You're looking for information on the Motorola GM950 Plus programming software. Here's what I found:

Using mismatched CPS versions (e.g., GM950 software for a GM950 Plus) can permanently corrupt the radio’s firmware, requiring a costly chip replacement.

By following these recommendations, users can ensure that they are getting the most out of the Motorola GM950 Plus programming software and optimizing the performance of their two-way radios.

: A compatible cable is essential. Common options include: Go to product viewer dialog for this item.

to convert PC serial signals to levels the radio understands. Some "RIB-less" cables have this circuitry built into the DB9 connector. System Configuration Tips