This read-only object reports the installed data-rate capability tier: base 512 kbps(0), up to 2048 kbps(1), up to 5000 kbps(2), or up to 9980 kbps(3). This is a licensed/hardware capability ceiling rather than a configurable setting -- it determines the maximum value that can actually be accepted by cdm570TxDataRate or cdm570RxDataRate on this unit, so a unit reporting base512kbps(0) here cannot be pushed to a 5 Mbps link regardless of what rate is attempted in those objects. If a site needs to be upgraded from a 2 Mbps to a 5 Mbps service, an admin must first confirm this object reports at least upto5000kbps(2) on that unit, since a unit still licensed only for upto2048kbps(1) would need a rate-key upgrade before the higher rate could be configured.