WMHS-IIAD
Addressable PA Telephone
Stand-alone addressable PA phones, up to 9 sets on one loop
9 sets30 W amplifierNo exchange
HT-AHotline PA Telephone System
Hotline where lifting one handset pages the other loudspeaker
Page on lift1 km loopBattery backup
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- Category
- Hotline Systems
- Environment
- Indoor
- Interface
- Stand-alone
Ideal for
- Control room to field hotlines
- Industrial plants
- Posts up to 1 km apart
What it does
A hotline that does not wait for a ring. Lift one handset and the other unit goes straight into paging mode on its loudspeaker; lift the paged handset and the loudspeaker cuts out for a private call. Controller and phones both carry online battery backup.
- 01
Lift to page the other unit over its loudspeaker
- 02
Private mode as soon as the paged handset is lifted
- 03
Long loop: up to 1 km of 2-core 0.5 sq mm cable
- 04
Online battery backup in controller and phones
- 05
220/110 V AC
Specifications
Electrical · 2
| Power supply | 220 / 110 V AC (controller and each hotline PA telephone) |
|---|---|
| Battery backup | Online built-in |
Connectivity · 2
| Cable | Single pair (2-core telephone cable) to controller; long loop up to 1 km of 2-core 0.5 sq mm |
|---|---|
| Phones | Two desktop hotline PA telephones |
Compare with similar models
Differences first: interface, power, protection and output, then installation. Full specifications are in each model's table.
| Specification | HT-A Hotline PA Telephone System | HT-I Hotline System with Normal Phones | HT-IP Fibre-Optic Hotline Telephone System |
|---|---|---|---|
| Interfacediffers | Stand-alone | Stand-alone | Fibre |
| Power supplydiffers | 220 / 110 V AC (controller and each hotline PA telephone) | 220 V AC (controller) | 230 V AC |
| Cablediffers | Single pair (2-core telephone cable) to controller; long loop up to 1 km of 2-core 0.5 sq mm | Single pair wire | Not specified |
| Battery backupdiffers | Online built-in | Built-in, continuous online UPS | Not specified |
| Phonesdiffers | Two desktop hotline PA telephones | Up to 4 normal desktop phones | Not specified |
| Environment | Indoor | Indoor | Indoor |
Part of a system
Hotline network
Direct lines with no dialling, from control rooms to the posts that need an answer now. Three SMART hotlines cover one pair of copper, PA paging on pick-up, and single-mode fibre between sites.
Downloads
PDFSMART HT-A datasheet185 KBQuestions
How far apart can the phones be?
The controller supports a long loop of up to 1 km on 2-core 0.5 sq mm telephone cable.
Related models
All hotline systems →Need HT-A for a project?
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