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166 CHAPTER 4: FLEXIBLE INTERFACE CARDS
Figure 203 75-ohm 4E1 adapter cable
n
Both 75-ohm 4E1 and 120-ohm 4E1 adapter cables are required for
FIC-4E1/FIC-4E1-F. But E1 cables are optional, and please order together with
FIC-4E1/FIC-4E1-F; by default, they are not provided.
In addition, you are available with 75-ohm-to-120-ohm adapters.
Internal DIP Switch The FIC-E1 and the FIC-E1-F cards provide internal DIP switches, the setting of
which decides interface impedance and the grounding mode.
By default, all the DIP switch BITs are placed to the position of ON, as illustrated in
the following figure:
Table 114 DIP switches and E1 interfaces of the FIC-E1/FIC-E1-F cards
Card
FIC-1E1/F
IC-1E1-F FIC-2E1/FIC-2E1-F FIC-4E1/FIC-4E1-F
DIP switch S1 S1 S2 S1 S2 S3 S4
Controlle
d E1
interface
Interface
0
Interface
0
Interface
1
Interface
0
Interface
1
Interface
2
Interface
3