Intercom Business -
 290A  – DNAKE Featured Image
Intercom Business -
 290A  – DNAKE Featured Image

Intercom Business - 290A – DNAKE

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Our mission will be to become an innovative supplier of high-tech digital and communication devices by furnishing benefit added structure, world-class manufacturing, and service capabilities for Hospital Calling System , Sip Doorbell , Indoor Station , Our team members are aim to provides products with high performance cost ratio to our customers, and the goal for all of us is to satisfy our consumers from all over the world.
Intercom Business - 290A – DNAKE Detail:

1.There is no need to replace the existing wiring or cables. It can connect to 290 IP device with two-wire cables, even in an analog environment.
2.There are two Ethernet ports for Internet input and system expansion.
3.It can connect and supply power to max. 8 indoor monitors or any IP device by working with  Slave Converter over two-wire cable.
Physical Property
Size 197x114x38mm
Power DC 48V ±10%
Rated Power 4W
Power Adapter 48VDC / 1.25A,60W
Temperature -40℃ ~ +70℃
Humidity 20% ~ 93%
IP Class IP30
Interface DC socket (Input 48VDC)*1 RJ45*2
2-core interface(Main In)*1 2-core interface(Main Out)*1
2-core interface(connect to indoor monitor)*8
LED Indicators Link: green light flashes-Network connection status;
Act: red light always on-2WIRE connection status
Transmission Method Access Method: CSMA/CA; Transmission Scheme: Wavelet OFDM; Frequency Bandwidth: 2 MHz to 28 MHz
2-wire RVV 2*0.75, ≤100m
network cable Cat 5e, Cat 6 or better


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Our products are broadly regarded and reliable by end users and can meet up with constantly transforming financial and social requires of Intercom Business - 290A – DNAKE, The product will supply to all over the world, such as: Ecuador , California , French , The best and original quality for spare parts is a most important factor for transportation. We may stick on supplying original and good quality parts even a little profit earned. God will bless us to do kindness business forever.
  • Datasheet 904M-S3.pdf
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The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
5 Stars By Hazel from Amsterdam - 2018.08.12 12:27
The company comply with the contract strict, a very reputable manufacturers, worthy a long-term cooperation.
5 Stars By Adam from moldova - 2018.06.18 19:26

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