
 31
D
ESIGN
S
PECIFICATIONS
O
PERATIONAL
Light Source  Visible Laser Diode 650 nm 
Laser Power:  Less than 1 mW (peak) 
Depth of Scan Field:  0 mm - 203 mm (0" - 8") for 
0.330 mm (13 mil) bar code at default settings 
Scan Speed:  72 scan lines per second 
Scan Pattern:  Single scan line 
Minimum Bar Width:  0.127 mm (5.0 mil) 
Long Range: 0 mm – 279 mm ± 51 mm (0" – 11" ± 2") 
Infrared Activation:  Short Range: 0 mm – 102 mm ± 25 mm (0" – 4" ± 1") 
Decode Capability:  Autodiscriminates all standard bar codes for others call 
a Metrologic service representative 
System Interfaces: 
RS232, PC Keyboard Wedge, Stand-Alone Keyboard, 
RS485 IBM 468X/469X, Light Pen Emulation, Laser 
Emulation, RS232 with DSR, Low Speed USB (Serial 
Emulation or Keyboard Emulation), Full Speed USB 
Print Contrast:  35% minimum reflectance difference 
Number Characters 
Read: 
Up to 80 data characters  (Maximum number will vary 
based on symbology & density) 
Roll, Pitch, Yaw:  42°, 68°, 52° 
Beeper Operation:  7 tones or no beep 
Green* LED  laser on, ready to scan 
Red* LED  good read 
ON, CodeGate button is inactive  
Visual Indicators: 
Default Settings  Yellow LED 
(MS9540 Only)  OFF, CodeGate button is active 
* In some custom units, the standard green LED has been replaced with a blue LED 
and the red LED has been replaced with a white LED.
Specifications are subject to change without notice.