Transcript
Products & Applications
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General MAGIC Compact i2-7kHz incorporates an 7-kHz audio codec for bi-directional communication. The 7-kHz coding algorithm supports only a small delay less than 10 ms. Furthermore only one B channel or one 64-kbit/s channel will be occupied by the 7-kHz coded signal. In addition to the audio signal also a data signal can be transmitted according to the J.52 standard. MAGIC Compact i2-7kHz incorporates the new audio transmission standard which allows communication to the famous PKI 7-kHz ISDN Telephone delivered also by AVT.
• Audio codec with 7-kHz/3.1-kHz bandwidth for bi-directional communication • Data interface for file transfer and application sharing compliant to T.120 • Analogue audio interface • Telephone handset interface
Function
• MAGIC Compact i2-7kHz/ISDN with 2xSo interfaces
After the connection to the partner system is established MAGIC Compact i2-7kHz detects automatically the coding capability of the other system. Is the 7-kHz coding standard available both systems will automatic run in the 7-kHz mode. If not the system will use 3.1-kHz coding.
• Three keys for fast and simple dialling
For quick reporting the telephone handset can be used. Via the analogue audio interface a external source such as a microphone with pre-amplifier or an echo canceller for room systems can be connected.
A udio & Video over netw orks
• MAGIC Compact i2-7kHz/E1 with 2-Mbit/s,T1 (1.544-Mbit/s) according to G.703/G.704 and X.21 interfaces
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Network Modules
Options
• ISDN Module
• DOS PC Software
For the connection of the MAGIC Compact i2 units to the ISDN network ISDN Modules with 2 x So have to be used.
For experienced users a control software is available which opens access to all possible MAGIC Compact i2-7-kHz features such as Remote Control, Software Download, Control of external equipment and so on.
• E1, T1, X.21 Module For 2-Mbit/s, T1 and X.21 network connections a E1/ T1, X.21 Module has to be used. This can be used for audio transmission via 2-Mbit/s and T1 telecom networks and via copper wires. Using copper wires a distance of 2 km can be briged.
• Distribution Software Using the distribution mode of the unit an audio signal can be transmitted to 4 different locations at the same time.
• Telephone handset A Telephone handset can be connected for transmitting audio signals in a quick and simple way.
Technical Data
• Data Interfaces
Products & Applications
• Network Interfaces: E1/X.21 Module -
E1 (2.048-Mbit/s) T1 (1.544-Mbit/s) X.21 Interface
G.703, G.704 G.703 64...1920-kbit/s
• Network Interfaces: ISDN Module -
2 x So 2 Mbit/s Module
64 ... 256-kbit/s
-
LSD (Low Speed Data) HSD (High Speed Data) USER Input/Output
• User Interfaces -
PC Control
Extension Bus
• Signalling Procedures
• Miscellaneous
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• Decoding and Coding Algorithms -
7-kHz (48/56-kbit/s) 3.1 kHz (56-kbit/s) 3.1 kHz (16-kbit/s)
(Codec) ITU-T G.722 (Codec) ITU-T G.711 (Codec) ITU-T G.728
V.24/RS232
• Cascading Interface -
ITU-T J.52 No signalling
V.24/RS232 V.11/X.21 TTL/SUB-D
Power Supply Frequency Power consumption EMC Electrical safety Temperature Relative humidity Dimensions
V.11/SUB-D
90...253V AC 50/60 Hz typ. 50 VA VDE0878, B EN60950 +5°C ... +40°C 5 % ... 85 % 44 x 449 x 400 mm
• Audio Interfaces -
Analogue Input Analogue Output
XLR socket XLR connector
Ordering Information MAGIC Compact i2-7kHz ISDN Module E1/X.21 Module Telephone hand set PC DOS Software Distribution Mode Software MAGIC Keypad
229704 500001 500003 715012 331518 332341 717120 $97 $XGLR 9LGHR 7HFKQRORJLHV *PE+ 5DWKVEHUJVWUDVVH ' 1XHUQEHUJ
A udio & Video over netw orks
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Juli 2000 - AVT Audio Video Technologies GmbH - Subject to technical alterations
