TOA Electronics RS-144 Dual-Function IP Intercom Switch Panel

The TOA RS-144 is a versatile dual-function call button designed for reliable signaling in commercial, industrial, and institutional environments. Featuring both emergency (red) and normal (white) call-in switches, this unit provides clear, distinguishable alerts for critical and routine communications. Constructed with a stainless steel hairline plate and durable resin switches, the RS-144 combines long-lasting performance with high visibility for immediate recognition in urgent situations.

Designed to support long-distance communication, the RS-144 accommodates multiple wiring gauges and transmission ranges, delivering consistent signals up to 1.3 km (1421 yd) depending on cable thickness. The two-core shielded cable ensures interference-free operation, even in electrically noisy environments. Compact yet robust, this call button is ideal for wall panel or enclosure mounting in offices, factories, schools, hospitals, or other facilities requiring dependable signaling equipment.

Operating across a wide temperature range of 32 °F to 104 °F, the RS-144 maintains reliable performance in various indoor conditions. Its ergonomic design and included mounting hardware simplify installation, making it a professional and durable solution for integrating both emergency and normal call functions into intercom or paging systems.

Key Features

• Dual-function momentary call button for emergency (red) and normal (white) signaling
• Durable stainless steel plate with hairline finish
• High-visibility resin call-in switches for immediate recognition
• Supports long-distance transmission up to 1.3 km (1421 yd) depending on cable gauge
• Two-core shielded cable for interference-free operation
• Compact and easy-to-install design for wall panel or enclosure mounting
• Wide operating temperature range: 32 °F to 104 °F

Technical Specifications

Call Button: Momentary (EMERGENCY, NORMAL)
Wiring: Two-core shielded cable
Transmission Range: 0.5 km / 546 yd (Ø0.5 mm, AWG24), 0.8 km / 874 yd (Ø0.65 mm, AWG22), 1.3 km / 1421 yd (Ø0.9 mm, AWG19)
Operating Temperature: 32 °F to 104 °F (0 °C - 40 °C)
Finish: Plate: Stainless steel, hairline; Call-in Switch (emergency): Resin, red; Call-in Switch (normal): Resin, white
Dimensions: 2.76" x 4.53" x 1.13" (W x H x D)
Weight: 0.18 lb (80 g)