Juniper MX240 Hardware Manual page 323

327
As you carry the FPC, do not bump it against anything. FPC components are fragile.
Do not grasp the FPC anywhere except places that this document indicates. In particular, never grasp
the connector edge, especially at the power connector in the corner where the connector and bottom
edges meet (see Figure 109 on page 327).
Figure 109: Do Not Grasp the Connector Edge
Do not carry the FPC by the faceplate with only one hand (see Figure 110 on page 328).