How do I connect a router to the XGS-PON fiber optic network from Delta and KPN?

We get this question regularly and that is why we want to list all the information with the help of this manual. We will discuss the connection method, together with the method to activate. This manual is therefore ideal for connecting, for example, a UniFi Dream Machine with SFP+ port (PRO / SE / MAX) or a MikroTik router with SFP+ connection (such as the RB5009) directly to the XGS-PON network of Delta or KPN.

1) Connecting the hardware

Supplies:
  • Zaram SFP+ ONT Module
    1. Extension cable such as; PatchCord cable UPC/APC connection cable , or for Delta there is also
      the ready-made SC/APC to Delta module connection cable with slide-in drawer

    On the Delta Fiber Network fiber optic connection point (FTU) you need to use a green (SC/APC). You can't just plug this in, you need an Attema drawer for this. Tip: Use our handy SC/APC to Delta module connection cable . Alternatively, you can also use the cable from the standard Delta modem. With the Nokia modem you can unscrew the flap at the bottom and remove the cable, with the Sagemcom modem you can remove it like this. For the KPN network we have the Patchcover TK01



    Your fiber optic connection point may have (empty) drawers. Until early 2023, Delta placed these as standard, after which they were cut. If they are present, remove the empty drawer from slot 1 and place the drawer with cable there.

    If you have a connection with empty drawers, you can use these empty ones to mount your own cable, see this document for an explanation. Warning: in practice the construction of the drawers is quite weak. When removing the connector, it can get caught behind a spring-loaded flap, causing everything to get stuck. Since the FTU is sealed, you will need to call a technician to fix this and it can take a few working days before he arrives at your doorstep. So it is better to leave it alone once it has been installed.

    Good to know: Most devices require a green (SC/APC) connector on the modem side except the Zaram SFP+ stick and the Fritzbox 5590, which require a blue (SC/UPC).

    If you need a longer cable or a cable with a blue SC/UPC connector, use for example a coupler and on the other side a (longer) cable with an SC/APC connector or a cable with an SC/UPC connector. Also note that the “A” in APC stands for “angled”, the fiber is cut at a small angle on the contact surface. For this reason never insert a green male into a blue female (or vice versa), you will damage the fiber!


    2) Activating the connection


    KPN
    Note: Although we have no hands-on experience for KPN itself, we understand that registration and activation is done in a similar way as the Delta activation below. We will update this section as soon as possible. Additional information can be found on this Tweakers forum post


    Delta

    You must first connect the standard Nokia or Sagemcom router, then your subscription will be activated. By default, you will receive a CG-NAT WAN IPv4 address (100.xxx). If you expect incoming traffic on certain ports, this will not work. The solution for this is to select “Dynamic IP” in the My Delta environment (instead of "IP standard” (=CGNAT).

    To start, you need to register the module with Delta. You can do this by starting a chat with Delta. They will ask you some questions, these are the answers:

    1. What is the brand and type of your XGS-PON modem: Answer: Zaram XGS-PON ONU SFP+ or CIG XG-99S
    2. What is the PON ID: For Zaram it is “ZRMTxxxxxxx”, at xxxxxx you fill in the numbers of your serial number. So do NOT use ZarmCNxxxxxxxx as a code.
    3. What is the serial number: Answer the same as the PON ID: “ZRMTxxxxxxx”
    4. What is the MAC address: here you can give the MAC address of the UDM-Pro. However, this is not important for the operation.
    It is possible that they do not ask for everything, the PON-ID is the most important anyway, without it it does not work. After a few working days you will receive a message that it has all been processed. Then you can connect it.

    The only thing you then need to set on the WAN of the UDM-Pro is a VLAN id. This is usually 100 for normal lines and sometimes 107 for business lines with a fixed IP. Sometimes a reboot of the router is required.



    As soon as the PON LED on your modem lights up, there is a connection to the OLT in the network. You will then receive an email with the subject line that "the fault has been resolved".

    If you see in your own modem that you have been assigned a WAN IP address, then everything works and you are ready. Note: in some cases it can take a few hours before you have internet, be patient!


    Much of the information in this article comes from this Tweakers forum post. For more information, we advise you to look here.