Insys Modem 336 LL 2D 5.0 11-02-01-01-31.018 Manuale Utente

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Basics 
 
INSYS Modem 336 LL  
i-modul Modem 336 LL 
 
4
 
 
 
 
 
 
 
 
 
 
 
 
Aug-06
 
Basics 
Leased line modems are used when a permanent connection between two data termi-
nals is required. 
For these connections no regular switched line is used, but a dedicated (leased) line. This 
can either be a line leased from Telekom, or just an unused pair e.g. on the premises. 
Leased line modems establish a connection via such a two wire line immediately after 
being switched on. 
Leased lines are sometimes “serviced” which means they don’t represent a direct two 
wire connection. The end terminals are supplied using a power supply unit. 
The INSYS Modem 366 LL / i-modul 336 LL supports both variants. They operate polarity-
independent which means that a1 and b1 are interchangeable. 
The two wire connection is the most used connection type. 
Unserviced line 
 
 
 
 
 
Serviced line 
 
i-modul 336 LL / 
INSYS Modem 336 LL 
Originate 
i-modul 336 LL / 
INSYS Modem 336 LL 
Answer 
LA 
LB 
LA 
LB 
LA 
 
 
LB 
i-modul 336 LL / 
INSYS Modem 336 LL 
Originate 
i-modul 336 LL / 
INSYS Modem 336 LL 
Answer 
LA 
 
 
LB