XBee-Pro 900 (API): Delivery Status byte only has 2 values

XBEE-PRO XB09-DP Firmware version 1002 Hardware version 1B42

In the documention for the TX Status packet (0x8B) (page 33), there are 8 possible return values for the Delivery Status byte.

I have seen only 0 (success) returned, and 1 (undocumented – but it happens when I turn off the remote radio). I tried to self-address a packet (sent it to myself) to see if that would result in a Delivery Status of 0x23 as indicated in the documentation, but 0 (Success) was returned instead.

Example: (self addressed)

Sent: 7E 00 19 10 06 00 13 A2 00 40 53 86 B4 AB AD 00 08 48 65 6C 6C 6F 20 77 6F 72 6C 64 CB
Rcvd: 7E 00 07 8B 06 FF FE 00 00 00 71
7E 00 17 90 00 13 A2 00 40 53 86 B4 FF FE 00 48 65 6C 6C 6F 20 77 6F 72 6C 64 B4

Example: (addressed to remote node that is turned on)

Sent: 7E 00 19 10 05 00 13 A2 00 40 53 86 E2 AB AD 00 08 48 65 6C 6C 6F 20 77 6F 72 6C 64 9E
Rcvd: 7E 00 07 8B 05 FF FE 03 00 00 6F

Example: (addressed to remote node that is turned off)

Sent: 7E 00 19 10 08 00 13 A2 00 40 53 86 E2 AB AD 00 08 48 65 6C 6C 6F 20 77 6F 72 6C 64 9B
Rcvd: 7E 00 07 8B 08 FF FE 03 01 00 6B