Desktop type telephone KNZD-28
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.
l DTMF(Dual Tone Multi Frequency)
l Matching with most PABX,PBX and PAX systems.
l Hotline call, As soon as you pick up handset the phone will put through.
l Robust Metal body very strong.
l With or without keypad. Auto dial，
l LED indicator to inform you there is a coming call
l Robust and weather resistant, Wearable and moisture proof IP65
l Dual purpose design for wall or desk mounting, simple installation
l Industry standard robust handset with stainless armoured cord
l Well treated metal hook switch.
l Matching with most PABX, PBX and PAX systems. Standard RJ11 Connector
As Public telephone for indoor or outdoor, 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
1. Perform condition:
2. Main technical index:
sound level of ringing: 80db
3. Dial number
A : Pulse dial :the break ratio of pulse dial : 1.6±0.2︰1.0
speed of pulse dial：10±1 times/s
B. DTMF dial:
Low frequency：697.770.852.941HZ ；
low frequency electricity plane：-9±3dB；
high frequency electricity plane：-7±3dB
gap of low and high frequency electricity plane in frequency group：2±1dB；
4.Feature of electrical sound
Transmit echo assess
Receive echo assess
Side voice conceal assess
EMC : EN50121 (Railway application-
Ingress Protection: GB4208-93 IP67
ITU-T Recommendations K21
Telephone unit size: 230 x 150 x70 mm
1pcs in each inner CTN box,
size: 43.3 x 27.6 x 19.1 G.W: 4.5kg
4pcs in outer CTN box, size: 56.6 x 44.5 x42 G.W: 20.25kg
20GP: 2000PCS, 40GP: 4000PCS, 40HQ: 5200PCS
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