Procom DVS-21 - Operation Mode Control (MI4 M) (Automatic Gain Control)

User Guide
DVS-21
02/2018 • V.1.0 • L. Wolle
101/131
© 2017 ProCom
®
Professional Communication & Service GmbH • Technical changes reserved.
Leveling of Module
Address, Port
Address and port of the module, the level (Codec setting) of which is to be changed.
Level values and direction (according to type of device)
Device types
4NSA/4NPA
To change attenuation of a module that is separated according to direction.
V100
To change the volume level of an amplifier (V100).
4W Normal/Call
To change the volume of the internal amplifier.
25W Normal/Call
To change the volume of the auxiliary amplifier of a station.
Microphone
To change the sensitivity of the microphone amplifier in stations.
Intercom interval time
To change the switching time of Level Normal/Call in stations. (Call stations)
Operation mode Control (MI4M) (Automatic gain control)
In this operating mode, a control loop is set up in conjunction with external measuring microphones,
modules MI4M and amplifiers.
The program is always active in this operating mode and reacts to measurement value telegrams of the
assigned MI4M (30h telegrams).
Switching thresholds for the permanently-assigned level values are calculated from the reference and
correction values. By comparing the measurement values with the calculated switching thresholds, the
program determines a level value and allocates this value to the amplifier.
The measurement values must be requested at each announcement by the MI4M via Line 1.
Flag (NAND)
[IN] The program can be turned off by this flag or switching on can be prevented.
MI4M
Address, Port
Address and port of the module with the assigned microphone (MI4M)
Flag Night operation
[IN] Activates the Night max value
(Time control can be set up with the Flag timing program.)
Module to level change
Address, Port
Address and port of the module, the level(Codec setting) of which is to be set.
4NSA/4NPA or V100
Internal amplifier V100 or external amplifier on 4NPA