Chapter 5: Installation
118 EST3X Technical Reference Manual
Option cards
Hardware layer option cards are installed in the last three card addresses on the
electronics chassis. See the “Panel components” section on page 10 for a list of
panel options and accessories.
Notes
• If there are empty card addresses on the chassis, consider installing
4X-LRMF Local Rail Module Filler Plates to fill up the spaces.
• If a control-display module will not be installed over an option card, you can
attach a 4X-DR Blank Door to the card. Refer to the 4X-DR Blank Door
Installation Sheet (P/N 3101895) for more information.
• If the project requires a 3-MODCOM option card, see “3-MODCOM Modem
Communicator module” on page 130 for configuration instructions as well as
the installation sheet received with the module.
4X-LCD and 4X-LCD-LC User Interface
The 4X-LCD(-LC) is an operator layer module that interfaces with the SFS1-CPU
to provide indicators and user controls for the control panel. Only one
4X-LCD(-LC) is required to provide a point of control for the entire network.
However, additional user interfaces can be added to any EST3X control panel in
the EST3X network to provide additional points of control. Refer to the 4X-LCD
and 4X-LCD User Interface Installation Sheet (P/N 3101767) for installation
instructions and specifications.
4X Series control-display modules
4X Series control-display modules are operator layer modules that provide
additional operator interface capability. They can be mounted on any of the last
three card addresses on the SFS1-ELEC chassis (see Figure 27 on page 117).
Refer to the 4X Series Control-Display Module Installation Sheet
(P/N 3101777) for installation instructions and specifications.
Digital audio subsystem
WARNING: Electrocution hazard. To avoid personal injury or death from
electrocution, remove all sources of power and allow stored energy to discharge
before installing or removing equipment.
Caution: Circuit boards are sensitive to electrostatic discharge (ESD). To avoid
damage, follow ESD handling procedures.
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