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3Com Router 5000 and Router 6000 v2.41
Module Guide
Chapter 4 Flexible Interface Cards (Router 6000)
4-25
Figure 4-28 75-ohm 4E1 adapter cable
Note:
Both 75-ohm 4E1 and 120-ohm 4E1 adapter cables are required for Router 4-Port CE1/PRI FIC.
In addition, you are available with 75-ohm-to-120-ohm adapters.
4.7.5 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.
Table 4-16 DIP switches and E1 interfaces of the FIC-E1/FIC-E1-F cards
Card Router 4-Port CE1/PRI FIC
DIP switch S1 S2 S3 S4
Controlled E1
interface
Interfa
ce 0
Interfa
ce 1
Interfa
ce 2
Interfa
ce 3