The discussion was led by the status report from Antonio.

Few points of relevance:

• It is agreed that the procurement of the optical MUX and back-end components will be followed up by Antonio and finalised in 2025 
• The DR for the assembly cannot be submitted by ESE:
• Antonio discussed this with IPT and the proposal is to make a version and Andrea/Christos clone it and submit it to SY.
• The number of components has been clarified but some doubts remain concerning QSFP vs SFP and Andrea was asked to verify with Manoel a few points; the answer is reported here:
• Form factor compatibility: SFP+ would be compatible with our specifications in terms of space even assuming the extra link needed
• Extra link form factor: we confirm we would like to have standard VTTx
• Extra link (25% extra) colour: we would like to have the extra VTTx spread between the 2 flavours
• Type 1: increased to 1875 (1900 if it is easier) from 1500
• Type 2: increased to 1875 (1900 if easier) from 1500
• Form factor preference: we would still prefer to get QSFP for the links and SFP+ for the clock, but this only if there is the possibility to improve the optical power margin.
• Concerning the number of MUXes for the BPMs:
• 1500 if we go for QSFP
• 3000 if we go for SFP+
• On the ROSA procurement
• High Tech (?) from UK has been identified as the supplier
• Jan has spoken with supplier and expects samples next week
• Prototypes and price estimates to follow.