NCR RealScan 7875-7000/8000 Installation Guide 
AIP-00342    Release B  06/03 
37 of 56
Isolating Sensormatic Problems 
 
Problem  Possible Cause  Corrective Action 
Does not 
deactivate tags 
Sensormatic ScanMax™ 
Pro Controller not turned 
on. 
Check the On/Off switch on the 
ScanMax™ Pro Controller for being on. 
Does not 
deactivate tags 
Sensormatic ScanMax™ 
Pro Controller is not 
properly programmed. 
Scan Restore Sensormatic Parameters 
tag. 
Does not 
deactivate tags 
Improper cable connection. 
•  Assure the Sensormatic ScanMax
TM
 
NS Pro Antenna Cable is properly 
connected to the ScanMax™ Pro 
Controller. 
•  Assure that the Sensormatic 
Communications Cable is properly 
connected to one of the RS-232 
Peripheral Ports on the back of the 
RealScan 7875 and to the POS 
connector on the ScanMax™ Pro 
Controller. 
Does not 
deactivate tags 
Faulty Sensormatic 
Interlock Cable 
•  Replace the Sensormatic Interlock 
Cable 
Does not 
deactivate tags 
Faulty Sensormatic 
ScanMax
TM
 NS Pro 
Antenna or Antenna Cable. 
Replace Sensormatic Sensormatic 
ScanMax
TM
 NS Pro Antenna. 
Does not 
deactivate tags 
Faulty Controller  Replace Sensormatic ScanMax™ Pro 
Controller 
 
The RealScan 7875 uses audio messages to identify the Sensormatic deactivation status. This 
includes voice messages and tones. 
Voice Messages 
•  EAS Online – Given when the Sensormatic ScanMax™ Pro Controller is turned on if it is 
operational and properly connected to the RealScan 7875. 
•  EAS Offline – Given when the Sensormatic ScanMax™ Pro Controller is turned off, has 
become non-operational, or becomes disconnected from the RealScan 7875. 
•  EAS Online Mode One – Given if the parameters in the Sensormatic ScanMax™ Pro 
Controller do not match those in the RealScan 7875. 
Tones 
•  Deactivated Tone – During normal operation, the RealScan 7875 can sound a tone when a 
tag is deactivated. This feature can be turned on or off with programming tags. The 
frequency, length, and type can also be programmed. 
•  Security Tag Detected – When passing an active tag around the Sensormatic Antenna, the 
RealScan 7875 produces a clicking tone similar to a Geiger counter. This can be used to 
check the size of the detection zone. This can also be turned on or off with programming 
tags.