User Manual

Network Concentrator User and Installation Guide 98-1013 Rev AF 117
G
Field Upgrade to DCW 1.16F
This appendix contains information about upgrading Concentrator Gridstream radios that are within
the field to DCW version 1.16F. It covers the following sections:
• Changing 9QPR-based MCC to a Gridstream-based Concentrator
• Upgrading DCW and Losing Default Destination
Changing 9QPR-based MCC to a Gridstr eam-based
Concentrator
When replacing a 9QPR-based MCC with a RF mesh-based Concentrator, communication between
host and the new Concentrator is established as soon as the DCW begins sending Concentrator
Registration Messages. Once the host receives a Concentrator Registration Message, through
whichever Collector the DCW has chosen, the host will discover the device.
Upgrading DCW and Losing Default Destination
Before you get started upgrading, make sure you complete the following recommended steps to
avoid protection errors as well as other upgrade errors.
1. Read the current DCW’s default destination.
Verify that the number is identical to the current DCW. Failure to do so
can cause major read pr o b le ms.
2. Load 1.16F into the radio.
3. Restore the address to the new DCW.
Upgrade Issues
Default Destination
If you override or lose the default destination, the DCW waits for the installer to assign a destination.
If a designation is not assigned, the DCW will query its neighbors and select the nearest collector. A
Concentrator Registration Message is sent through the selected collector with the shortest response
time. This will likely be the same Concentrator it was sending to before. If it is a new Concentrator
that is attached to the same System Controller as the original one, things will still work. System
controllers are randomly associated with Concentrators. There is no guarantee that a Collector within