Migrating mitel asu to a grandstream sip 1

[t3rm3y]

Hi, I don't know the mitel, but believe the asu has a standard amphenol 25 pin / 50 pair cable,
I need to move the analogies off to a grandstream gxw4248 device, does any one know if I can just move the amphenol over? Has anyone done this?

 

[dirtcheap]

Look up the pinout and gender of the ASU or ASU II module(12, 16 or 24 port?) and compare it to the Grandstream. That will determine if you have to get gender changers and/or rewire everything.

 

[sarond]

Looking at the documentation they appear to be the same pin out. Assuming AG4100 is rebranded GXW

Mitel AG4100
Section 6.1.2 RJ21 Wire Sequence

https://www.mitel.com/document-center/business-phone-systems/mivoice-business/mivoice-business/all-releases/en/mitel-ag4100-analog-gateways-quick-installation-guide-v40

ASU
Section 3.4 Pin Allocations

https://www.mitel.com/document-center/business-phone-systems/mivoice-business/mivoice-business/101-sp1/en/mivoice-business-hardware-technical-reference-manual

 

[Hemonious]

Mitel made amphenol adapters for their new AG4124 and AG4172 SIP ATA's. Maybe Grandstream has something similar.

 

[t3rm3y]

Look up the pinout and gender of the ASU or ASU II module(12, 16 or 24 port?) and compare it to the Grandstream. That will determine if you have to get gender changers and/or rewire everything.

It's ASU II module, 2x cables. So I'm assuming 48 port total. Its on a Mitel 3300 if any of that helps?
How do I check the pin out if I don't know the mitel?

Looking at a photo of the ASU II this looks to be male connection?
But the grandstream uses Male connectors, so could i use something like this

https://www.showmecables.com/centronics-50-male-to-female-port-saver

 

[t3rm3y]

Mitel made amphenol adapters for their new AG4124 and AG4172 SIP ATA's. Maybe Grandstream has something similar.
View attachment 1310

i think i will need something like this to convert the cable on the ASU to work plug into the Grandstream, i just need to check the pin outs from one of the previous posters to ensure the wiring, or maybe the extensions will end up backwards.