Honeywell Xenon 1902HC Quick Start Manual page 7

Quiet Operations
The following codes configure the scanner and base to quiet modes
for scanning that does not disturb resting patients.
Silent Mode with Flashing LED
Scan the following bar code to completely silence the base and
scanner. When a bar code is scanned, the LED and aimer flash 5
times. Green indicates a good scan, red indicates a bad scan.
Silent Mode with Flashing LED
Silent Mode with Long LED
Scan the following bar code to completely silence the base and
scanner. When a bar code is scanned, the LED and aimer remain
solidly lit for 1 second. Green indicates a good scan, red indicates a
bad scan.
Silent Mode with Long LED