My notes on FLVPS System ELMB-MB ------- 20-position flat cables to the 8 bricks: J4 to +15V MB J5 to +5V MB J6 to -15V HV J7 to +3.3 DIG J8 to +5V HV J9 to +5V DIG J11 to -5V MB J14 to +15V HV J13 CANbus connection for bench testing J3 CANbus and AUX board connections to ELMB-MB 6 CANbus lines ELMB power and ground from AUX board 4 lines for two on/off circuits LOCK1 and LOCK2 are high/low used to generate signal C1 C1 high enables bricks for MB and DIG DC outputs LOCK3 and LOCK4 used to generate signal C2 C2 high enables bricks for HV DC outputs CLK1A and CLK2A are LVDS inputs of clock used to sync brick switching becomes F1 which is sent to all bricks (referenced to AGND) Brick initialization power and ground becomes VDD-1 and signal ground (line arrow) ELMB power and ground (15V and AGND) used to generate P5V on ELMB-MB using LHC voltage regulator P5V also sent to all bricks via pin 17 of flat cable AGND goes to GND1-i via 10 ohms and pins 19, 20 of flat cable to brick J10 Thermometer inputs P5V out and TH1 and TH2 in J12 Sense lines 20-position flat control cables to bricks pin 1,2: VDD-1, brick initialization power from AUX board 3: INCURMEAS input current sense (in series with low side of 200V) 4: INCURGND input current sense return 5: input voltage sense 6: input voltage sense gnd 7: OUTCURRMEAS, output current sense 8: OUTCURRGND, output current sense return 9: OUTVOLTMEAS, output voltage sense 10: OUTVOLTGND, output voltage sense ground 11: T1 temp. sensor, 680R to gnd, 10KTH to P5V 12: C1, high to enable brick output 13: DPOS, +DAC steering voltage for brick 14: DNEG, -DAC steering voltage for brick 15: T2 temp. sensor, through 10KTH to P5V 16: T3 temp. sensor, through 10KTH to P5V 17: P5V, ELMB power 18: F1, sync signal for brick switching 19,20: GND1-i Brick ----- J1 4-position for 200V input J2 20-position flat control cable J3 10-position output connector J6 4-position connector for testing J7 6-position connector originally for brick-specific resistors but no longer used