User Guide
DVS-21
02/2018
• V.1.0 • L. Wolle
46/131
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Professional Communication & Service GmbH • Technical changes reserved.
7.10 4IOS
Interface module, with floating in- and outputs.
The module has 4 ports, each with:
1 input (optocoupler)
1 input (optocoupler), debounced, for AF detection on 100V loudspeaker lines
1 output (relay with single-pole changeover switch)
The input optocouplers have a common base terminal (minus pole) for each port and may be switched
independently by means of the plus potential. The voltage range of the inputs ranges from 24V to a max.
of 60V.
The relay outputs may switch a max. of 1A at 80V DC or 0,8A at 125V AC.
Switching of large loads or
consumers at mains voltage (230V) may only take place if an additional external fuse is used.
Depending of the firmware of the module, the following operating modes are available:
Operation mode
Default
Acquisition of switching state, switching by means of relay, signaling by means of LED or loudspeaker
line (LL) switching and monitoring.
Line function:
Port 1 - 4:
Line 1 M -> CPU Optocoupler 1
Line 2 M -> CPU Optocoupler 2 (entprellt)
Line 3 CPU -> M Relay
Line 4 CPU -> M LED Al RED
Line 5 CPU -> M LED Al GREEN
If Lines 4 and 5 have the same state, LED Al is OFF!
Display and control elements:
LEDs
I GREEN - ON Input voltage at Optocoupler 1 detected
I/ GREEN - ON Input voltage at Optocoupler 2 detected
O GREEN - ON Output relays open
Al
RED - ON
Line 4 is switched on
GREEN - ON Line 5 is switched on
