GatesAir Intraplex PTR-255 - AES;EBU Professional Format

GatesAir PTR-255 Program Audio Codec Module
Intraplex Products Issue 2.1, February 2006
9
RX Validity bit and error handling: both outputs of the PTR-255 are muted if any of these occur:
 Loss of PLL lock
 Parity error
 Biphase error
 When in 2 channel mode and A channel validity bit = 1 or B channel validity bit = 1
 When in 1 channel mode and B channel validity bit = 1
Audio sampling rates supported: Output: 32, 48 ksps; Input: 32, 44.1 and 48 ksps.
2.3.1.2 AES/EBU Professional Format
Model:
PTR-255 set to professional mode
Receiver classification:
B2
Transmitter classification:
Standard
Key: TX: N = not transmitted; Y = transmitted
RX: N = not recognized; Y = recognized; S = recognized and passed through
Table 2-2
AES/EBU Channel Status (C) Data: Professional Format
Byte
Bit
Function
RX
TX
Remarks
0
0
0 Consumer use
1 Professional use
Y
Y
Y
Y
RX: responds to either format
TX: can be set to either format
1
0 audio
1 non audio
N
N
Y
N
2-4
emphasis
000 not ind
100 no emph
110 50/15uS
111 CCITTJ17
Y
Y
Y
Y
N
Y
N
N
RX: detects and removes
emphasis before transmission
5 sampling
frequency
0 Fs locked
1 Fs unlocked
N
N
Y
N
0
6-7
Fs
00 not ind
01 48k
10 44.1k
11 32k
N
N
N
N
N
Y
N
Y
RX: Fs bits ignored: receiver and
SRC accept all source sampling
rates
1
0-3
channel mode
0000 not ind
0001 2 ch
0010 mono
0011 pri/sec
0100 stereo
0101 to 1111
N
N
N
N
N
N
N
Y
Y
N
N
N