 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Superseded on BT by the Headset No. 5 (Auralite Supra), Headset No. 5A (Auralite Supra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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