Specifications for your Telos VX Enterprise VoIP system.
Analog Inputs (with Telos Alliance xNode)
Input Impedance: >40 k Ohms, balanced
Nominal Level Range: Selectable, +4 dBu or -10dBv
Input Headroom: 20 dB above nominal input
Analog Outputs (with Telos Alliance xNode)
Output Source Impedance: <50 Ohms balanced
Output Load Impedance: 600 Ohms, minimum
Nominal Output Level: +4 dBu
Maximum Output Level: +24 dBu
Digital Audio Inputs and Outputs (with Telos Alliance xNode)
Reference Level: +4 dBu (-20 dB FSD)
Impedance: 110 Ohm, balanced (XLR)
Signal Format: AES-3 (AES/EBU)
AES-3 Input Compliance: 24-bit with selectable sample rate conversion, 32 kHz to 96kHz input sample rate capable
AES-3 Output Compliance: 24-bit Digital Reference: Internal (network timebase) or external reference 48 kHz, +/- 2 ppm
Internal Sampling Rate: 48 kHz
Output Sample Rate: 44.1 kHz or 48 kHz
A/D Conversions: 24-bit, Delta-Sigma, 256x oversampling
D/A Conversions: 24-bit, Delta-Sigma, 256x oversampling
Latency <3 ms, mic in to monitor out, including network and processor loop
Frequency Response (with Telos Alliance xNode)
Any input to any output: +0.5 / -0.5 dB, 20 Hz to 20 kHz
Dynamic Range (with Telos Alliance xNode)
Analog Input to Analog Output: 102 dB referenced to 0 dBFS, 105 dB “A” weighted to 0 dBFS
Analog Input to Digital Output: 105 dB referenced to 0 dBFS
Digital Input to Analog Output: 103 dB referenced to 0 dBFS, 106 dB “A” weighted
Digital Input to Digital Output: 138 dB
Total Harmonic Distortion + Noise (with Telos Alliance xNode)
Analog Input to Analog Output: <0.008%, 1 kHz, +18 dBu input, +18 dBu output
Digital Input to Digital Output: <0.0003%, 1 kHz, -20 dBFS
Digital Input to Analog Output: <0.005%, 1 kHz, -6 dBFS input, +18 dBu output
Crosstalk Isolation, Stereo Separation, and CMRR (with Telos Alliance xNode)
Analog Line channel to channel isolation: 90 dB isolation minimum, 20 Hz to 20 kHz
Analog Line Stereo separation: 85 dB isolation minimum, 20 Hz to 20 kHz
Analog Line Input CMRR: >60 dB, 20 Hz to 20 kHz
IP/Ethernet Connections
(1) Gigabit Ethernet via RJ-45 LAN connection (AoIP)
(1) Gigabit Ethernet via RJ-45 WAN connection (VoIP)
Processing Functions
All processing is performed at 32-bit floating-point resolution
Send AGC/limiter
Send filter
Gated receive AGC
Receive filter
Receive dynamic EQ
Ducker
Sample rate converter
Acoustic Echo Canceller
Power Supply AC Input
Hot-swap capable dual-redundant internal auto-ranging power supplies. 90 – 132 / 187 – 264 VAC, 50Hz/60Hz. IEC receptacle, internal fuse.
Power consumption: 100 Watts
Operating Temperatures
-10 degree C to +40 degree C, <90% humidity, no condensation
Studio Audio Connections
Via Livewire IP/Ethernet. Each channel (hybrid) has one input and one output
Each studio has a Program-on-Hold input
Each Acoustic Echo Canceller has two inputs (signal and reference) and one output
Livewire+™ AES67 equipped studios may take and supply audio directly to/from the network. Telos Alliance xNodes are available for analog and AES3 breakout.
VX supports AES67 connectivity. AES67 stream parameters:
(2) channels per stream, 1 ms packetization rate
Sample rate: 48 kHz
Payload type: 46
Source port: 5001
Destination port: configurable
Time to live (TTL): configurable (1-255)
IEEE 802.1p priority code point (PCP): configurable (0-7)
IEEE 802.1Q VLAN tag: configurable (0-4094)
DiffServ code point (DSCP): configurable (0-63)
Don’t Frag (DF) bit: configurable (true/false)
Receive buffer size: configurable (2000-20000 μs)
VX supports PTPv2 (IEEE 1588-2008) clocking. Domain, sync interval, announce interval, announce timeout, and many other parameters are all configurable.
Telco Connections
Audio: standard RTP. Codecs: g.711μ-Law and A-Law, and G.722.
Control: standard SIP endpoint. ISDN PRI/T-1, ISDN BRI, and POTS may be supported with the appropriate interfaces using an existing PBX or an Asterisk-based PBX optionally configured by Telos Alliance.
Dimensions and Weight
Rackmount 1RU hardware platform, rack rails provided
1.75” H x 19” W x 15.5” D (44 x 483 x 394 mm)