Siemens SIMATIC HMI Operating Instructions Manual page 75

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Note
Only use the connection bay to insert the memory card and bridging battery! Do not insert
any other objects in the connection bay.
Notes for closing
CAUTION
Damage to thread
The HMI device housing is made of plastic. Therefore, the mounting hole threads cannot
handle the same amount of stress as a comparable metallic housing. If the screws are
tightened more than 20 times, there is risk of damage to the threads.
Do not exceed 0.4 to 0.5 Nm of torque when tightening the screws.
NOTICE
Damage to wiring at charging contacts
When closing the connection bay cover, be careful not to trap the wiring at the charging
contacts.
Mobile Panel 277F IWLAN
Operating Instructions, 12/2007, A5E01003940-01
Connection bay cover
Rubber seal
Wiring to charging contacts
Antenna
Contacts for main battery
Installation and connection
4.7 Connecting the HMI device
75