Specification :

INTRODUCTION
The emergency call telephone will be designed to work on Railway, metro, tunnel, etc. Housed in robust aluminium box with one CALL/ ANSWER button, it will offer protection against the outdoor environment and vandals.

The unit will meet all the latest European/ UK standards telephony, waterproofing IP65, and lightening protection together with offering the level of performance and reliability demanded in such an environment.

Main Features:

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.

1 Main body with whole metal body, solid and temperature bearable
2 Handset free, build-in loudspeaker,
3 Resume lightning proof protection automatically standard to ITU-T K21
4 Waterproof grade about IP55
5 The metal shell is provided with grounding connection device and is absolutely insulated with inner circuit and electric , then has the effect of electromagnetism shield.
6 Support hotline call, can realize ring off automatically if the other side close.
7 Totally adopt SMTC craftwork keep very good quality.
8. KNEM-23

The design is super thin and smart. Embed style and hanging style can be chosen.

9 Every call is limited( set by five minutes) , auto ring off if time exceeded. ( Optional)
10 The telephone has passed the certificate of ISO9000( 2000)
11 Built-in CCTV camera will open/ close automatically when telephone on/ OFF.
12 Blue light automatically open and / close when there’ s a phone call coming.

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

VOICE OVER IP – SIP

Connection type: RJ45 Socket inside sealed enclosure
Power suplly: External 24V dc
Call set-up Protocol: Session Initiation Protocol( SIP)
Configuration: DHCP or Static IP address provisioning

Specification:
Light: DC24V
Telephone model plate style: KNZD-09
Function the light will flash when there is a call
Seek help: light flash

During the night automaticly turn on

During the day automaticly turn off

Main technical indexes

1
Applicable for various types of SPC exchange and dispatching exchange system with feeding voltage of 48-69V.

2
Ambient temperature: -30 ~ 60 Relative humidity: 10% ~ 95%
Atmospheric pressure: 86~ 106Kpa Circumstance noise: d 60dB A

3
Sound level of ringing e70dB A . 1W speaker

4
Standard frequency low frequency group 697
770
852
941Hz,
high frequency group 1209
1336
1477Hz, frequency deviation d± 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) SLRd12, RLRd-1, STMRe10, output impedance is 600© .

6
Super strong function is available for dialing 12 groups of numbers stored in the memory  maximum length of each number is16 digits

Certification:

EMC: EN50121 ( Railway application- Electromagnetic Compatibility)
EN55022: emissions
EN55024: immunity
Ingress Protection: GB4208-93 IP67
FCC
ITU-T Recommendations K21