GatesAir PTR-255 Program Audio Codec Module
Intraplex Products Issue 2.1, February 2006
8 Specifications
Dual Domain, Analog and AES/EBU
Input is selectable analog or AES/EBU
Output is simultaneous analog and AES/EBU
Each module is an encoder and decoder
ISO/MPEG I & II Layer 2 and Layer 3, G.722
Any format can be used in either direction.
When used in an IntraLink ISDN Multiplexer, the PTR-255
is compatible with CCS CDQ Prima™, Telos Zephyr™,
Comrex DX Series™, Dialog4 MusicTaxi™ and other
codecs operating at MPEG audio Layer 2, Layer 3 or
G.722.
Five-level stereo VU meters on transmit and receive with
overload, Service on/ off, Loopback, Receive Data
activity, Sync (receive data), Lock (transmit data)
Analog Audio Characteristics:
(Specifications at 48 kHz sampling rate, 24-bit linear coding, analog in to analog out,
unless otherwise noted)
16, 24, 32 and 48 kHz/second
24-bit linear ADC, 20-bit linear DAC, 128× oversampling
Greater than 100 dB, RMS, A-weighted
Less than -86 dB at 1 kHz at -1 dBFS
Greater than 98 dB RMS, A-weighted
Less than -100 dB at 1 kHz
Adjustable from +9 dBu to +24 dBu in 1 dB steps
Input: balanced, 600
Output: balanced, <100