- Telos Zephyr Xstream Features:
- G.722, G.711 and MPEG Layer-3 and Layer-2 coding for compatibility MPEG-2 AAC coding for CD-quality audio
- MPEG-4 AAC-LD coding for high audio quality with low delay
- 100Base-T Ethernet port allows remote control and streaming of AAC or MP3-coded audio over a LAN, WAN or the Internet (TCP/IP network connectivity also include web browser remote control and easy upgrade of system software via FTP)
- Livewire input/output support for easy one-connector-integration into Axia local audio networks
- Analog and AES/EBU inputs and outputs with independent sample rate converters
- Front-panel headphone jack with level control
- Auto-configuring 90-240 volt power supply
- Optional V.35/X.21 interface available
- All Telos products include a 5 year warranty
- Full duplex, high-fidelity ISDN transceiver using MPEG-2 AAC, MPEG-4 AAC-LD, ISO/MPEG Layer 3, ISO/MPEG Layer 2, and G.722, fully compliant with international standards. Stereo or mono transmit configurations, both with stereo receive.
- Frequency Response
- 20 - 20kHz @ 48kHz fs (+0/-1dB, swept sine tone procedure)
- THD+N
- Far loopback (end-to-end), 48kHz fs, analog I/O, input at 1kHz +20dBu, .004%
- Dynamic Range
- A Weighting, AAC, Layer 3 or 2 end-to-end: 101dB typical
- SOFTWARE UPGRADES
- Downloadable from Telos; uses FTP over 10Base-T Ethernet connection.
- Stereo and Dual-Mono Modes Using Two ISDN “B” channels:
- MPEG-2 AAC Joint Stereo @ 20kHz or 15kHz for maximum fidelity.
- MPEG-2 AAC independent Stereo @ 20kHz or 15kHz.
- MPEG-4 AAC-LD Joint Stereo @ 14kHz for high quality with low delay
- MPEG-4 AAC-LD Independent Stereo @ 14kHz for high quality with low delay
- Layer 3 Joint Stereo @ 16 kHz or 15kHz for high fidelity and compatibility.
- Layer 3 Independent Stereo @ 16kHz or 15kHz for compatibility and surround-sound transmission.
- Layer 3 Indepenedent Dual-Mono allows each “B” channel to independently transmit and receive 15.8kHz.
- Layer 2 Joint Stereo @ 20kHz or 15kHz.
- Layer 2 Independent Stereo @ 7.8 or 9.8kHz.
- G.722 Mono-Dual allows each “B” channel to independently transmit and receive 7kHz. Stereo Modes Using One ISDN “B” channel:
- MPEG-2 AAC Stereo 64 @ 7kHz or 10kHz.
- Mono Modes Using One ISDN “B” channel:
- MPEG-2 AAC @ 20kHz or 15kHz for maximum fidelity.
- MPEG-4 AAC-LD @ 15.8kHz for high quality with low delay
- Layer 3 @ 20kHz or 15kHz for high fidelity and compatibility.
- Layer 2 @ 7.8kHz or 9.8kHz.
- Layer 2 Mono@ 8.6kHz (24kHz fs).
- G.722 @ 7kHz.
- ISDN Telephone Mode:
- G.711 is used to call a standard POTS telephone for low-grade voice communications at 300Hz - 3.4kHz.
- LINE BIT RATES
- 56 or 64kbps per channel, front panel selectable.
- LIMITER
- Zephyr Xstream:
- Soft clipper prevents A/D converter overload without loss of dynamic range.
- Zephyr Xstream MX and MXP only:
- Internal DSP-based AGC/limiter with Omnia® audio processing. Includes presets for music & voice, selectable per channel.
- SEND INPUT
- Active balanced with RF protection.
- Zephyr Xstream:
- LINE: -12 to +4dBu nominal level.
- Clip point: 18dB above chosen nominal.
- Bridging: < 10K ohms (x2)
- XLR female/quarter-inch TRS combo connector.
- Zephyr Xstream MX and MXP:
- XLR female/quarter-inch TRS combo connector.
- LINE/MIC: -12, +4/-55, -35dBu nominal level.
- Clip point: 16dB above chosen nominal.
- Bridging: < 10K ohms (x2)
- RECEIVE OUTPUT
- XLR male, active differential
- Level:
- Front panel selectable for -10 or +4dBu, nominal.
- Impedance:
- 33 ohms (x2)
- AES/EBU DIGITAL I/O (Zephyr Xstream 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 Zephyr telco clock.
- Output clock:
- From sample frequency, external source, or AES/EBU input.
- MULTIPLEX/DEMULTIPLEX
- Internal channel splitting/combining of two network channels for stereo modes.
- MPEG-2 AAC:
- Telos Zephyr protocol.
- Layer 3:
- FHG/Telos Zephyr 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, Northern Telecom DMS-100, Siemens EWSD, INS 64(Japan) and EURO-ISDN. Compatibility and approval pending in some countries; contact Telos for current status. Supports “S” (4-wire) & “U” (2-wire) ISDN interfaces.
- LAN INTERFACE
- 10Base-T Ethernet port using RJ-45 connector. Supports TCP/IP (HTTP, Telnet and FTP).
- ISDN VOICE TELEPHONE MODE
- 2 channels using G.711 standard, μLaw or A-Law. 300–3,400Hz. DTMF provided (CCITT standard). ISDN Modem Mode supports single Xport POTS
- connection.
- 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. 10Base-T Ethernet port using RJ-45-style connector. Bi-directional ancillary data: Serial connection at 9600bps; eight contact closures.
- CONTROL PORTS
- Eight bi-directional inputs/outputs for end-to-end contact closure emulation. Inputs: Closure to ground; integral pull-up to 5 volts. External pull-ups can be used to support higher voltages. Outputs: Open collector, sinks up to 125mA to ground.
- RESOLUTION
- Send Input:
- MPEG, 24 bits; G.722, 16 bits
- Receive Output:
- MPEG, 24 bits; G.722, 16 bits
- POWER SUPPLY
- 90-240 VAC (50/60 Hz) auto-configuring.
- 100 watts peak
- CE approved
- DIMENSIONS, ZEPHYR XSTREAM AND ZEPHYR XSTREAM MX
- 19" (48cm) standard rackmount front panel
- 17 1/8" (43cm) wide behind front panel
- 12 1/2" (32cm) deep
- 3 1/2" (9cm) high
- DIMENSIONS, ZEPHYR XSTREAM MXP
- 18 1/4" (46cm) wide
- 14" (36cm) deep
- 4 1/4" (11cm) high
- SHIPPING WEIGHT
- 17 pounds (7.7kg)
