NHT Page/Multi-Party Communication System
Specifications
| Description |
Parameter |
| Supply voltage |
The supply voltage of the system is AC200V-250V (or AC110V)/50Hz-60Hz or DC24V/4A (it depends on different configurations). If connect the unit to AC power or DC power at the same time, AC power is preferable. Shift frequency is 500-800ms. Power supply model : NHT-220 |
| Speaker amplifier |
25W/16Ω outdoor speaker amplifier. Model : YH25-3 (complete with NHT-3 master station) |
| - |
10W/6Ω indoor speaker amplifier. (complete with NHT-1 indoor extension and NHT-3 master station) |
| - |
10W/8Ω outdoor speaker amplifier . Model : YH10-2 (complete with NHT-2 outdoor extension) |
| Nos. of phone station |
Support up to 6 sets extension, Max. up to 10 sets (Extra power supply is needed in case of supporting more than 6 sets extension) |
| Circuit balance |
Self-adaptable |
| Communication distance |
>1Km |
| Frequency bandwidth |
300Hz~3700Hz |
| Distortion rate |
≤ 10% |
| Ambient temperature |
-20℃~+50℃ |
| Relative humidity |
95±3% |
| Operation mode |
Continuous operation |
Functions & Features
- This communication system is powered by AC200V-AC250V (or AC110V) / 50Hz-60HZ or DC24V/4A. AC power is preferable. In case of power failure, the system also can work through built-in battery.
- Handset and speaker are both cooperated into indoor extension, providing good appearance, sound construction, and ease of mount and operation. Outdoor extension employs stainless steel enclosure with powdercoat paint finishes, and complete with a lock. All these ensure that it can withstand the harsh effect of the environment.
- Any extension can make an announcement.
- PAGE function can also be implemented without reliable hanging up the phone.
- Built-in anti-interference circuit ensures two-way conversation can occur without any noise in harsh environment. LED display shows operation status, convenient for use.
- The system is connected together using a five-core shielded cable, convenient for wiring. Adjust speaker output volume according to the background noise.
- It features telephone communication and broadcasting. It can provide smooth communication between two or several extensions. The user can also make an announcement to the whole area.
Note
- It is suggested to use shielded cable more than 5X1.5mm2.
- It is suggested to use shielded cable more than 0.75mm2 as S1, S2 signal cable, and signal cable should be grounded securely
- In case the power is supplied by NHT220, the cross-section of control cable should be more than 1.5mm2
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NHT Page/Multi-Party Communication System
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