The TRC-800A Ringbus Controller is the central control unit in the VARES-LOOP system, positioned between power amplifiers and speaker lines. It supplies connected Ringbus modules – such as the TRT-200A – with power, monitors line status, and manages the data exchange between Ringbus components and the electroacoustic emergency warning system (ENS or SAA).

With the included Ringbus Controller software, modules can be operated in two modes: the Service Mode for setup and commissioning of the system, and the Tracking Mode to pinpoint which Ringbus isolator has detected a fault.

Thanks to its slim DIN rail design (just 1 module width), the TRC-800A is easy to integrate into control cabinets. It reliably detects various fault conditions – such as ground fault, short circuit, open line, or disconnected amplifier input – and activates the fault relay in case of errors.

Technical Specifications (English):

Model:

• TRC-800A

Power Supply:

• 18 – 36 V DC (Nominal: 24 V DC)
• Idle Current: 100 mA
• Max. Power Consumption: 2.4 W

AC Characteristics:

• Max Voltage: 100 Vrms
• Max Current: 5 A
• Frequency Range: 40 Hz – 20 kHz (–3 dB)

DC Output:

• Voltage: 30 V
• Max Current: 130 mA

LOOP System:

• Max Total Load: 500 W
• Wiring: 2-wire, 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), up to 32 devices per DIN rail

Detection Functions:

• Short circuit, wire-to-wire, open circuit, ground fault

Max Ringbus Modules Supported:

• 200 units

Connections:

• 1x 5-pin DIN rail bus connector
• 1x 5-pin screw bus connector
• 2x 3-pin screw terminals
• 1x 2-pin screw terminal

Housing & Installation:

• Material: ABS
• Mounting: DIN rail
• Protection Class: IP30

Dimensions (W x H x D):

• 17.5 x 114.5 x 99 mm (1 module width)

Weight:

• 210 g

Certifications:

• EN 54-17:2005
• NEN2575-2

Special Features:

• Service and Tracking modes for setup and fault analysis
• Fault relay contact for error indication
• Space-saving DIN rail design
• Monitoring of amplifier and wiring conditions