Audio Ports

Pin Number

38

39

40

41

34

35

36

37

50

Description

Tx Audio Channel 1 in A

Tx Audio Channel 1 in B

Tx Audio Channel 2 in A

Tx Audio Channel 2 in B

Rx Audio Channel 1 out A

Rx Audio Channel 1 out B

Rx Audio Channel 2 out A

Rx Audio Channel 2 out B

Ground

All ports are 600 , with levels set independently from the front panel of +7dBm to -16dBm. Audio is encoded as 32kbpsSADPCM (or 16kbps ADPCM in some custom modes)

The Audio ports may be used in two applications:

In IBS modes if set to emulate a P1348/P1448 Audio/Data mux card, the ESC ports provide the equivalent of the two audio ports on the P1348/P1448 (ie can transmit 64kbps=2 audio channels, or 128kbps=2 audio channels plus 64 kbps data from main data port).

In IDR modes these are used to access the IDR Audio ESC channels. One or both Audio ESC's may be dropped in favour of 32 or 64kbps access to the channel by the Aux port.

P300H

P300 Series Modem Installation and Operating Handbook

Page 187

Page 187
Image 187
Paradise P300 specifications Audio Ports, Pin Number Description