HP 81200 Installation Manual page 32

Setting up a proprietary System
Setting up an Extended HP 81200 System based on HP E4849A/B and HP E4848A/B Mainframes
4. Unscrew the 7 screws securing the side panel of the module. A TORX No. 362 screw driver is
required.
Figure 21 Unscrew the 7 screws of the HP E4805A Clock Module to open it
5. Put the opened clock module, with its front panel on top, vertical in front of the racked mainframes
Figure 22 Put the Clock Module in front of the racked mainframes
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Unscrew the 7 screws
Here the TORX screw driver
is required
See detail in the
next figure