Intermec Sabre 1555 Programmer's Reference Manual page 76

Sabre 1555 RFID & Bar Code Reader Programmer's Reference Manual
Table 4-24 RFID Function Commands (continued)
Note: It is important to check the correspondence between the Read/Write status and
the activated fields to see if the data is valid.
Note: If the product is powered by battery and a low battery status is detected, the
Responses
product will send the following commands:
(continued)
a PEV frame:
- PEV frame: <PEV><Event number >
- IEC (IMC not activated)
4-36
with event number = battery discharged (0x10)