing visions GmbH
Neuenhofstr. 194
D-52078 Aachen
Germany
Phone:
Fax:
Email:
WEB:
+49-241-51888-100
+49-241-51888-499
[email protected]
www.atecom.com
atecom™ reserves the right to modify the specifications without prior notice.
© atecom realizing visions GmbH 2012. All rights reserved.
Revision 1.1, 2012-02-24