Legend/Magix Expansion Limits? 4

[Netadministrator]

Magix 2.1 V8.0

I have 024 boards in slots 6 & 7
008 boards in slots 8 & 9 & 11
Merlin Messaging in slot 10

Can I replace the three 008 boards with 024 boards.

 

[392]

It would depend upon what's in slots 1-5 as to whether it's feasible to realign the modules to prevent an overload. But, looking at unit loads per carrier, I think you'd be pushing it without adding a third carrier.

Unit Load Rating of System Modules
Module Unit Load Module Unit Load
008 MLX 13.5 400 E&M 8.0
008 OPT 8.0 408 GS/LS-ID-MLX 13.5
016 ETR 24 412 LS-ID-TDL 13.0
016 T/R 12.8 800 GS/LS-ID 0.0
016 MLX 27 800 DID 8.0
024 TDL 24 800 NI-BRI 0.0
100D/100DCD 0.0 Processor 0.0
100R INA 0.0 MERLIN Messaging 0.0

If ULs > 96, reconfigure the system so
that the total ULs does not exceed 96
per carrier.

 

[dagwoodsystems]

Your current Unit Load is 60, which is fine (1 Unit Load = 1.9 Watts, or 114 Watts total for this cabinet).

However, swapping all three 008 boards for 024 boards causes several problems:

1. You exceed the total Unit Load max of 96 (by 24 Units)
2. You violate the max board-type count (a total of four 024 modules per carrier in hybrid/PBX mode,
and three 024 modules per carrier in Key mode).
3. You would have to renumber the voicemail ports if you replaced the modules in slot 8 or 9.

Given only what you've posted, I recommend replacing the board in Slot #11 and nothing more. This will increase your station count by 16 and bring the Unit Load total up to 80, which is still very acceptable. And unless you have a third cabinet that we don't know about, you will not have to renumber any stations.

You could actually replace two of the 008 boards and still be barely within the Unit Load max. However, I'd prefer to see your entire inventory before making that or any other suggestions regarding board swaps/relocations.

Note: Even if you're running in Hybrid/PBX mode, the quoted ability to support four 024TDL modules in a single cabinet IS NOT gospel. If you've got a fairly large number of 4424D+ phones(for example) in that cabinet's config, then you really need to consider a more conservative number of 024TDL boards.

 

[Netadministrator]

Thank you 392 and dagwoodsystems for sharing your expertise on this. This is the total system layout.

Carrier 1

Slot 0 Processor CKE5
Slot 1 024 TDL
Slot 2 408 GS/LS-MLX
Slot 3 408 GS/LS-MLX
Slot 4 100D/CSU/DSU-U
Slot 5 408 GLM-U

Carrier 2

Slot 6 024 TDL
Slot 7 024 TDL
Slot 8 008 MLX
Slot 9 008 MLX
Slot 10 Merlin Messaging
Slot 11 008 MLX

I could live with one additional 024 TDL board in slot 8, 9 or 11. Two additional 024 TDL boards would be nice, but not at the risk of overloading the system.