H3C Technologies H3C MSR 50 - Manual (Page 228)

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Figure 4-39 120-ohm 4E1 adapter cable
Figure 4-40 75-ohm 4E1 adapter cable
Both 75-ohm 4E1 and 120-ohm 4E1 adapter cables are required for FIC-4E1/FIC-4E1-F. However, E1
cables are optional. Order them 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 modules provide internal DIP switches, the setting of which decides
interface impedance and the grounding mode.