6: Option Cards
Installing the Expansion Module
Warning: Installing and removing the expansion module can expose dangerous
voltages that can cause electric shock resulting in injury or death.
Disconnect all power before installing or removing the option card.
Dangerous voltages may be present in the expansion module and in the
unit even when the power is disconnected.
Note1: Follow good ESDprecautions when handling this board.
Note2: You must install the Expansion Module in one of the lower option bays.
To install the optional Expansion Module:
1. Set the unit up on a clean, safe, stable work surface that provides good visibility and
maneuverability to work with screwdriver.
2. On the back panel, select an option bay and unscrew the retaining screws and remove
the small aluminum panel from the bay.
3. Line up the edges of the module with the guide grooves in the option bay and slide it in.
4. When the card is in almost all the way, push it firmly the rest of the way in until the face-
plate of the option card is flush with the back panel.
5. Insert and tighten the retaining screws so the expansion module is secured in place.
To remove the expansion module, remove the screws, pull the card out, and secure the
small aluminum panel in its place with the screws.
Configuring the Expansion Module
Each of the Expansion Module’s outputs can be independently configured to generate a
signal type. This is done using jumpers and switches located on the module. Symmetricom
configures the output signals at the factory per the customer sales order.
Page 154 of 221 .................................098-00116-000 Rev. A
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