User guide
AC-2100 User Guide    9 
UNIONCOMMUNITY Co., Ltd. / 3F Hyundai Topix Bldg. 44-3 Bangi-dong Songpa-gu   
Seoul, Korea (138-050) 
Tel : 02-6488-3000 , Fax : 02-6488-3099, E-Mail :sales@unioncomm.co.kr 
http://www.unioncomm.co.kr 
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- Fingerprint input failure 
 In case the finger is removed too early before the 
fingerprint is entered 
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- Unregistered card input 
- In case 1:N authentication is attempted when 
authentication priority is SN and a user with 1:N 
authentication permission is not available in the 
terminal 
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- Passback failure 
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- In case processing is difficult during server 
authentication because too many authentication 
requests are made from the terminal   
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- In case the same user attempts authentication more 
than twice during the same meal service hour when 
the terminal is set and used as meal service 
management 
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- In case the server is not responding during 
authentication attempt to the server 
- In case network is disconnected during 
authentication attempt to the server 
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- In case connection attempt continues because no 
registered user is available in the terminal and 
connection to the server cannot be made 
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- Waiting for card input 
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- In case authentication is attempted with proper 
registration during the time when access is not 
permitted 
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- Waiting for response after authentication attempt to 
the server 
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- In case terminal is in lock state 
- In case it is not meal service hour when setting as 
meal service management 










