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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

Frequency Response

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

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

Headset Mic – Partyline:

 < -70dBu

Program Input – Headset Out:

 < -60dBu

Program Input – Speaker Out:

 < -60dBu

Partyline – Headset Out:

 < -50dBu

Partyline- Speaker Out: 

< -50dBu

Max Gain

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:

 20-30 VDC

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 Jumper3:

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

0.99lb (0.45kg)