INTRON-D Functions Direct Two-Way Communication ... - Industronic

INTRON-D Functions
Direct Two-Way Communication (pre-defined)
Definition
A communication link to a pre-defined target station is established by pressing a single direct dial key.
General
INDUSTRONIC communication systems are used in the industrial sector primarily to transmit process
relevant information (process control instructions). A clearly defined communication structure is required
for this type of communication. The direct two-way communication function is ideal to meet this
requirement.
ABC…
Press a pre-defined key and speak into
the microphone.
The message is heard and the calling station
is identified by the flashing LED on the key.
Description
A pre-defined half-duplex connection (HDX connection) between two intercom stations is used for this
type of communication. Communication is carried out directly and immediately between these stations.
You can directly talk to the target station by pressing a key. The connection, which is established
immediately, is displayed at the target station by the LED assigned to the corresponding key.
Disciplined speaking ensures clear and intelligible communication.
Direct two-way communication uses an exclusive connection. It is, however, possible to assign priorities
to a link.
Doc. No. FDA-330-001-452 • Rev. 3 • EN • 13.12.2010
© INDUSTRONIC 1 / 5
Subject to technical modification

Example 1: System Arrangement
The following figure (Fig. 1) shows a basic system consisting of 5 intercom stations. Pre-defined direct
half-duplex connections are displayed graphically for a better understanding.
Example: Station 1
Location = “Factory”
HDX connection to station 2, 3, and 5
Example: Station 2
Location = “Warehouse”
HDX connection to station 1 and 5
Station 4
Workshop
Station 5
Control Room
Station 1
Factory
Station 3
Supervisor
Station 2
Warehouse
= Direct two-way communication
Fig. 1 System arrangement of a basic intercom station
Doc. No. FDA-330-001-452 • Rev. 3 • EN • 13.12.2010
© INDUSTRONIC 2 / 5
Subject to technical modification

Operation
Function of the double rocker switch for the weatherproof / explosion-proof intercom stations. With the
double rocker switch shown in figure 2, two direct two-way connections can be realized.
Example: Station 2
Location = “Warehouse”
Connection to station 1 “Factory” and to station 5 “Control Room”
At the desktop intercom model, key functions and signals are identical.
1. Labeling field for the
target station
Control Room
Factory
2. LED for signaling
3. Double rocker
switch
Fig. 2 Double rocker switch of Station 2 “Warehouse”
1. Labeling field = shows the called intercom station, e.g. “Control Room”, which will be called using this
key according to the programming of the central exchange unit
2. LED for signaling = signaling of system conditions
Key not pressed
• Off = Target station “Control Room” is free
• On = Target station “Control Room” is busy, i.e. the called station is speaking to another station within
the system
• Flashing = Incoming call from the intercom station “Control Room”
Key pressed
• Permanent light = HDX connection established to “Control Room”
3. Double rocker switch = by pressing the key a connection to the intercom station “Control Room” is
established
Doc. No. FDA-330-001-452 • Rev. 3 • EN • 13.12.2010
© INDUSTRONIC 3 / 5
Subject to technical modification

Example 2: Direct two-way communication (Station 1 to Station 5)
Station 1 "Factory"
Station 5 "Control Room"
ABC…
The operator of station 1 presses the
"Control Room" key and speaks into the
microphone.
The operator of station 5 hears the
message from the "Factory" via the
loudspeaker. The LED is flashing on the
"Factory" key.
Fig. 3 Direct two-way communication from Station 1 "Factory“ to Station 5 "Control Room“
Example 3: Direct two-way communication (Station 5 to Station 1)
Station 1 "Factory"
Station 5 "Control Room"
ABC…
The operator of station 1 hears the
message from the “Control Room” via
the loudspeaker. The LED is flashing on
the “Control Room” key.
The operator of station 5 presses the
“Factory” key and speaks into the
microphone.
Fig. 4 Direct two-way communication from Station 5 “Control Room” to Station 1 “Factory”
Doc. No. FDA-330-001-452 • Rev. 3 • EN • 13.12.2010
© INDUSTRONIC 4 / 5
Subject to technical modification

Benefits
Direct two-way communication is the basic requirement for industrial communication systems.
• Direct and immediate communication (push-to-talk)
• Disciplined interaction allows clear communication
• Clear audio (no acoustic feedback, individual call station can be adjusted to ambient noise levels)
• Exclusive connections (no distraction for parties not involved)
• Priorities can be assigned for increased safety and security
INDUSTRONIC ®
Industrie-Electronic GmbH & Co. KG
Carl-Jacob-Kolb-Weg 1
97877 Wertheim / Germany
Tel.: +49 9342 871-0
Fax: +49 9342 871-565
info@industronic.de
www.industronic.com
Doc. No. FDA-330-001-452 • Rev. 3 • EN • 13.12.2010
© INDUSTRONIC 5 / 5
Subject to technical modification