When changing a 2 wire intercom system, we always recommend using an IP video intercom system, but sometimes this is impossible. For these types of situations, we have the Akuvox 2 wire system.

Wiring
Pay attention when installing a two wire video intercom.
First, the cabling would be best to replace it. The thickness and length, and how many monitors are connected in a chain, is of course important for the installation.
Below is a table with the thickness required for the distances and the number of monitors.
| Voltage |
Cable model |
Farthest distance |
| 48V |
24awg= 0.5106 mm
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100m/6devices 150m/4devices 200m/3devices |
| 20awg= 0.8118 mm |
250m/6devices 300m/5devices |
| 18awg= 1.0237 mm |
300m/6devices |
Because the older 2 wire system in chain runs from monitor to monitor, a maximum of 6 can be connected in chain.
| Note: Max 6 monitor in chain. |
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There is the option to use the up-link to another hub.
Note: The up-link cable needs to be 5CM separated from the monitor cables, and all the NS-2 hubs needs to have their own 48 volts / 2,5 Amp power supply. There is no limit in the chain.
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| We recommend using the DC48V2A-DIN power supply |
| DC48V2A-DIN |
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Cabling in the Building
Most buildings have a cable shaft, so we then recommend installing the NS-2 hubs on each floor and connecting them with an Ethernet cable.
Download link to the wiring diagram: wiring diagram sample
The monitor
For the 2 wire monitor, there is only one monitor model the AK-C313W-2, and when the client would like to have a different model they need to use and the AK-NC-2 converter.
| AK-S567 |
AK-NC-2 |
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| Video? |
The door station
For the door station we do recommend using an IP door station but if that is not working there is also the option to use an AK-NC-2 converter just like with the monitor option.
Solutions for 2 wires:
| 2 Wire only |
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+ max 3x |
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| Simple buttons only |
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+ max 3x |
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| Advanced |
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| High Tech |
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Switch
For the switch we always recommend using one from Reyee.
When you need us to assist with your project, let us know.