GSS HMM 470, Руководство по сборке

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- 6 - HMM 470 / HMM 470 OIRT / HMS 470
3 Installation
– Ensure the head-end station is mounted so it will not be able to vibrate.
Avoid, for example, mounting the head-end station onto a lift shaft or any
other wall or floor construction that vibrates in a similar way.
– Before installing or changing a module, switch off the head-end station or
unplug the power cable from the mains power socket.
Take measures to protect against ESD!
• Open the housing of the head-end station in accordance with the assembly
instructions for the STC 160.
3.1 Installing the modulator module
– Always position modules which belong together next to each other. The
modulator module must be installed to the right of the digital module or an
add-on module.
– When installing a module, make sure that it is inserted in the long numbered
grooves in front of the contact strip on the board at the rear wall of the hous-
ing.
The shorter, not numbered grooves without contact strip on the board at the
rear wall of the housing are for add-on modules only.
• Open the housing of the head-end station in accordance with the assembly
instructions for the STC 160.
• Open the locking device 1 in the direction of the arrow.
1
—> Slots 1 (digital module) and 2 (modulator module) are shown in the
following figure. The open slot in between (without a contact strip
on the board at the rear wall of the housing) is intended for an add-
on module.