HEADSET No. 4


Headset No. 4 (Auralite 2) and Headset No. 4A (Auralite 2 Executive) are similar in appearance to the Headsets No. 3 and 3A, but use an improved amplifier with a three position switch to control the volume of incoming calls.

Superseded on BT by the Headset No. 5 (Auralite Supra), Headset No. 5A (Auralite Supra Executive) and Headset No. 5B (Auralite Supra Executive fitted with a plug 430).

Made by Plantronics.

APPROVAL STATUS
HS 4 & 4A - Approval Number S/1689/23/J/501084
Headsets No. 4, 4A, 5, 5A and 5B are only approved for use with systems where the headsets are quoted in the system PXML as an approved attachment.


PARTS

Description BT Item Code
Headset No 4 (Plug 420) 87 0082
Headset No 4A (Plug 420, Quick release jack) 87 0083
Spectacle Clip 104A (HS3, 3A, 4 & 4A) 43 5830
Tube Voice I A (HS 3, 3A, 4, 4A, 5, 5A & 5B) 43 5833
Tube Voice 2A (HS 3, 3A, 4, 4A, 5, 5A & 5B) 43 7292
Earpiece Set 1A 66 different sizes (HS 3, 3A, 4 & 4A) 43 5823
Earpiece 28A/1 (Size 1) (HS 3, 3A, 4 & 4A) 43 5824
Earpiece 28A/2 (Size 2) (HS 3, 3A, 4 & 4A) 43 5825
Earpiece 28A/3 (Size 3) (HS 3, 3A, 4 & 4A) 43 5826
Earpieces 28A/4 (Size 4) (HS 3, 3A, 4 & 4A) 43 5827
Earpieces 28A/5 (Size 5) (HS 3, 3A, 4 & 4A) 43 5828
Earpieces 28A/6 (Size 6) (HS 3, 3A, 4 & 4A) 43 5829


ADDITIONAL INFORMATION

1. Headset energising current - all headsets 7.5 to 100mA.

2. It was anticipated that about June 1989 a new telephone complete with headset would be introduced.

 

 
 
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Last revised: December 19, 2010

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