sip phones grandstream KNZD-39
The emergency call telephone will be designed to work on Railway, metro, tunnel, etc. Housed in robust matel box with one CALL/ ANSWER button, it will offer protection against the outdoor environment waterproofing IP65 and vandal resistatn. The unit will meet all the latest European/UK standards for EMC /LVD and FCC telephony and lightening protection.
l Standard and SMART Analogue and VoIP-SIP options available
l DTMF(Dual Tone Multi Frequency)
l Matching with most PABX,PBX and PAX systems and IP PABX
Main Features:
1. Analogue phone
2. Metal body stainless steel 304 ( we can make stainless steel 316 as optional).
3. Identifying the push button can be customized in English or other language.
4. The phone affixed to the mount using 4 stainless steel tamper proof screws.
5. One button with memory for speed-dial call. Easy programmable.
(we can also make the keypad built-in phone case for hidden).
6. LED indicators for incoming call optional
7. Wearable, waterproof, moisture proof, Vandal resistant and tamper-resistant hardware
8. Lightening protection to ITU-T K.21
9. Automatically release the line when the other far end hang up first.
10. Built-in induction loop optional
11. Patch cable is industry standard CAT 3 telephone cable patch cable equipped with RJ11 connector.
12. Dry contact ready if customer need this for CCTV optional
Applications:
As Public telephone for indoor or outdoor,elevator phone, Taxi or bus stands or station, Highway call box. Railway, metro, ATM machines side, Tunnel, Port, Dock, Mines, Generation facilities.
A good ideal telephone for use in wet or corrosive atmospheres
Specification:
Analogue version:
1, Applicable for various types of SPC exchange and dispatching exchange system with feeding voltage of 48-69V.
2, Operating temperature:-10°C~ +55°CRelative humidity:10%~95%
Atmospheric pressure: 86~106Kpa Circumstance noise:≤ 60dB(A)
The ERT assembly housing weather proof with an IP rating of IP55
3,Sound level of ringing:≥70dB(A).
4,Standard frequency:low frequency group:697,770,852,941Hz,
high frequency group:1209,1336,1477Hz, frequency deviation:≤±1.5%
If service line is a 3Km signal-level:
Standard frequency:low frequency group:-9dB±3dB,high frequency group:-7dB±3dB,level difference between low and high frequency of compound signal:2±1dB,the total distortion caused by intermodulation of harmonic wave is lower than the basic level by at least 20dB.
5,Call transmission index:(5KM)SLR≤12,RLR≤-1,STMR≥10, output impedance is 600Ω.
6,Super strong function is available for dialing 12 groups of numbers stored in the memory (maximum length of each number is16 digits)
VOIC OVER IP- SIP (Optional)
Connection type: RJ45 Socket inside sealed enclosure
Power supply: External 24V dc
Call set-up Protocol: Session Initiation Protocol(SIP)
Configuration: DHCP or STATIC IP address provisioning
