Zte ZXA10 C300 Maintenance Manual page 69

Figure A-1 Wear the Antistatic Wrist Strap
2. Remove the cables connected to the switching and control card.
3. Use the screwdriver to unfasten the screws on the main control card in the anti-clock-
wise direction.
4. Unclasp the lever on the switching and control card to separate the switching and
control card from the back plane.
5. Grasp the lever and pull the switching and control card out along the guide rail steadily.
Note:
You should gently pull the main control card out of the backplane along the guide rail
to avoid any damage on the components of other switching and control card.
6. Put the switching and control card replaced into the antistatic bag and label it for
maintenance with the note of its name and fault.
7. Pull the new switching and control card out of the antistatic bag, and check it. Make
sure that the card is intact.
8. Pull the lever on the new switching and control card outward. Plug in the card and
push it in along the guide rail steadily.
9. Gently push in the new switching and control card till the contact point of the lever and
the shelf. Press the lever inward and push the main control card into the shelf with the
working force between the lever and the position pin on the shelf, till the switching and
control card lever is parallel to the panel.
10. Fasten the screws with the screwdriver in the clockwise direction to fix the card.
11. Connect the cables to the new switching and control card according to the recorded
order.
Result
The switching and control card is replaced successfully.
SJ-20130520164529-008|2013-06-30 (R1.0)
A-3
ZTE Proprietary and Confidential
Appendix A Card Replacement