This program is used to manage multiple
libraries; STANDARD,TTL,USER and/or any
user created library.

The Standard library has a selection
of parttypes, decals, and 2d-lines 
that CAD-Software Inc has provided with 
the PADS-PCB program. As a rule you 
should not modify or add items to the
standard library.

The User library is supplied to you with
no items in it.  Any new parttypes, decals
or line items should be added to this 
and/or any user created library.  

The TTL library is supplied to you with
parttypes and decals that CAD-Software
Inc. has provided with the PADS-PCB
program. As a rule you should not modify
or add items to the TTL library.
Note: This library has no lines items.

When you reference the library via the
PADS-PCB program the sequence of which 
the libraries are searched is dictated
by the PLIB.DAT file. 

Both the standard and TTL libraries 
should not be updated by the user. 
This will prevent any additional 
parts that the user may have
added to the libraries from being 
deleted when a new update is loaded.

Below is a list of library files
that should be backed up periodically.
This will ensure that if the computer 
loses power and causes the library
to be corrupted that you can replace
it with a backup copy.

NOTE: STD can represent any customer
generated library.

      STANDARD LIBRARY
STD.LN  -- Lines Library
STD.PD  -- PCB Decal Library
STD.PT  -- PartType Library
STD.LD  -- Logic Decal Library






