From OpenIPPBX Wiki

AH series headset is specially designed for ATCOM AT series IP phone with crystal voice quality and comfortable feeling.

Contents 1 AH011A 2 AH011B 3 AH012A 4 Pin Order

AH011A

Speakers

• sensitivity: 123±3dB(1KHZ under 178 MV)
• Speaker impedance: 132±5Ω(1KHZ)
• Frequency response: 100HZ-10KHZ
• Distortion: ≤5%(1KHZ under 178 MV)
• Ear-cap size: Φ30mm

Microphone

• sensitivity: –57±3dB(4.5V 2.2KΩ 1KHZ)
• Distortion: ≤5%(4.5V 2.2KΩ 1KHZ)
• Current: 100-500υA
• Microphone Size: Φ6×3.8mm

AH011B

Speakers

• sensitivity: 115±3dB(1KHZ under 178 MV)
• Speaker impedance: 150±15Ω(1KHZ)
• Frequency response: 100HZ-10KHZ
• Distortion: ≤3%(1KHZ under 178 MV)
• Ear-cap size: Φ40mm

Microphone

• sensitivity: –52±2dB( 2V 2.2KΩ 1KHz )
• Distortion: ≤5%( 2V 2.2KΩ 1KHz )
• current: 100-500υA
• Microphone Size: Φ6×3.8mm

AH012A

Speakers

• sensitivity: 110±3dB(under 178mV 1KHz)
• Speaker impedance: 150±15Ω(1KHZ)
• Frequency response: 100HZ-10KHZ
• Distortion: ≤3%(1KHZ under 178 MV)
• Ear-cap size: Φ30mm

Microphone

• sensitivity: –52±2dB( 2V 2.2KΩ 1KHz )
• Distortion: ≤5%( 2V 2.2KΩ 1KHz )
• current: 100-500υA
• Microphone Size: Φ6×3.8mm

Pin Order