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GatesAir PTR-255 Program Audio Codec Module
Intraplex Products Issue 2.1, February 2006
26
Table 3-8
Miscellaneous Settings SW7
Switch
Description
LOOP[1,0]
Loopback switches (see section 4.2, Loopbacks, for details).
LOOP1
LOOP0
Effect
Up
Up
No loopback
Up
Down
Activate local loopback
Down
Up
Activate network loopback
Down
Down
Set card to receive-only mode
FS48
AES/EBU output sample rate.
Up = 32 ksps, Down = 48 ksps
AESEBU
Audio input format.
Up = Analog audio input, Down = AES/EBU audio input
PRO
AES/EBU audio output format.
Up = Consumer audio format, Down = Pro audio format
EXTCLK
Clock sync (see Section 2.3, Digital Audio, for details).
Up = Sync to internal clock, Down = Sync to external AES clock
DAB
For future use. Must be set UP.
IMUX[1,0]
Inverse multiplexing mode.
IMUX1
IMUX0
IMUX mode
Up
Up
None (use in any non-ISDN multiplexer)
Up
Down
FHG (use with MPEG Layer 3 in an ISDN mux only)
Down
Down
CCS (use with MPEG Layer 2 in an ISDN mux only)
BAUD[2,1,0]
Baud rate for the auxiliary data channel
BAUD2
BAUD1
BAUD0
Data Rate (and contact closures)
Up
Up
Up
Off
Up
Up
Down
1200 bps
Up
Down
Up
2400 bps
Up
Down
Down
9600 bps