E4245 Cmd Rej: Card does not support command driven loopback
The card in the location specified by the loc parameter must support command driven loopback. Refer to the Maintenance Guide for a list of cards that support command driven loopback.
Recovery
Display the card type and application. Enter the rtrv-card command.
Re-enter the act-cdl command that generated this error message, specifying a valid combination of parameters. Refer to the command description in Commands User's Guide and to the Maintenance Guide for assistance.