HT-I
Hotline System with Normal Phones
Ring-down hotline for up to 4 desk phones on one pair
4 phonesSingle pair220 V AC
Hotline Systems
3 models · compare
Direct lines with no dialling: lift the handset and the other end rings or pages. Copper, PA-paging and single-mode fibre versions, all with a SMART controller.
Hotline Systems models
Filter3 shown
HT-A
Hotline PA Telephone System
Hotline where lifting one handset pages the other loudspeaker
Page on lift1 km loopBattery backup
HT-IP
Fibre-Optic Hotline Telephone System
Point-to-point ring-down hotline over single-mode fibre between two sites
Single-mode fibre10 km1310/1550 nm
Compare hotline systems
Differences first: interface, power, protection and output, then installation. Each model page has the full specification table.
3 of up to 4 hotline systems selected.
Comparing HT-I, HT-A, HT-IP
| Specification | HT-I Hotline System with Normal Phones | HT-A Hotline PA Telephone System | HT-IP Fibre-Optic Hotline Telephone System |
|---|---|---|---|
| Interfacediffers | Stand-alone | Stand-alone | Fibre |
| Power supplydiffers | 220 V AC (controller) | 220 / 110 V AC (controller and each hotline PA telephone) | 230 V AC |
| Cablediffers | Single pair wire | Single pair (2-core telephone cable) to controller; long loop up to 1 km of 2-core 0.5 sq mm | Not specified |
| Battery backupdiffers | Built-in, continuous online UPS | Online built-in | Not specified |
| Phonesdiffers | Up to 4 normal desktop phones | Two desktop hotline PA telephones | Not specified |
| Environment | Indoor | Indoor | Indoor |