VARES-LOOP
Monitoring of ring bus and speaker lines
With the VARES LOOP system, you rely on a reliable and future-proof solution for voice alarm and public address systems. The system detects faults such as short circuits, interruptions or earth faults within seconds and automatically isolates the affected sections. This keeps your system operational even if parts of the cable routes fail.
Maximum safety through intelligent line monitoring
The key advantages at a glance
Certified safety
Meets EN 54-17 and VDE 0833-4Reliable operation
Fault detection and automatic isolationCost efficiency
Savings on E30 functional integrity cables
Flexibility
Particularly suitable for existing buildings and modular buildingsExpandable
Compatible with VARES-1500, VARES-2000 and VARES-3000
Ring bus isolator/module
The ring bus modules – TRT series
The modules of the TRT series reliably monitor speaker and ring bus lines, detect faults such as short circuits or earth faults, and therefore contribute to a safe and fault-resistant voice alarm and public address installation.
TRT series – ring bus isolator/module
| Power supply (via TRC-800A) |
19 - 30 V DC, nominal voltage 30 V DC | Current consumption | No-load current 100 μA continuous max. power consumption 20 mW |
| Control | 20 kHz / 7.5 Vrms | Control times | 0.3 sec. (fade in); 1.0 sec. (fade out) |
| Wiring | 2-wire, max. 2.5 mm²;
loop max. length 1,000 m Cable outer diameter max. 13 mm |
T-branch (end-of-line) |
max. 50 W / EoL = 47 kOhm; 0.25 W or higher |
| Speaker type | Only with DC blocking capacitor (TRK-001 A) | Detection - LOOP | Short circuit, interruption, earth fault |
| Surface mounting | Mounting on the speaker | Connections | 3-pin 5 mm WAGO plug-in terminal; Ring line input (L +, L-, GND) 0.8-2.5 mm2 Ring line output (L +, L-, GND) 0.8-2.5 mm2 Speaker (L +, L-, GND) 0.8-2.5 mm2 LED connection (L +, L-) 0.8-2.5 mm2 |
| Housing / protection rating | ABS, with transparent cover; IP 21C | Dimensions (W x H x D) | 110 x 130 x 55 mm |
| Weight | 150 g | Certification | EN54-17:2005 / 0560-CPR-142190002 |
The TRT-200 A ring bus isolator is a module certified according to EN 54-17 for monitoring speaker lines in electroacoustic emergency warning and voice alarm systems.
The ring bus isolators are linked in the speaker ring line and transmit audio signals from the voice alarm system and the ring bus controller to the speakers.
The ring bus isolator monitors the connection lines of the ring bus input, ring bus output and speaker connection for short circuits, interruptions and earth faults.
If a fault occurs, this information is immediately sent to the TRC-800 A ring bus controller. At the same time, the ring bus isolator initiates the required action, such as switching off the ring bus line on the short-circuit section. The ring bus indicator LED shows on which side of the ring bus isolator the fault source is located.
All speakers must always be connected via a DC blocking capacitor (TRK-001 A).
Features:
The ring bus isolators are linked in the speaker ring line and transmit audio signals from the voice alarm system and the ring bus controller to the speakers.
The ring bus isolator monitors the connection lines of the ring bus input, ring bus output and speaker connection for short circuits, interruptions and earth faults.
If a fault occurs, this information is immediately sent to the TRC-800 A ring bus controller. At the same time, the ring bus isolator initiates the required action, such as switching off the ring bus line on the short-circuit section. The ring bus indicator LED shows on which side of the ring bus isolator the fault source is located.
All speakers must always be connected via a DC blocking capacitor (TRK-001 A).
Features:
- Find and isolate short circuits in adjacent speaker lines.
- Find and isolate interruptions, short circuits and overloads at branch points.
