User Guide
DVS-21
02/2018
• V.1.0 • L. Wolle
90/131
© 2017 ProCom
®
Professional Communication & Service GmbH • Technical changes reserved.
9.14 AF Switching
Universal program for switching AF and lines.
Priority
Handling of priorities (
Fixed audio channel
Channel to be used internally for AF transmission (
Codec
Audio compression method with which the codec handles the actual connection.
The options are: µLaw (default), ADPCM (7kHz) and aLaw (
Input
Line control input for activation of the program
AF Input
Address and port of the AF source
AF Output
Address and port of the AF destination
Call station / 4FTR
AF transmission from/to call stations or via long-distance lines requires a connection
to a control line. (see Section
Line
)
Fixed E1 channel
AF transmission via 2Mbit line in permanently-assigned channel (see Channel)
Line
Control line for connection to AF transmission (1-120) The
Line
corresponds to the
key number at call stations. Call stations functioning as a destination require linking
to switch on the PA amplifier and to illuminate the keys. Control lines over and above
the available number of keys will result in no illumination taking place.
Channel
Permanently-assigned E1 channel for AF transmission by means of 2Mbit lines. (31-
1) The channels are treated as
Line
with an offset of 300.
Repeat
Repetition rate to refresh the current lines/channel switching state
Relay 1/2
The line is switched on if the program is activated. For example, relays can be
switched on or keys can be illuminated.
Flag (NAND)
[IN] The program can be turned off by this flag or switching on can be prevented.
Flag (OR)
[IN] The program can be switched on by this flag. AF channels can be taken over.
Flag (OUT) 1/2
[OUT] The flag is switched on if the program is activated. This enables further
programs to be activated for adaptation to specific requirements. It is possible to
transfer the AF channel in use.
9.15 USE1 Intercom
Program for switchboard connections via RS485
WARNING!
Only modules up to Hardware version 2 (not for new systems)!
Program supported only up to DVS Firmware 7.21!
Currently systems are connected via 2Mbit connections (E1)!
(see Section
provided for system-wide intercom.