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Net-2000™ VCU Users Manual

Version 4.0, December, 2013

Net-

2000™ VCU Control

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Commands to the Net-2000™-VCU can be issued after receiving the prompt. Each time a command is issued to the

Net-2000™-VCU it will respond with a string indicating the command was accepted as “OK” or an error message.

After another prompt is ready to receive a new command. Any newline-terminated string reported by the Net-

2000™-VCU between the time a command is issued and a new command prompt is received indicates an error was

encountered executing the command.

Commands consist of a command word, zero or more arguments, and a newline (which marks the end of the

command). Commands for the serial port interface are listed in the following subsections.

When issuing commands at the "adsh>" prompt the NET-2000™ VCU will respond with "<cmd> OK" (where

<cmd> is the command issued) or an error message if the command fails.

3.7.1.1 VOIP mode command

The VOIP commands start the Net-2000™-VCU to VOIP mode.

adsh> dut voip <args>

where args are

arg format arg name arg values

-v [h,l,2,2r] voice source h=handset, l=4-wire, 2=2-wire, 2r=2-wire wait on ring

-c [e,a,s] channel source e=ethernet, a=RS-422 Asynchronous, s= RS-422 Synchronous

-o [gain]

codec output

gain

0,-3,-6 dB

-p [port] port number for channel source == Ethernet

-d [config]

configuration

data

for VAD, Tone Detection, Noise Suppression, Echo canceller Auto

Gain Control (AGC) and High Pitch Detection (in order) depending

on the vocoder implementation to turn a configuration on use '1' to

turn it off use '0'

For example:

"-d 1 0 0 1 0 0" turns vad ON, echo canceller ON only

-r [vocoder] vocoder and FEC

vocoder type is "AMBE+2", to specify FEC on or off pass in

",<rate_index>"

For example:

"-r AMBE+2t,01" specifies -1 vocoder with no FEC

[ip_addr]

the IP address to

send data to

required only if the channel interface is Ethernet

3.7.1.2 VOIP Mode Command Example

adsh> dut voip -v l -c e -r AMBE+2,00 192.168.24.173

In this example the Net-2000™-VCU starts VOIP Mode using the 4-wire interface for voice and Ethernet for the

channel using the -1 vocoder with FEC enabled. It communicates with the device at ethernet address

192.168.24.173 with the default UDP port (4000).

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