PortaNet User Manual
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X.4.1
Headphone outputs
127
X.4.1.1
Attenuation when the MIC/LINE level input goes to Talkback or
Program.............................................................................. 128
X.4.1.2
Enable from TB Key ...................................................... 129
X.4.2
Balanced audio outputs.
129
Operation examples .......................................................... 130
XI.1 Using the TalkBack channel
130
XI.2 Connecting to an external mixer
132
XI.3 Stereo operation mode:
134
Problem-solving guide ....................................................... 136
XII.1 Audio problems
136
XII.1.1
No Audio on the outputs
136
XII.1.2
The program line is connected but there is no audio on the outputs136
XII.1.3
There is no audio output at either end
137
XII.1.4
Audio distortion
137
XII.2 ISDN communication problems
137
XII.2.1
Unit cannot make outgoing calls
137
XII.2.2
Unit cannot receive incoming calls
138
XII.3 IP communication problems
138
XII.3.1
Prodys Codec’s Web Page cannot be accessed
138
XII.3.2
When connecting two audiocodecs in unicast, there is no audio at
one end.
141
XII.3.3
No audio when connecting two audiocodecs using Multicast
142
XII.3.4
Interruptions to audio when connecting two Prodys Codecs.
142
Technical specifications ..................................................... 145
Audio Interfaces
145
Audio Compression
146
BANDWIDTH (KHz)
146
IP Protocols and compatibility
149
Comunication ports
149
ISDN
149
LAN port
149
GPIO port
149
RS232 port
149
Power supply.
149
Weight and dimensions
150
Connectors ..................................................................... 151
XIV.1 Audio inputs
151