RTS IFB325 IFB-325

RTS' IFB-325 is a listen-only IFB earset station with one channel. The IFB-325 provides a mono (either interrupt or non/interrupt selected at 4010) audio signal to the user. The IFB-325 features volume controls in an extruded aluminum case.

Specifications:

• Supplied Power Requirements: 32 VDC nominal (standard RTS line). 50 to 80 mA
• Dimensions: 5" (127 mm) high, 3.5" (88.9 mm) wide, 1.8" (45.7mm) deep
• Weight: 1.0 pounds (0.45 kg)
• Environmental Requirements:
  • Storage: -WC to 80T 0% to 95
  • Humidity: non-condensing
  • Operating: PC to 50T 0% to 95%
  • Humidity: non-condensing
• Earset: 150 to 600-1/2 headphones
• RTS Intercom Channel:
  • Input Level: 2 Vpp (0 dBu) nominal
  • Input Impedance: 200-1/2 ±5%
• Noise Contribution: Less than -60 db on the line
• Voltage Gain: 27 ±3 dB from the line
• Maximum Output: 165 mW into -1/2
• Frequency Response: 250 Hz to 8kHz +1/-4dB
• Headset Connector
  • Type: 1/4" Monaural Plug
  • Sleeve: Headset audio low
  • Tip: Headset audio high
• Intercom Channel Connectors
  • Type: XLR-3F
  • Pin 1: Common
  • Pin 2: Intercom channel 1 (audio and +32 VDC input)
  • Pin 3: Intercom channel 2 (audio)