SUMMARY OF LAYOUT AND NAMING CONVENTIONS FOR

# HV CABLE ASSEMBLIES

![](media/image1.jpeg){width="5.833333333333333in"
height="5.756944444444445in"}

Schematic of HV cable assemblies. Two assemblies are manufactured at
same time, AWG36 "inner" wires are cut in middle and attached to
different PP0 sets. Each assembly uses two identical Flex PCB boards
(designated "A" -- top and "B" -- bottom). Layout of an individual PCB
is shown on next page.

Schematic of Flex PCB for HV cables

![](media/image2.jpeg){width="6.0in" height="5.966666666666667in"}

![](media/image3.pct)

+------+--------+-------------------------+----------------+---------+
|      | Wires  | Conductor               | Insulation     | Manuf   |
|      |        |                         |                | acturer |
+------+--------+-------------------------+----------------+---------+
| Each | 26 tw  | AWG28 7-strand tin      | Polyimide      | Raydex  |
| End  | pairs  | plated copper           | red/green      |         |
+------+--------+-------------------------+----------------+---------+
| Mi   | 26 tw  | AWG36 solid copper      | Polyimide ML   | MWS     |
| ddle | pairs  |                         | clear//green   |         |
|      |        |                         |                |         |
|      | (2     |                         |                |         |
|      | bu     |                         |                |         |
|      | ndles) |                         |                |         |
+------+--------+-------------------------+----------------+---------+

PP1 Pinout, FlexPCB pad assignments, and Naming Conventions for HV
Cables

  ------------- ------------- ------------- ------------ ---------------------- ------------------
  F-connector   AWG28-Flex A  AWG28-Flex B  Color        Net name               Label
  Pin Number                                                                    PP1-Flex-fcn-PP0

  2             1H                          R            HV_1T_A                2 - A1H - HV - A1T

  3             1                           G            HV_RET_1T_A            3 - A1 - HVr - A1T

  4             2H                          R            HV_2T_A                4 - A2H - HV - A2T

  5             2                           G            HV_RET_2T_A            5 - A2 - HVr - A2T

  6                                                      Drain/shield           6 -- Drain/shield 

  27            3H                          R            HV_3T_A                27 - A3H - HV -
                                                                                A3T

  28            3                           G            HV_RET_3T_A            28 - A3 - HVr -
                                                                                A3T

  29            4H                          R            HV_4T_A                29 - A4H - HV -
                                                                                A4T

  30            4                           G            HV_RET_4T_A            30 - A4 - HVr -
                                                                                A4T

  31            5H                          R            HV_5T_A                31 - A5H - HV -
                                                                                A5T

  48            5                           G            HV_RET_5T_A            48 - A5 - HVr -
                                                                                A5T

  46            6H                          R            HV_6T_A                46 - A6H - HV -
                                                                                A6T

  47            6                           G            HV_RET_6T_A            47 - A6 - HVr -
                                                                                A6T

  59                                                     Safety_interlock_A1     

  60                                                     Safety_interlock_A2     

                                                                                

  7                                                      Drain/shield           7 -- Drain/shield 

  [8]{.mark}    [7H]{.mark}   [ ]{.mark}    [R]{.mark}   [HV_7T_A]{.mark}       [8 - A7H - HV -
                                                                                A7T]{.mark}

  [9]{.mark}    [7]{.mark}    [ ]{.mark}    [G]{.mark}   [HV_RET_7T_A]{.mark}   [9 - A7 - HVr -
                                                                                A7T]{.mark}

  10            8H                          R            HV_1B_A                10 - A8H - HV -
                                                                                A1B

  11            8                           G            HV_RET_1B_A            11 - A8 - HVr -
                                                                                A1B

  12            9H                          R            HV_2B_A                12 - A9H - HV -
                                                                                A2B

  13            9                           G            HV_RET_2B_A            13 - A9 - HVr -
                                                                                A2B

