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Telos Systems Zephyr XSTREAM ISDN Audio Codec

Estimated price for orientation: 549 $

Category: Studio or Live Equipment Package
Class:











Description
Condition: Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition Brand: Telos Zephyr


Cosmetic Condition:In excellent condition, with very light scuffs on the top  as shown (wouldn't be seen when mounted in a rack.)

Auction Includes
Used Telos Zephyr Xstream ZXS2 (SN:0074T2959) (Item #S-Telos-ZXS2)
Power Cable

Features:
Ethernet ports for remote control via LAN or WANBring audio from any codec anywhere in the world directly to your Axia network.Auto Receive mode quickly determines the correct coding algorithm for incoming audio streams.MPEG AAC (Advanced Audio Coding) permits true CD-quality stereo transmission with a connection speed of just 128 kbps.Low-Delay MPEG AAC-LD coding delivers crystal-clear audio quality and greatly reduced encoding delay for smooth, natural bi-directional remotes.MPEG Layer-3 coding for compatibility with the largest number of third-party codecs. When using MPEG Layer-3, a unique Dual Receive mode allows reception of independent audio streams arriving from two distant ISDN lines – great for bilingual broadcasts.Exclusive Error Concealment technology prevents occasional network glitches from being heard.RS-232 and 8-input, 8-output parallel ports provide ancillary data and bi-directional contact closures.Hand-in-glove operation with companion Zephyr Xport portable codec for reception of 15kHz audio using a POTS field connection.V.35/X21 option allows connection to serial synchronous data equipment, for use with dedicated lines, Switched 56 circuits or satellite services.N/ACIP compliant for compatibility with the widest range of ISDN codecs.Convenient ISDN Voice Telephone Mode allows placement of standard G.711 phone calls from your Zephyr Xstream.
Additional info from the manufacturer:
Zephyr Xstream is the world’s leading ISDN codec, compatible with the widest variety of third party codecs. Coding choices include MPEG4-AAC and AAC-LD, Layer 2, Layer 3 & G.722 coding for full-duplex stereo operation of up to 20 kHz audio on a single ISDN line; broadcast quality mono audio at 15 kHz or 20 kHz is possible on a single ISDN “B” channel or other 56/64 kbps channel. All Xstream models feature professional balanced analog inputs/outputs, as well as Livewire® I/O for quick connection to Axia® networks; AES/EBU I/O is standard on rackmount model. An ISDN TA with integral NT1 provides worldwide ISDN compatibility without software changes. Remote Control is possible over RS-232 or Ethernet. Available in rack-mount version and portable version which incorporates a 4-channel stereo DSP mixer with selectable digital processing by Omnia®.Specs:
General
Full duplex, high-fidelity codec using MPEG-2 AAC, MPEG-4 AAC-LD MPEG-2 Layer-3, MPEG-2 Layer-2, AACPlus, and G.722; fully compliant with international standards.
Frequency Response
    20 - 20kHz @ 48kHz fs (+0/-1dB, swept sine tone procedure)
    AAC all modes except Stereo 64: 20-19,800Hz at 48kHz fs., 20-15,000Hz at 32kHz fs.
    AAC Stereo 64: 20-10,000Hz at 48kHz fs., 20-7,000Hz at 32kHz fs
    AACPlus mono (for use reception from the Xport): 20-15,000 Hz 48kHz fs
    Layer 3 all modes: 20-16,000Hz at 48kHz fs., 20-15,000Hz at 32kHz fs
    Layer 2 mono, dual mono: 20-7.8kHz/9.8kHz
    Layer 2 mono 20-8.6 kHz at 24 kHz fs.
    Layer 2 joint stereo: 20-20,000Hz at 48kHz fs. 20-15 kHz at 32kHz fs
    G.722: 20-7,500Hz.THD+N: Audio loopback, 48kHz fs, analog I/O, input at 1kHz +20dBu: 0.004%
Dynamic Range : A Weighting, AAC, Layer-3 or 2 end-to-end: 101dB typical
Send Input : Active balanced with RF protection.
Zephyr Xstream:
    LINE: Settable to -11 or +4dBu (or -15 to 0 dBu) nominal level
    Clip point: 18 dB above chosen nominal level.
    Impedance: > 10K Ohms (x2)
    Connector: XLR female/quarter-inch TRS combo connector.
Zephyr Xstream MX and MXP:
    LINE: -11 or +4dBu nominal level (switchable).
    MIC: Accepts -65 to -24 dBu in 2 ranges (switchable). Mic impedance </= 1000 Ohms
    Clip point: 15 dB above chosen nominal level.
    Impedance: Line > 10K Ohms (x2)
    Connector: XLR female/quarter-inch TRS combo connector.
Limiter
Zephyr Xstream MXP: Internal DSP-based AGC/limiter with Omnia® audio processing. Includes presets for music & voice, selectable per channel.
Zephyr Xstream: Analog soft-clipper prevents A/D converter overload without loss of dynamic range
Line Bit Rates (ISDN): 56 or 64kbps per channel, front panel selectable
Bit Rates (V.35/X.21): 56, 64, 112 (imuxed), 128 (imuxed), 96, 128, 256, 384 kbps front panel selectable
Receive Output
    Active differential.
    Level: Front panel selectable for -10 or +4dBu, nominal.
    Impedance: < 33 Ohms (x2)
    XLR male
AES/EBU Digital I/O (rackmount version only)
    Sample rates supported: 32, 44.1 and 48kHz
    Rate conversion: Input and output independently selectable. Can be bypassed.
    Input clock: From external source or Telco clock.
    Output clock: From transmission sample rate, external source, or AES/EBU input.
Inverse Multiplex/Demultiplex
Internal channel splitting/combining of two network channels for stereo modes.
    AAC: Telos Zephyr™ protocol.
    AAC-LD: Telos Zephyr™ protocol.
    Layer-3: FHG/Telos Zephyr™ (Buchta) protocol.
    Layer-2: CCS CDQ™ protocol compatible.Optional V.35/X.21 Direct Digital Interface
    Two ports, both V.35/X.21. Automatically selected when the appropriate cable is connected.
ISDN Interface
    Compatible with National ISDN, AT&T 5ESS custom, Northern Telecom DMS-100 custom, Siemens EWSD, INS 64(Japan) and EURO-ISDN (ETS-300). Compatibility and approval pending in some countries; contact Telos for current status.
LAN Interface
    100Base-T Ethernet port using RJ-45 connector. Full Duplex Supports TCP/IP (HTML, Telnet and FTP).
ISDN Voice Telephone Mode
    Two channels using G.711 standard, μ-Law or A-Law. 300–3,400Hz. DTMF signaling provided (CCITT standard).
    Remote Control and Ancillary Data
    RS-232 9-pin D-Sub female (DCE): Asynchronous; 8 data, no parity, 1/2 stop, 2400-57,600 bps.
    100Base-T Ethernet port using RJ-45-style connector using Telnet or web browser (HTML).