Nittan Evolution Addressable Ceiling / Wall Mounted Sounder (EV-SDR)

The Nittan EV-SDR (part no. F16-82110) is an analogue addressable sounder for Nittan Evolution fire alarm systems. It is a Type A indoor sounder, powered and controlled from the Evolution loop, and replaces the earlier EV-ABS sounder.

It uses the Evolution FSK protocol and is EEPROM addressed with a programmer. It is a stand-alone device and is not designed to be fitted with a detector.

Key features

• 12 tones selected by DIP switch (3 approved tones)
• Evolution FSK protocol
• EEPROM addressed with a programmer
• Replaces the EV-ABS sounder
• Stand-alone device, not for use with a detector

Technical specifications

• Sounder: piezo, 73 to 88 dB(A) at 90° / 1 m
• Tones: 12, selected by DIP switch (3 approved)
• Operating voltage: 24 to 38 V DC (35 V DC system voltage)
• Quiescent current: 200 µA
• Sounder operating current: 4 mA (low), 6 mA (high)
• Operating temperature: -10°C to +55°C
• Relative humidity: up to 95% RH, non-condensing
• Ingress protection: IP21C
• Addressing: soft addressing, non-volatile EEPROM
• Material: ABS
• Dimensions: Ø115 x 30.91 mm
• Mass: 200 g
• Standard: EN 54-3:2001 + A1:2002 + A2:2006
• Manufacturer part number: F16-82110