Module installation 47
Continue with the following procedure to install the DR3 Feature
Cartridge assembly in the customer’s KSU.
1. Make sure that the KSU power is OFF before installing or
removing the DR3 Feature Cartridge assembly.
2. Make sure you are wearing a grounding strap when handling
a cartridge.
3 .
Insert the DR3 Feature Cartridge assembly into the KSU.
Once you have completed the upgrade to DR3 you can continue
with the next procedure to upgrade from DR3 to DR5 software.
Upgrading from DR3 or DR4
1.
2.
3.
Ensure that there is no call activity by informing all
users that the system will briefly be out of operation.
Turn OFF the KSU power (unplug the power cord).
While wearing a grounding strap, remove the Feature
Cartridge from the KSU.
4.
Remove the Software Cartridge from the Data Cartridge.
5.
Insert the new Software Cartridge into the Data Cartridge.
6.
Insert the new Feature Cartridge into the KSU.
7. Turn ON the KSU power (plug in the power cord)-.
Modular DR5 Installer Guide
Содержание DR5
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