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IP Phone Extensions
IP Phone Extensions

IP Phone Extensions

Item No.: YT-SG30 DL

Corrosion-resistant, anti-damage aluminum alloy die-casting shell, with magnetic gravity door cover, can completely prevent dust and moisture into the product, thus extending the life of the product, improve the reliability and stability of the product, special sealing design reaches IP68 protection standard, especially suitable for installation in high dust, humidity, noise, outdoor and other areas.

MOBILE: +86 018924638894


Product features

1.Robust aluminium alloy die-cast body,   good sealing; outdoor anti-ultraviolet powder coating, environmental protection, long-term outdoor exposure will not fade.

2.Anti-vandal handset, using imported PC and ABS synthetic materials, with stainless steel retractable hose. Internally designed with anti-destructive tensile steel rope, the tensile strength is 200KG or more. 

3.cover With magnetic attraction lock, orient automatically and good self - closing,water-proof & dusting proof

4.cover With magnetic attraction lock, orient automatically and good self - closing,water-proof & dusting proof 。

5.Waterproof glue: imported waterproof glue, high viscosity, high temperature resistance, high pressure, waterproof life of more than 10 years. 

6.Full keypad with memory, 10 button programmable speed-dial telephone.

7.All accessories such as handle transmitter/receiver, keyboard, circuit board, shell, etc. adopt multi-layer waterproof and dustproof structure. Reach IP68 protection standard.

8.With off-hook auto-dial function for quick alarm.

9.Wall Mounting.


 Pick up/hang up mode:Pick-up/hook-up mode is a handle control mode, pick-up is on, hook-up is off .

 answer the phone:When a call comes in, the phone rings, remove the handle and talk to the other party, hang up the handle when finished.

dial number:Remove the handle and operate it in the same way as a normal telephone to talk to the other party.


Phone size: 373 *282 *137(mm) 

Packing material: corrugated box, pearl cotton lining 

Gross weight: 9KG 

Net weight: about 8KG 

Detailed parameters

1.Suitable for various program-controlled switches and fiber optic telephones with a feed voltage of 33-60V

2.Temperature: -40℃~75℃

3.Relative humidity: 10%~95%

4.Atmospheric pressure: 86~106 Kpa 

5.Environmental noise: ≤60dB(A) 

6.Ring tone level: ≥80dB

7.Signal level when the subscriber line is 3KM

Low frequency group: 697-941Hz

High frequency group: 1209-1477Hz

Frequency offset: no more than ±1.5%

High and low frequency level difference of combined signal: 2±1dB 

Total distortion caused by harmonic intermodulation is at least 20dB below fundamental level

8.Call transmission index: SLR≤12, RLR≤-1, STMR ≥10, output impedance: 600Ω

9.On the 0.8mm cable core, the subscriber line can be up to 5KM long.

10.Connection mode: telephone line twisted pair.