User Guide
DVS-21
02/2018
• V.1.0 • L. Wolle
67/131
© 2017 ProCom
®
Professional Communication & Service GmbH • Technical changes reserved.
Line 7
M -> CPU
Connected load too high
(when calibrating)
Line 9
M -> CPU
Impedance error
Line 10
M -> CPU
No measuring signal
Line 11
M -> CPU
Completion message of
automatic measuring
process
Line 12
M -> CPU
Completion message of
automatic calibration
process
Line 13
M -> CPU
Port not correctly calibrated
Port 1:
Line 8
M -> CPU
Display of information:
"Impedance calibration
takes place with
loudspeaker line disabled"
Line 14
M -> CPU
A port with an impedance
error, short circuit or line
break
Line 15
M -> CPU
Any port with earth fault
(Input Line 13)
Line 16
M -> CPU
Any port with impedance
error, short circuit or line
break
Display and control elements:
(Normal mode)
LEDs
M
GREEN - OFF
no measurement
GREEN - ON
measurement active
GREEN - FLASHING (slow)
ON-LED ON: Measurement
interrupted or pending due to
priority of a public address, or
blocked by Line 14.
ON-LED OFF: S Safety lock active
(2 sec)
ON
GREEN - OFF
no public address request
GREEN - ON
Public address active, no
acknowledgment
GREEN - FLASHING (fast)
Public address active, positive
acknowledgment
GREEN - FLASHING (slow)
Public address denied due to short
circuit
AL1+2
RED - OFF
Port is calibrated no fault
RED - FLASHING (slow)
Measurement disabled due to
insufficient load. (<2,5W)
AL1
RED - FLASHING (slow)
Measurement disabled due to
excessive load (>150W) or no
signal from TG01.
RED - ON
Impedance error detected
(Tolerance exceeded)
