GE B30 Technical Reference Manual page 189

To remove the module bus connector
Reassemble the module in reverse order.
Always perform the "Functional check" after reassembling the module.
E-PSM(P)W module disassembly
5. Use a flat blade screwdriver to unlock the
module bus connector insulator cover.
Put the screwdriver in the hole and move the
blade backwards (away from the flex cable)
until the insulator cover unlocks.
6. Pull the module bus connector carefully
through the hole in the frame.
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Document no. 2044677-001