详情描述

The HCD68TSD Low Radiation Telephone is a government-exclusive model focusing on simplicity and practicality, commonly used as a wired communication terminal. It is primarily used for equipping military and local party and government special networks. Suitable for programmed, automatic, and common battery telephone exchanges, it features excellent voice transmission quality, high reliability, lightning protection, and low electromagnetic leakage.



Features：

Primary Functions

Compatible with FSK/DTMF incoming call display standards.

3 ringtone tones to choose from, with options for loud, soft, or off.

Call: Up to 62 groups of 8 digits

Phone Calls: Up to 16 groups of 8 digits, dynamic storage available, up to 32 digits in total.

10 sets of 16-bit single key memory, non-volatile upon power loss.

5-digit area code, caller ID blocking, 2-digit outgoing code

Hands-free volume adjustable

Flash function. FLASH time options: 1000ms/600ms/300ms/110ms

A set of alarm clock features

Call back for incoming and outgoing calls

Keep Function, Mute Function

New power-on indicator

Date, clock, and call timer functions;

 

Key Performance Indicators (KPIs)

Terms of Use

Ambient Temperature: -10℃ to 40℃

Relative Humidity: 10% ~ 95%

Atmospheric Pressure: 86kPa ~ 106kPa

Environmental Noise: ≤60 dB(A)

 

Key Technical Parameters

Electro-acoustic Parameters (5km): Sound Level Rating (SLR) ≤ 15 dB

Receive Loudness Rating (RLR) ≤ 2 dB

Side Tone Masking Rating (STMR) ≥ 12 dB

Stable Balance Return Loss (2km): ≥15dB

Echo Balance Return Loss (2km): ≥17dB

Transmission and reception of non-linear distortion: ≤7%

Direct Current Resistance: ≤350Ω

Ringing Level: High gear ≥70dB(A), Low gear <67dB(A)

Wiring resistance: ≤350Ω

Dual-Tone Multi-Frequency Signal Level: Low Frequency Component -9dBm ±3dB

High Frequency Power Level -7dBm±3dB

The high-frequency component level is 2dB ±1dB higher than the low-frequency component level.

Receive caller ID FSK signal:

-37dBm to -6dBm

Average Mean Time Between Failures (MTBF): ≥5000h

Power Source: 3 AA Batteries

Dimensions: 228mm x 180mm x 102mm