4Zza - Procom DVS-21 User Manual

User Guide
DVS-21

7.8 4ZZA

Connection module for two exchanges, analog, 4-fold, with level adjustment of the systems.
Controlling is done by a switching a control voltage on the line. The polarity distinguishes between call
and busy.
Level incoming AF input gain (from the external device to the module)
Level outgoing AF output attenuation (from module to external device)
Line function:
Port 1 - 4:
Line 1 <-> Call line
Line 2 <-> Busy Line
Display and control elements:
LEDs
GREEN - ON
GREEN - FLASHING Outgoing connection is active
GREEN - OFF
GREEN - ON
X
GREEN - FLASHING busy flag on
Backplane connectors:
La/Lb Line
02/2018 • V.1.0 • L. Wolle
© 2017 ProCom
Polarity on the line: La/Lb =
+/-
Polarity on the line: La/Lb = -
/+
Incoming connection is active
Idle state
Remote station is busy
®
Professional Communication & Service GmbH • Technical changes reserved.
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