| Power supply (via TRC-800A) |
19 - 30 V DC, nominal voltage 30 V DC | Current consumption | No-load current 100 μA continuous max. power consumption 20 mW |
| Control | 20 kHz / 7.5 Vrms | Control times | 0.3 sec. (fade in); 1.0 sec. (fade out) |
| Wiring | 2-wire, max. 2.5 mm²;
loop max. length 1,000 m Cable outer diameter max. 13 mm |
T-branch (end-of-line) |
max. 50 W / EoL = 47 kOhm; 0.25 W or higher |
| Speaker type | - | Detection - LOOP | Short circuit, interruption, earth fault |
| Surface mounting | Mounting on the speaker | Connections | 3-pin 5 mm WAGO plug-in terminal; Ring line input (L +, L-, GND) 0.8-2.5 mm2 Ring line output (L +, L-, GND) 0.8-2.5 mm2 Speaker (L +, L-, GND) 0.8-2.5 mm2 2 x changeover contact (MIN, MAX, OUT) 0.8-2.5 mm2 |
| Housing / protection rating | ABS, with transparent cover; IP 21C | Dimensions (W x H x D) | 110 x 130 x 55 mm |
| Weight | 160 g | Certification | EN54-17:2005 / 0560-CPR-142190002 |
The TRT-400 A connection unit for speakers with volume control is a module certified according to EN 54-17 for use in electroacoustic emergency warning and voice alarm systems.
The connection unit does not have an isolating function and is therefore always used between two isolators (TRC-800 A or TRT-200 A).
The TRT-400 A ring bus module with 60 W volume control can be used for two applications:
1. Individual adjustment: to individually adjust the volume of subordinate background sound reinforcement.
2. Separate 100 V programme: to play a separate background sound programme via the connected speaker circuit.
In both cases, the volume control is bypassed in the event of an alarm or during priority announcements. Power supply and control are then provided via the higher-level speaker ring bus line.
Features:
The connection unit does not have an isolating function and is therefore always used between two isolators (TRC-800 A or TRT-200 A).
The TRT-400 A ring bus module with 60 W volume control can be used for two applications:
1. Individual adjustment: to individually adjust the volume of subordinate background sound reinforcement.
2. Separate 100 V programme: to play a separate background sound programme via the connected speaker circuit.
In both cases, the volume control is bypassed in the event of an alarm or during priority announcements. Power supply and control are then provided via the higher-level speaker ring bus line.
Features:
- Find and isolate short circuits in adjacent speaker lines.
- Find and isolate interruptions, short circuits and overloads at branch points.
- Individual volume adjustment in rooms.
- Playback of a separate 100 V programme via the connected speaker line.
| Power supply (via TRC-800A) |
19 - 30 V DC, nominal voltage 30 V DC | Current consumption | No-load current 100 μA continuous max. power consumption 20 mW |
| Control | 20 kHz / 7.5 Vrms | Control times | 0.3 sec. (fade in); 1.0 sec. (fade out) |
| Wiring | 2-wire, max. 2.5 mm²;
loop max. length 1,000 m Cable outer diameter max. 13 mm |
Relay contact (2 x) | max. 250 V AC / 8 A (dual-state type) |
| max. AC switching load | 1800 W (230 V AC / 8 A) | Detection - LOOP | Short circuit, interruption, earth fault |
| Surface mounting | Mounting on the speaker | Connections | 3-pin 5 mm WAGO plug-in terminal; Ring line input (L +, L-, GND) 0.8-2.5 mm2 Ring line output (L +, L-, GND) 0.8-2.5 mm2 2 x changeover contact (NO, COM, NC) 0.8-2.5 mm2 – |
| Housing / protection rating | ABS, with transparent cover; IP 21C | Dimensions (W x H x D) | 110 x 130 x 55 mm |
| Weight | 150 g | Certification | EN54-17:2005 / 0560-CPR-142190002 |
The TRT-300 A ring bus module is an emergency switching unit and not a ring bus isolator. It is looped into the ring bus in order to automatically switch off subordinate sound reinforcement in the event of an alarm or emergency announcement.
The ring bus module has two potential-free changeover contacts (230 V AC / 8 A). For example, in the event of an alarm, the first relay contact can switch on flashing lights and the second relay contact can switch off the speakers. This allows priority circuits to be activated via the 100 V speaker line. These are required when priority alarms or announcements need to be played into the affected area.
Power is supplied via the ring line. A capacitor charged by the ring bus controller stores enough energy for at least two emergency cycles.
Features:
The ring bus module has two potential-free changeover contacts (230 V AC / 8 A). For example, in the event of an alarm, the first relay contact can switch on flashing lights and the second relay contact can switch off the speakers. This allows priority circuits to be activated via the 100 V speaker line. These are required when priority alarms or announcements need to be played into the affected area.
Power is supplied via the ring line. A capacitor charged by the ring bus controller stores enough energy for at least two emergency cycles.
