User Manual

Technical Manual for Master Terminals of the Series IF 152x
Page 9
Terminal Equipment
The master terminals are equipped as follows:
• Proximity reader.
• Data interface to higher-ranking system (host computer, router)
Ethernet 10 BASE T network connection
Master terminals are equipped with an Ethernet 10 Base T interface. Data is transferred
exclusively with the TCP/IP data protocol.
• RAM
CMOS-RAM (battery buffered)
• D-RAM
• Flash-PROM
The Flash-PROM is used as program memory for the controller software. A special download
program allows changes to be made and the software to be exchanged without mechanical
intervention in the appliance.
• Clock module
Master terminals are equipped with a crystal-controlled clock module. During offline operation, this
clock takes over the control. In online mode, the clock is synchronized by the host computer.
• Acoustic signal transmitter
The acoustic signal transmitter can acknowledge the actuation of keys and signalize a booking
rejection as well as a positive booking decision.
• Keypad
The membrane keypad is equipped with a numeric block 0 to 9, a clear/cancel key C and an enter
key E for input acknowledgement, key left and right and 4 soft keys and 4 dedicated key.
• Housing lock
A mortise lock secures the housing against manipulation and unauthorized opening. The housing
can only be opened after the mortise lock has been pulled out.
• LCD Master terminal is equipped with a 4x20 digit display. This display serves as a source of
information for employees. Depending on the type of application and parameter settings of the
master terminal, key texts, time accounts, reasons for booking rejections, orders and general or
personal information can be displayed.
• Internal emergency power supply (Option)
The emergency power supply enables the retention of the full master terminal function during
voltage breakdown.
The emergency power supply supports all data input, data retention and communication
functionality of terminal at least for 4 hours in case of a power failure.