  32            10H                         R            HV_3B_A                32 - A10H - HV -
                                                                                A3B

  33            10                          G            HV_RET_3B_A            33 - A10 - HVr -
                                                                                A3B

  34            11H                         R            HV_4B_A                34 - A11H - HV -
                                                                                A4B

  35            11                          G            HV_RET_4B_A            35 - A11 - HVr -
                                                                                A4B

  49            12H                         R            HV_5B_A                49 - A12H - HV -
                                                                                A5B

  50            12                          G            HV_RET_5B_A            50 - A12 - HVr -
                                                                                A5B

  51            13H                         R            HV_6B_A                51 - A13H - HV -
                                                                                A6B

  61            13                          G            HV_RET_6B_A            61 - A13 - HVr -
                                                                                A6B

                                                                                

  15                          1H            R            HV_1T_B                15 - B1H - HV -
                                                                                B1T

  16                          1             G            HV_RET_1T_B            16 - B1 - HVr -
                                                                                B1T

  17                          2H            R            HV_2T_B                17 - B2H - HV -
                                                                                B2T

  18                          2             G            HV_RET_2T_B            18 - B2 - HVr -
                                                                                B2T

  19                                                     Drain/shield           19 --
                                                                                Drain/shield 

  37                          3H            R            HV_3T_B                37 - B3H - HV -
                                                                                B3T

  38                          3             G            HV_RET_3T_B            38 - B3 - HVr -
                                                                                B3T

  39                          4H            R            HV_4T_B                39 - B4H - HV -
                                                                                B4T

  40                          4             G            HV_RET_4T_B            40 - B4 - HVr -
                                                                                B4T

  52                          5H            R            HV_5T_B                52 - B5H - HV -
                                                                                B5T

  53                          5             G            HV_RET_5T_B            53 - B5 - HVr -
                                                                                B5T

  54                          6H            R            HV_6T_B                54 - B6H - HV -
                                                                                B6T

  55                          6             G            HV_RET_6T_B            55 - B6 - HVr -
                                                                                B6T

  62                                                     Safety_interlock_B1     

  63                                                     Safety_interlock_B2     

                                                                                

  20                                                     Drain/shield           20 --
                                                                                Drain/shield 

  [21]{.mark}   [ ]{.mark}    [7H]{.mark}   [R]{.mark}   [HV_7T_B]{.mark}       [21 - B7H - HV -
                                                                                B7T]{.mark}

  [22]{.mark}   [ ]{.mark}    [7]{.mark}    [G]{.mark}   [HV_RET_7T_B]{.mark}   [22 - B7 - HVr -
                                                                                B7T]{.mark}

  23                          8H            R            HV_1B_B                23 - B8H - HV -
                                                                                B1B

  24                          8             G            HV_RET_1B_B            24 - B8 - HVr -
                                                                                B1B

  25                          9H            R            HV_2B_B                25 - B9H - HV -
                                                                                B2B

  26                          9             G            HV_RET_2B_B            26 - B9 - HVr -
                                                                                B2B

  41                          10H           R            HV_3B_B                41 - B10H - HV -
                                                                                B3B

  42                          10            G            HV_RET_3B_B            42 - B10 - HVr -
                                                                                B3B

  43                          11H           R            HV_4B_B                43 - B11H - HV -
                                                                                B4B

  44                          11            G            HV_RET_4B_B            44 - B11 - HVr -
                                                                                B4B

  56                          12H           R            HV_5B_B                56 - B12H - HV -
                                                                                B5B

  57                          12            G            HV_RET_5B_B            57 - B12 - HVr -
                                                                                B5B

  58                          13H           R            HV_6B_B                58 - B13H - HV -
                                                                                B6B

  64                          13            G            HV_RET_6B_B            64 - B13 - HVr -
                                                                                B6B
  ------------- ------------- ------------- ------------ ---------------------- ------------------