Features:
- Two potential-free high-current relay contacts (230 V AC / 8 A) for automatically interrupting the subordinate local programme, for example for emergency announcements.
- Power is supplied via the ring line. Stores energy for at least two emergency cycles.
- In addition to priority switching, additional attention indicators such as flashing lights can also be switched.
NCC-2000 A
| Lautsprecherkreise erweiterbar (mit NLE-406 A) | 6 bis 1.440 Einzelkreise (gruppiert in max. 255 virtuelle Rufgruppen) |
| Anschlüsse | 1x AMP-Verbindung (NDA-1000 A), 2x Global-Network, 3x Local-Network |
| Eingangskontakte (überwacht) | 16x Eingänge (mit NIM-116 A erweiterbar) |
| Audioeingänge | 2x BGM (analog) symmetrisch 0dBu (mit NIM-116 A erweiterbar) |
| Ausgangskontakte | 1x Alarm-, 1x Fehlerkontakt (Relais), 8x Pflichtrufausgang (open collector) |
| Sprachspeicher | 22 Durchsagetexte á 5 min. (17 frei) |
| Frequenz (Local-Network) | 50 - 20.000 Hz (-3 dB) |
| Frequenz (Global-Network) | 100 - 12.000 Hz (-3 dB) |
| Signal-Rauschabstand | besser als 90 dB |
| Klirrfaktor (THD) bei 1 kHz | ± 0,05% |
| Spannungsversorgung | 24V DC / 300 mA |
| Abmessungen (BxHxT) | 483 x 44,2 x 365 mm; 1 HE |
| Gewicht | ca. 2,5 kg |
Das Control-Center ist das Herzstück des VARES-2000 Systems. Es verwaltet alle Funktionen einer SAA, eingehende Informationen und Audiosignale. Entsprechend den Anforderungen steuert es die Netzwerk-Verstärker, die A/B-Kanäle und die überwachten Linienerweiterungen. Dies beinhaltet auch die Verwaltung von Audiostreams, die vom Netzwerk kommen.
Das VARES-2000 Control-Center verarbeitet die Eingänge entsprechend ihrer eigenen Signalprioritätstabelle und verteilt das Audiosignal über das digitale AMP-Link-Modul, das zwei priorisierte Streams über eine dynamische Zuweisungstechnik verwaltet, an maximal 16x Verstärker NDA-1000 A pro Control-Center.
Die ferngesteuerten, überwachten Linienerweiterungen (NLE-406A) arbeiteten direkt mit dem NCC-2000 A. Diese Einrichtungen leiten die Audiosignale von den A/B-Kanälen des Verstärkers in die erforderlichen Lautsprecherbereiche oder Zonen.
Zwei gleichzeitige Audiosignale werden über eine erweiterbare Schaltmatrix verwaltet. Dies kann von mindestens 6 Lautsprecherlinien bis zu einem Maximum von 1.440 Lautsprecherlinien reichen, die in maximal 255 virtuelle Rufzonen gruppiert werden können.
Der Controller besitzt überwachte GPI- und unüberwachte GPO-Schnittstellen, globale und lokale Netzwerkports. Die überwachte AMP-Verbindung kommuniziert über den VARES-2000 Datenbus mit den Verstärkern NDA-1000 A.
Das VARES-2000 System verwendet die selbe Konfigurationssoftware wie auch das VARES-1500 System, wodurch sich die Verknüpfung beider Systeme einfach und unkompliziert darstellt.
Merkmale:
Das VARES-2000 Control-Center verarbeitet die Eingänge entsprechend ihrer eigenen Signalprioritätstabelle und verteilt das Audiosignal über das digitale AMP-Link-Modul, das zwei priorisierte Streams über eine dynamische Zuweisungstechnik verwaltet, an maximal 16x Verstärker NDA-1000 A pro Control-Center.
Die ferngesteuerten, überwachten Linienerweiterungen (NLE-406A) arbeiteten direkt mit dem NCC-2000 A. Diese Einrichtungen leiten die Audiosignale von den A/B-Kanälen des Verstärkers in die erforderlichen Lautsprecherbereiche oder Zonen.
Zwei gleichzeitige Audiosignale werden über eine erweiterbare Schaltmatrix verwaltet. Dies kann von mindestens 6 Lautsprecherlinien bis zu einem Maximum von 1.440 Lautsprecherlinien reichen, die in maximal 255 virtuelle Rufzonen gruppiert werden können.
