Adding ONU to Huawei SmartAX MA5683T

Q: Can I add the ONU without knowing the exact serial number?

Yes — instead of sn-auth, you can use ont add 0 1 password-auth or add it manually with ont confirm after display ont autofind lists it. Serial-number authentication is generally safer for ISPs managing many ONUs.

Q: Do the line profile and service profile IDs need to already exist?

Yes — ont-lineprofile-id and ont-srvprofile-id must reference profiles you've already created on the OLT. If they don't exist, the ont add command will fail.

Follow these steps to add a new ONU on a Huawei SmartAX MA5683T OLT — from finding the ONU’s serial number to bringing its service port online.

1. Connect and Enter Configuration Mode

Connect via Telnet or console, log in, then run:

enable
config

2. Review Current Configuration

Check which ONU IDs and service ports are already in use so you don’t collide with existing entries:

display current-configuration

3. Enter the GPON Interface

interface gpon 0/5

4. Find the New ONU’s Serial Number

Check which ONTs are online or discoverable on the port:

display ont autofind 0

Copy the serial number (SN) shown for the new device.

5. Add the ONU

ont add 0 1 sn-auth 48575443ECE02623 omci ont-lineprofile-id 10 ont-srvprofile-id 10 desc madankc

0 1 — port 0, ONU ID 1 (adjust to the next free ID)
sn-auth — authenticate by serial number
ont-lineprofile-id 10 / ont-srvprofile-id 10 — your line/service profile IDs
desc madankc — description or customer name

6. Set the Untagged VLAN on the ONU’s Ethernet Port

ont port native-vlan 0 1 eth 1 vlan 228

7. Exit the GPON Interface Menu

quit

8. Add a Service Port for the New ONU

service-port 2 vlan 228 gpon 0/5/0 ont 1 gemport 1 multi-service user-vlan 228

9. Save the Configuration

exit
save

FAQ

What if the ONU doesn’t show up in display ont autofind?
Confirm the fiber is patched into the correct PON port, the ONU has power, and the ONT is factory-reset or not already bound to another OLT. Also double-check you’re on the right port (interface gpon 0/5 matches where the fiber actually lands).

Can I add the ONU without knowing the exact serial number?
Yes — instead of sn-auth, you can use ont add 0 1 password-auth <password> or add it manually with ont confirm after display ont autofind lists it. Serial-number authentication is generally safer for ISPs managing many ONUs.

What happens if I forget to run save at the end?
Your configuration stays only in running memory. If the OLT reboots or loses power before a save, the new ONU and service port entries are lost. Always confirm with display current-configuration after saving.

Do the line profile and service profile IDs need to already exist?
Yes — ont-lineprofile-id and ont-srvprofile-id must reference profiles you’ve already created on the OLT. If they don’t exist, the ont add command will fail.