Huawei 4+2 ONT

Are these still a thing? I request a second FTTP service to a property on a full PON there any prospect of receiving one?

Not deployed new, very limited stock for fault replacement, and only where requirements dictate it must be a 4+2.

Services off the additional ports can still be provided, the functionality won't be going away anytime soon.

As for a second ONT, this depends on what the system says, sometimes an additional ONT can be ordered, sometimes not.

Edited by Blmcg (Mon 20-Jan-20 22:59:48)

Thanks.

As mentioned no network capacity for an additional ONT it would have to be a 4+2.

It would also need a full 2 Gb backplane between GPON port and switch ports, which should be fun.

In reply to a post by CarlTSpeak:

As mentioned no network capacity for an additional ONT

Do you mean that your CBT is full?

Just place your order. It's OpenReach's option whether to install a new CBT to increase capacity, or they *could* do an ONT swap.

In reply to a post by CarlTSpeak:

It would also need a full 2 Gb backplane between GPON port and switch ports, which should be fun.

Not sure what you mean by that. Are you ordering two 1000/220 circuits?

In reply to a post by candlerb:

In reply to a post by CarlTSpeak:

As mentioned no network capacity for an additional ONT

Do you mean that your CBT is full?

Just place your order. It's OpenReach's option whether to install a new CBT to increase capacity, or they *could* do an ONT swap.

In reply to a post by CarlTSpeak:

It would also need a full 2 Gb backplane between GPON port and switch ports, which should be fun.

Not sure what you mean by that. Are you ordering two 1000/220 circuits?

On point one new build so CBT capacity sufficient for plots present. Whether the optical budget is there for another CBT I have no idea.

The services will be a pair of 1000/115.

In reply to a post by CarlTSpeak:

On point one new build so CBT capacity sufficient for plots present. Whether the optical budget is there for another CBT I have no idea.

You mean: the CBT happens to have exactly the number of ports for the number of plots - there are no spare ports?

If another CBT were added then it would either connect back to spare ports on the same splitter, or to a new splitter. Either way it makes no difference to the existing optical budget. The insertion loss of a splitter doesn't depend on the number of "in use" connections.

In reply to a post by CarlTSpeak:

The services will be a pair of 1000/115.

OK: if you have two ONT's there's no problem, but whether the four-port can actually handle multiple ports of a gig simultaneously I have no idea.

Of course, if you are caning 2 x 1G and there lots of other subscribers on the same splitter, they may not thank you

There are no spare ports.

The rest of the PON will be fine. They have CIRs from Openreach to fall back on and will need to given a pair of 1000 Mb services will saturate the PON.

2.488 Gbit/s before overheads, about 2 Gb after most of them.