Der Controller besitzt überwachte GPI- und unüberwachte GPO-Schnittstellen, globale und lokale Netzwerkports. Die überwachte AMP-Verbindung kommuniziert über den VARES-2000 Datenbus mit den Verstärkern NDA-1000 A.
Das VARES-2000 System verwendet die selbe Konfigurationssoftware wie auch das VARES-1500 System, wodurch sich die Verknüpfung beider Systeme einfach und unkompliziert darstellt.
Merkmale:
- Audio-Matrixfunktion mit DSP
- Bis zu 255 Netzknoten pro System mit Peer-to-Peer-System-Redundant (Ringtechnologie)
- Netzspannungs- und Batterieüberwachung
- Unterstützt Loop-Technik und EOL (End-of-Line)
- Verstärker- und Mikrofonüberwachung
- Text-Modul & digitaler Sprachspeicher
- Prioritätskanal mit zweitem und/oder Backup-Kanal
- 16 überwachte oder unüberwachte Eingänge, frei konfigurierbar über Software
Ring bus controller
The central unit – TRC-800 A
The central ring bus controller continuously monitors all connected modules and speaker circuits. This ensures that your system remains fully operational even under difficult conditions.
TRC-800 A – ring bus controller
| Power supply | 18 - 36 V DC, nominal voltage 24 V DC | Current consumption (@ 200 TRT-XXX full load) |
No-load current 100 mA continuous max. power consumption 2.4 W |
| AC voltage | max. cont. 100 Vrms | AC current | max. cont. 5 A |
| AC frequency range | 40 Hz - 20 kHz (-3 dB) | DC voltage | 30 V |
| DC current | max. cont. 130 mA | Total LOOP load | max. 500 W |
| LOOP wiring | 2-pole, max. 2.5 mm2 / max. loop length: 1,000 m | Loop relay contact | max. 250 V AC / 8 A (dual-state type) |
| Bus address range | 00 - FF (0-255) / max. 32 on single DIN rail | Detection - LOOP | Short circuit, interruption, earth fault |
| Maximum number of ring bus modules | 200 units | Connections | 1 x 5-pin DIN rail bus connector; 2 x 3-pin screw terminal; 1 x 2-pin screw terminal |
| Housing / protection rating | ABS, DIN rail mounting; IP 30 | Dimensions (W x H x D) | 17.5 x 114.5 x 99 mm, 1 HP |
| Weight | 210 g | Certification | EN 54-17:2005, NEN2575-2 |
The TRC-800A ring bus controller is the central unit in the VARES LOOP system. The controller is positioned between the power amplifiers and the speaker line. It supplies the ring bus modules, such as the TRT-200 A, with voltage and handles monitoring and data exchange between the ring bus modules and the electroacoustic warning system (ENS or VAS).
The ring bus modules can be switched to different modes via the ring bus controller operating software:
Service mode: Service mode is used for setting up and commissioning the VARES LOOP system.
Tracking mode: During tracking, the software determines which ring bus isolator has detected a fault.
Features:
The ring bus modules can be switched to different modes via the ring bus controller operating software:
Service mode: Service mode is used for setting up and commissioning the VARES LOOP system.
Tracking mode: During tracking, the software determines which ring bus isolator has detected a fault.
Features:
- The TRC-800A controller monitors whether a power amplifier is connected.
- Monitoring of the connected lines for earth fault, short circuit and interruption.
- A speaker group may provide sound reinforcement for an area of max. 1,600 m2 and must not exceed one fire compartment.
- If a fault occurs, the fault signalling contact is activated and the following operating states are displayed:
– Ring bus short circuit
– Ring bus earth fault
– Ring bus interruption
– Amplifier input open
– Amplifier input earth fault
NDA-1000 A
| Ausgangsleistung | 2x 720/500 W (Programm/RMS) |
| Ausgangslast | 4Ω min.; 20Ω @Ausgangsleistung |
| Eingangsempfindlichkeit | max. 775 mV (RMS) / 0dBu symmetrisch |
| Ausgangsspannung | 100 V |
| Frequenzbereich | 3 ~ 35.000 Hz (besser -3 dB) |
| Signal-Rauschabstand | besser als 90 dB |
| Klirrfaktor (THD) bei 1 kHz | besser als 0,1% |
| Übersprechen (20 Hz – 20 kHz) | < -100 dB |
| Leistungsaufnahme | max. 1350 W |
| Einschaltstrom | max. 6A @ 230V AC |
| DC Stromaufnahme | max. 45A @ 24V DC |
| Leerlauf | 24 W (aktiv) / 0.9 W (standby) |
| Leerlaufstromaufnahme (DC) | 1 A (aktiv) / 34 mA (standby) |
| Wirkungsgrad | 89% @ 230V AC / 93% @ 24V DC |
| DC Ausgang (ext. Geräte) | max. 60W / 2A |
| Ladespannung | max. 27.9V DC |
| Ladestrom | max. 4A |
| Abmessungen (BxHxT) | 483 x 88,5 x 350 mm; 2 HE |
| Gewicht | ca. 16,5 kg |
Der Network Digital Power Amplifier bietet eine leistungsstarke Audioverstärkung nach EN 54-16 und eine integrierte Notstromversorgung nach EN 54-4.
