Panel Microphone Input

Input Type: Electret

Input Impedance: >=2K

Mic Limiter Threshold: -2dBu ±3dB

Mic Limiter Range: >= 15dB

Headset Microphone Input

Input Type: Dynamic

Input Impedance: >= 1K

Mic Limiter Threshold: -2dBu ± 3dB

Mic Limiter Range: >= 15dB

Program Line Input

Maximum Level before Clipping: >= 20dBu

Input Impedance: >= 5K

Headset Output

Load Impedance: >= 8

Output Impedance: <= 25

Output Limiter Threshold: +5dBu ± 3dB

Maximum Output Level before Distortion: >= 17dBu

Speaker Output

Load Impedance: >= 4

Max Output Level before 1% Distortion: 20dBu ± 2dBu

Partyline Output

Off Noise: < -74dBu

Output Impedance: >10K

Partyline Input

Crosstalk: < -60dB

Max level before Clipping: >= 12dBu

Sidetone Null Capability: > 25dB

Frequency Response

Panel Mic – Partyline: 300 – 16kHz ± 3dB

Mic – Partyline: 300 – 15kHz ± 3dB

Program Input – Headset Out: 200 – 18kHz ± 3dB

Program Input – Speaker Out: 200 – 18kHz ± 3dB

Partyline- Headset Out: 200 – 18kHz ± 3dB

Partyline- Speaker Out: 200 – 18kHz ± 3dB

Max Distortion

Panel Mic – Partyline: <= 0.5%

Headset Mic – Partyline: <= 0.5%

Program Input – Headset Out: <= 0.2%

Program Input – Speaker Out: <= 0.5%

Partyline- Headset Out: <= 0.2%

Partyline – Speaker Out: <= 0.5%

Noise

Panel Mic – Partyline: < -65dBu

Headset Mic – Partyline: < -70dBu

Program Input – Headset Out: < -60dBu

Program Input – Speaker Out: < -60dBu

Partyline – Headset Out: < -50dBu

Partyline- Speaker Out: < -50dBu

Max Gain

Panel Mic – Partyline: >= 37dB

Headset Mic – Partyline: 41dB ± 2dB

Program Input – Headset Out: >= 18dB

Program Input – Speaker Out: >= 24dB

Partyline- Headset Out: >= 34dB

Partyline- Speaker Out: >= 40dB

Power

Input Voltage Range: 20-30V DC

Input Current (Idle): <= 90mA

Input Current (Max): <=110mA

Internal Adjustments and Connections

Intercom: Line Five terminal connector

Program Input: Three terminal connector

Option Switches: Three DIP switches

Call Signal Jumper 3: Three sets of options jumpers

Call Alert Tone Level Control: Level adjustment control

Environmental

32 – 122°F (0 – 50°C)

Dimensions

4.5 x 8.25 x 1.75in (HxWxD)

(114 x 210 x 44mm)

Weight

1.1lbs (0.50kg)