----------------------------------------- | | | Cables for L1.5 Calorimeter Trigger | | | | for A SINGLE L1.5 Cal Trig Crate | | | ----------------------------------------- 25-FEB-1994 Section I: "Data" Cables ======================== (1) Local DSP ---> Global DSP ----------------------------- =========================================== THESE ARE TO BE MADE AT MSU =========================================== There should be 2 identical Hydra-II -> Hydra-II Cables. They are 24- conductor twist-n-flat cables with a single "socket-style" 24-conductor cable mount header (with strain reliefs) on each end. These cables should be 1 section long. They should have labels on each end: Local DSP to Global DSP From Local DSP {A2 | C2} Comm Port {1 | 2} To Global DSP B2 Comm Port {4 | 5} S/N L15CTLG{1 .. 2} These cables will be made at MSU with materials supplied by MSU (2) CRC ---> Local DSP ---------------------- =========================================== DEFINED IN FILE L15_CALTRIG_CABLES_FNAL.TXT =========================================== There should be 40 identical CRC -> Local DSP Cables. They are 24- conductor twist-n-flat cables with a single "socket-style" 24-conductor cable mount header (with strain reliefs) on each end. These cables should be 2 sections long. They should have labels on each end: {EM | Total} Et eta {-20..-17 | ... | +17..+20} Copy # {1 | 2} Local DSP {A | B | C} {1 | 2 | 3 | 4} Comm Port {0 | ... | 5} S/N L15CTCL{1 .. 40} These cables will be made at FNAL with materials supplied by MSU (3) DC ---> CRC ---------------- =========================================== NOT YET WELL ENOUGH DEFINED FOR MANUFACTURE =========================================== There should be 10 DIFFERENT DC -> CRC Cables. They are 40-conductor twist-n-flat cables with a single "socket-style" 40-conductor cable mount header (with strain reliefs) on one end, and ????????? on the other end (at least one connector, maybe more??? how do we want to handle multiple L1.5 Cal Trig crates?). The lengths of these cables must be determined individually for each of the 10 cables. I need to define entry points and make some measurements. They should have labels on each end: {EM | Total} Et eta {-20..-17 | ... | +17..+20} S/N L15CTDC{1 .. 10} These cables will be made at FNAL with materials supplied by FNAL (4) "Top" ERPB ---> DC Daisy Chain Data ---------------------------------------- ======================================================== DEFINED IN FILE L15_CALTRIG_CABLES_FNAL_SECOND_BATCH.TXT ======================================================== There should be 10 identical "Top" ERPB -> Daisy Chain Data Cables. They are 50-conductor twist-n-flat cables with a single "socket-style" 50-conductor cable mount header (with strain reliefs) on each end. Each of these cables is 1 section long. These cables have no labels. These cables will be made at FNAL with materials supplied by FNAL (5) ERPB ---> ERPB Daisy Chain Data ------------------------------------ =========================================== DEFINED IN FILE L15_CALTRIG_CABLES_FNAL.TXT =========================================== There should be 2 different types of ERPB -> ERPB Daisy Chain Data Cables. There should be 60 of the "first type" which should be 1 section long. There should be 10 of the "second type" which should be 2 sections long. Each of these cables is a 40-conductor twist-n- flat cable with a single "socket-style" 40-conductor cable-mount header (with strain reliefs) on each end. They will have no labels. These cables will be made at FNAL with materials supplied by FNAL (6) CTFE ---> ERPB ------------------- =========================================== almost DEFINED IN FILE L15_CALTRIG_CABLES_FNAL.TXT =========================================== There should be 3 different types of CTFE -> ERPB Cables. These should be 40-conductor FLAT ribbon cable, with a single 40-conductor "socket-style" cable-mount connector (with strain reliefs) on each end. The lengths of each of these cables is going to have to be carefully measured and specified in inches rather than in sections, and also will have to take into account all of the various "end effects" seen in short flat cables. They will have no labels. Section II: "Timing" Cables ============================ (7) MTG ---> DC ---------------- MTG Connector on DC looks like: ------------------------------ MTG ERPB DC Pin # Name Name Name Pol. Comment ----- ---- ---- ---- ---- ------- 1 NINV unused 2 INV unused 3 MTG_0 SETUP_0 INPUT_CLK NINV 4 MTG_0 SETUP_0 INPUT_CLK INV 5 NINV unused 6 INV unused 7 MTG_1 TOTAL SETUP_1 NINV 8 MTG_1 TOTAL SETUP_1 INV 9 MTG_2 STORE\ SETUP_2 NINV 10 MTG_2 STORE\ SETUP_2 INV 11 MTG_3 LATCH\ SETUP_3 NINV 12 MTG_3 LATCH\ SETUP_3 INV 13 MTG_4 SETUP_4 NINV unused 14 MTG_4 SETUP_4 INV unused 15 NINV unused 16 INV unused 17 MTG_5 SETUP_5 NINV unused 18 MTG_5 SETUP_5 INV unused 19 NINV unused 20 INV unused 21 MTG_6 XMIT_TRIG XMIT_TRIG, SETUP_6 NINV 22 MTG_6 XMIT_TRIG XMIT_TRIG, SETUP_6 INV 23 MTG_7 SETUP_7 NINV 24 MTG_7 SETUP_7 INV 25 MTG_8 DIST_ADR\ NINV 26 MTG_8 DIST_ADR\ INV 27 MTG_9 DIST_STB\ NINV not routed to ERPB 28 MTG_9 DIST_STB\ INV not routed to ERPB 29 MTG_X NINV spare 30 MTG_X INV spare 31 MTG_Y NINV spare 32 MTG_Y INV spare 33 NINV unused 34 INV unused There should be 3 different types of MTG -> DC Timing Cables. Their precise specifications and lengths are very important. They must allow the L1.5 Cal Trig Timing Signals to be synchronous (i.e. minimum skew) with the L1 Cal Trig Timing Signals. Thus the delay of each cable must match the delay of the L1 Cal Trig Timing Signal cables. We are also going to have to think about allocation of MTG channels and exactly how the "fan-out" is going to work. These cables are going to have multiple connectors on each end. Steve Pier has asked us to delay making these cables until he has designed the DC. I think it might be best if these cables were made at MSU with materials supplied by MSU. These cables are hard to describe and will not be fully specified for quite some time. (8) DC ---> ERPB Parallel Timing --------------------------------- ======================================================== DEFINED IN FILE L15_CALTRIG_CABLES_FNAL_SECOND_BATCH.TXT ======================================================== There should be 10 identical DC -> ERPB Parallel Timing Cables. They should be 40-conductor twist-n-flat cables with 9 connectors spaced as follows (connector 1 is at the "top" of the chain when the pin #1 marker is in the normal orientation [i.e. pin #1 at the top right when the chain is viewed from the rear]): Between connectors Number of sections required ------------------ --------------------------- 1 - 2 1 2 - 3 1 3 - 4 1 4 - 5 1 5 - 6 2 6 - 7 1 7 - 8 1 8 - 9 1 There is a hand-drawn detailed specification for these cables. These cables will be made at FNAL with materials supplied by FNAL.