There must be a good reason for it, but in this photo (from that FTTC Diary
), taken inside the Huawei 128 cabinet, by Drsox
, there is spare frame space to the right of the MA5616. Unfortunately, it's not enough space to be useful:
Just an extra half unit more on that frame and two MA5616 could have squeezed into the cabinet, doubling the number of lines served. If that configuration were possible, then with eight VDMM linecards, the current highest port density of Huawei VDSL2 linecards, plus two CCUC controllers, that tiny "128" cabinet could still serve 384 VDSL2 subscriber lines.
As you've already said though, there would also be space issues for a beefed up power supply and cooling system, as well as a doubling of the current space requirements for the extra 237a connection blocks.
Edited by asbokid (Fri 12-Oct-12 20:56:15)