Vertical Edge 120 Instruction Manual Page 11

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DX-120 Programming Manual UPGRADING AN EXISTING SYSTEM
UPGRADING AN EXISTING SYSTEM
Occasionally you may need to perform maintenance programming or install an upgrade to an existing system. The
information provides you with some of the issues you need to consider when maintenance or upgrading needs to be
performed on the current system:
When you are upgrading an existing system, the database is already in place and functional.
You may want to program your changes off-line using PC-DBA on a laptop, and then download the newly modified
database to the system.
When you use this method, be sure to perform a RECEIVE ALL command first to overwrite the database currently
on your laptop with the database the switch is using.
After receiving the database from the switch (see above item) make your programming changes to the laptop
database, and when you are finished perform a SEND ALL to upload the new modified version onto the DX-120
switch.
CAUTION
If you fail to perform a RECEIVE ALL before you make your programming changes
and you then perform a SEND ALL, the system writes over the switch database
with whatever DX-120 database resides on your laptop.
Use care that you do not overwrite the current site’s database with a database
residing on your laptop from your previous customer site.
It is a good practice to always perform a RECEIVE ALL when first arriving at a new
customer site or prior to modifying your customer’s database.
During a hardware upgrade, you need to add the new hardware and then program the corresponding feature set
in the existing database.
There are specific procedures to follow when adding new hardware to an existing system. See the Vertical DX-
120 Installation and Maintenance Manual available on the Vertical CCC web site (www.vertical.com/ccc).
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