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DK424 Release 4.0 Upgrade Programming Example

The following examples show the type of programs and data that must change when upgrading 
from DK14/DK16e/DK40 Release 1 and DK280/DK424 Release 1~Release 3 to DK424 
Release 4.0. These program changes are required to make the Strata DK operate the same after 
the upgrade as it did before; thus making the upgrade transparent to the end user. The changes 
apply to all DK424 Release 4.0, RCTU processors: RCTUA, RCTUB, RCTUBA/BB,
RCTUC/D, and RCTUE/F.

Basically, any program that has station ports as data needs to change if the station port 
numbers are higher than the pre-upgrade DID/Tie line port numbers. The examples shown 
here represent the types of DK programs that require changes when upgrading to Release 4.0. 
They are not meant to show all programs since the principles of program changes are the same 
for each program type.

The program examples show required programming changes (when upgrading to a DK424 
Release 4.0 and above processor) can be complex when a system has DID and Tie lines.

The following examples show the program changes required when upgrading RCTUE3/F3 to 
RCTUE3/F4. The DKAdmin Cabinet Drawing and System/Station Administration Screen for 
this example are provided in 

Figures 33

~

34

. 

These programs show the relationship between physical and logical ports. When upgrading to 
Release 4.0, these relationships remain the same unless ports have been swapped prior to the 
upgrade. If the swapped port numbers shift during the upgrade, they must be renumbered in 
Programs 01 and 02. If the swapped ports do not shift during the upgrade, they remain the 
same after the upgrade.

In this system configuration, ports 013 and 017 are swapped prior to the upgrade (see 

Figure 

33

). After the upgrade, port 013 shifts to 009 and 017 shifts to 013 (see Figure C-4), therefore 

after the upgrade port 009 is swapped with port 013. Notice that before and after the upgrade, 
the Play Room telephone is on the second PDKU circuit in slot 14 and to call the Play Room 
Telephone you must dial 117 - making the upgrade transparent to the end user. 

There is no change to the data in this program when upgrading to Release 4.0; however the 
RDDU DID lines are not allocated ports after the upgrade (see 

Figures 31

 and 

32

).

Data in this program must be changed to adjust for port shifting caused by the RDDU DID line 
PCB in slot 13 (see 

Figures 33

 and 

34

):

Port 000-007; Data 100-107

Port 000-007; Data 100-107

Port 008-015; Data 108-115

Port 008-015; Data 112-119

Port 016-019; Data 116-119

Port 016-019; Data Blank