Der Leistungsverstärker liefert konfigurationsabhängig 2x 500 W Ausgangsleistung und ist in einem 19˝-Rackgehäuse mit 2 HE untergebracht. Er unterscheidet sich von herkömmlichen Leistungsverstärkern durch seine volldigitale Systemarchitektur und seine drei redundant ausgelegten Netzteile.
Es können mehrere NDA-1000 A Verstärker an einem Akkusatz zusammen geschaltet werden. Das aktive Ladegerät lädt den Akkusatz, der die Backup Spannungsversorgung bildet. Zusätzlich steht auch ein externer 24V-Anschluss zur Versorgung von Zusatzbaugruppen zur Verfügung.
Merkmale:
Der Leistungsverstärker liefert konfigurationsabhängig 2x 500 W Ausgangsleistung und ist in einem 19˝-Rackgehäuse mit 2 HE untergebracht. Er unterscheidet sich von herkömmlichen Leistungsverstärkern durch seine volldigitale Systemarchitektur und seine drei redundant ausgelegten Netzteile.
Es können mehrere NDA-1000 A Verstärker an einem Akkusatz zusammen geschaltet werden. Das aktive Ladegerät lädt den Akkusatz, der die Backup Spannungsversorgung bildet. Zusätzlich steht auch ein externer 24V-Anschluss zur Versorgung von Zusatzbaugruppen zur Verfügung.
Merkmale:
- Digitaler Leistungsverstärker mit integrierter Notstromversorgung. Das skalierbare Batterieladegerät verfügt über einen Temperatursensor und ist gemäß EN54-4 zertifiziert.
- Anzeigen: Power; Link; Battery; Charger, Fehlermeldung CH A SIG / CLIP; CH B SIG / CLIP
- Folgende Anschlüsse stehen zur Verfügung: 2x Globaler Netzwerkanschluss (AmpLink), 2x 500 W Leistungsausgänge
- Akkusatz-Anschluß und 24 V DC Ausgang für externe Komponenten.
- Der Verstärker verfügt über zwei BGM-Eingänge für den Stand-Alone Betrieb und einen AUX-Eingang (Mono, symmetrisch) oder 2-Kanalbetrieb Stereo (unsymmetrisch), jeweils (analog) 0dBu.
- Netzfehlerüberwachung mit Umschaltung auf Notstrombetrieb.
- Überwachung von Akkufehlern (mit Innenwiderstands-Messung).
- Überwachung der Leistungsausgänge.
Educational Institutions
Public Building
Shopping Centres
Industry & Manufacturing
Areas of application
The system offers decisive advantages in areas where reliable evacuation and alarm notification technology is essential:
- Schools & universities: Reliable emergency announcements at all times
- Hotels & office buildings: Reliable background music and evacuation announcements
- Public facilities: Maximum safety during evacuations
- Event venues: Clear announcements even in the event of faults in the line system
For specialist planners and engineering firms
Flexible planning options
for functional integrity in unfavourable building structures (existing buildings, modular buildings)
Significant cost reduction
by reducing the need for E30 functional integrity cables
Individual speaker monitoring
possible if required
Fail-safe shutdown of third-party systems
via existing ring line
Compatible with our voice alarm systems
VARES-1500, VARES-2000 and VARES-3000
VARES LOOP from RCS
With VARES LOOP, you invest in a reliable, future-proof system that not only guarantees the operational reliability of your system, but also reduces installation and maintenance costs. Thanks to automatic fault localisation, faults can be rectified immediately before a complete failure occurs.