Technical data
PAGE 138 
Alarme
Flash-EPROM Pro-
gramming Error
The Flash-EPROM can not be pro-
grammed.
• This error can occur when storing 
parameters. If the error still oc-
curs, then there is probably a 
hardware error. Contact our sup-
port.
No system clock The system clock is faulty. • Check the Extension bus cable at 
the Slave systems.
• If the error still occurs at the Mas-
ter system, then there is probably 
a hardware error. Contact our 
support
No connection to 
MAGIC ISDN Tele-
phone Hybrid! Please 
check the COM Port 
and/or the RS232 cable
The RS232 connection between the 
PC and the Master system is faulty.
• Is the RS232 cable connected to 
the PC?
• Is the defined COM-Port (see 
CHAPTER 7.3, page 41) correct?
• Is the RS232 cable connected to 
the Master system?
• Is the Master system switched on?
• Was a Null modem cable (Pin 2 
and Pin 3 crossed) used?
TAB. 11 ALARM LIST
Error message Meaning  Possible reasons/debugging










