Notes on Hub Module SN 08: Latest Rev. 27-Sept-2019 -------------------------- - Start work on SN-08 on about 9-Oct-2017 - All work on the MSU Final Assembly of Hub SN-08 fits the basic outline as described in the trailer for Hub SN-07 and I will not repeat that text in this trailer sheet. MSU Final Assembly of Hubs SN-08 and SN-09 was dones at the same time. - The significant points that came up during the MSU Final Assembly of Hubs SN-08 and SN-09 is that: I need to cut a notch in the component side narrower lip of the front panel to allow access for the MiniPOD Heat Sink. I need to change yet again the design of the Front Panel Center Bracket. The two mounting screws for this bracket need to move 50 to 100 mils to give better thread coverage on the surface that clamps the discrete power wires and I need to reduce the heigth of this bracket to allow clearance of the MiniPOD Heat Sink. Mounting of the Front Panel to its Brackets is now dones with the following screw lengths: Bottom Bracket 2x 3/8" 4-40 Middle Bracket 2x 5/16" 4-40 Top Bracket 1x 1/4" 4-40 and 1x 1/2" 4-40 Initial Power Up Checks: ------------------------ - Check of the Hub SN-08 PLL clocks: 40.08 MHz PLL 40.0846 MHz free run 40.08 MHz PLL 40.0737 to 40.0840 MHz track 320.64 MHz PLL 40.0755 to 40.0825 MHz track Spare Oscillator 40.078619 MHz running Check both sides of all clock fanouts: to Hub logic, to ROD, to Backplane, to MGT Quad Reference clock. Once the range of the PLLs has been checked then install the "Spare Oscillator" and the two 255 Ohm pull-down resistors. Record the frequency of the Spare Oscillator (shown above). - Program the Flash Config Memory with the Safe/Foundation firmware. - Verify that this Hub Auto-Configures at power up. - Verify that the 4 front panel Ethernet jacks work. Final Bench Checks of SN-08: date: 24-Oct-2017 ----------------------------- Power Bus: FPGA MGT MGT Swch Bulk Fan Bulk Core AVCC AVTT 1V2 1V8 1V8 3V3 ---- ---- ---- ---- ---- ---- ---- Address: 40 41 42 43 44 45 46 Volts: 0.95 1.00 1.20 1.20 1.80 1.83 3.308 Amps: 1.19 0.12 0.25 1.94 0.25 12.12 1.75 Safe Config Fluke Volts: 0.958 1.000 1.200 1.198 1.801 1.796 3.309 MGT_AVAUX 1.804 SysMon_Ref 1.251 Bulk_2V5 2.504 ISO_12V 11.926 SysMon: 28 deg C VAUX 1.811 VINT 0.961 - Remove the temporary On/Off switch. Currently Missing from Hub SN-08: date: 30-Oct-2017 --------------------------------- IPMC PROM and its contents 3x Enet Switch PROMS Phys Chip Mode Jumpers Lemo Connector on front panel FP Handle Switch FPGA Heat Sink thermal bond MiniPODs and their Heat Sink and Fiber Optic Ribbon Cable Correct Fuses Glue down of the discrete power wiring Further Final Assembly: date: 7-Sept-2018 ----------------------- Install final FPGA Heat Sink, mid board MPO connectors and air block, FO Ribbons, remove On/Off switch, install handle switch power control, install Enet Swch PROMS. More Final Assembly & Ship to CERN: date: 7-June-2019 ----------------------------------- Another round of Final Assembly install: lettered front panel, ROD Lemo, split B-C Enet Switch. Setup for IPMC control of Hub power. 100% current final version except no ROD. Re-test all MGT links. Ship to CERN Yuri air waybill 8112 7236 3029. CERN STF Over Temperature Incident: date: 27-Sept-2019 ----------------------------------- Hub SN-08 was in the CERN STF and powered On during the over temperature incident of Sunday 15-Sept-2019. Received SN-08 date: 07-OCT-2019 ---------------- Received SN-08 Inspected unit for signs of damage or heat stress. MTP connectors are slightly deformed and will have to be replaced. Unit is sitting in our catalog, and will be repaired and tested once production of new hubs won't be held up. Changed heat-stressed MPOs 15-OCT-2019 -------------------------- Replaced all heat-stressed MPO connectors. Unit going into Slot #2 on 14SS. 22 OCT 2019 Unit removed from 14SS and placed into our catalog. 12 NOV 2019 - Removed always-on IPMC bypass and connected yellow wire from ATCA handle switch Across commons of Jumpers 5 and 6. - Verified that coupling capacitors C2301-C2308 have been removed from in between ethernet switches U31 and U32. 13 JAN 2019 - Removed ATCA handle wire and installed 0 Ohm jumper at JMP5 to enable ICMP control of 12V supply. 04 FEB 2020 - Unit has spent the last 8 days in 14SS (4 days in each slot) for IBERT and GbE testing. 21 JAN 2020 - Removed previously installed IPMC bypass from the handle switch. Installed 0 Ohm jumper at ocation JMP5, direct enabling IPMC control of ISO_12V. 15 JUN 2021 - This is a note to confirm that the board has been through the fiber ribbon replacement. See hub/hardware/details/Hub_Inventory_Status_Final_Assembly/Fiber%20Ribbon%20Problem/00_Hub_Fiber_Ribbon_Issue.txt for details.