Issue with a DSL firmware on SRX branch device

Greetings,

I need the firmware for the DSL modem. I have access to the JunOS load, and it does not seem to include the updated firmware. For example:

VBCEFS03@VBCEFS03> show version
Hostname: VBCEFS03
Model: srx110h2-va
JUNOS Software Release [12.3X48-D50.6]

VBCEFS03@VBCEFS03> show system firmware
Part             Type           Tag Current   Available Status
                                    version   version
FPC 1          
  PIC 0          VDSLBCM        10  2.10.0              OK               
Routing Engine 0 RE BIOS        0   2.5       2.8       OK               
Routing Engine 0 RE BIOS Backup 1   2.5       2.8       OK               
Routing Engine 0 RE FPGA        14  1.0.0               OK 

And here's an SRX320 with one modem on 2.10.0 and one on 2.16.0, but no available firmware updates either:

FTWOFS02@FTWOFS02-VancouverSportsClub> show system firmware
Part             Type           Tag Current   Available Status
                                    version   version
FPC 1          
  PIC 0          VDSLBCM        10  2.16.0              OK               
FPC 2          
  PIC 0          VDSLBCM        10  2.10.0              OK               
Routing Engine 0 RE BIOS        0   3.1       3.2       OK               
Routing Engine 0 RE BIOS Backup 1   3.1       3.2       OK 

According to various documents, the version needed for vectoring is 2.16.0. I'm still unclear on whether G.INP is supported at all, and if so, which firmware is necessary.

Thank you very much in advance