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MERLIN LEGEND Communications System Release 6.1
Installation
555-661-140
Issue 1
August 1998
Installing the Control Unit
Page 2-33
Installing the Modules
Installing the Modules
!
CAUTION:
When installing the modules, use a properly grounded wrist strap
to prevent damage from electrostatic discharge (ESD), and avoid
touching leads, connectors pins, and other components.
Guidelines
Follow these guidelines when you install modules, as indicated on the
Control Unit Diagram of Form 1, System Planning:
■ Do not leave empty slots between modules. The system ignores
modules installed beyond any empty slot.
■ If a phantom module (a programmed empty slot) is indicated on
the Control Unit Diagram, make sure the slot remains empty and
do not install any modules to the right of it. The system ignores
any modules installed to the right of a programmed empty slot.
■ Make sure you install each module in its assigned slot. If you
install a module in the wrong slot, the system will not function
properly.
■ Be sure to place all 012 modules and all 008 OPT modules
without built-in ring generators in carriers with modules that have
ring generators so that the modules without ring generators can
be supported.
NOTE:
All 016 (T/R) modules and some 012 modules (apparatus code
517G13 or later) have built-in ring generators.
■ Once you have installed the power supply and the processor in
the basic carrier, use the remaining slots for the modules as
follows:
— Basic carrier: slots 1 through 5
— First expansion carrier: slots 6 through 11
— Second expansion carrier: slots 12 through 17