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Interface cables and connection methods
For more information about T3 interface cables, see "E3/T3 interface."
ISDN BRI interface module
• FIC-4BSE
FIC-4BSE
Introduction
The four-port ISDN BRI interface module (FIC-4BSE) transmits, receives, and processes four
channels of ISDN BRI S/T data traffic on ISDN BRI S/T interfaces.
The FIC-4BSE differs from the FIC-4BS only in the way they set matched resistance for an ISDN BRI
S/T interface. The FIC-4BS uses jumpers while the FIC-4BSE uses DIP switches.
The FIC-4BSE can operate in dial mode or leased line mode.
Interface specifications
Table 201 Interface specifications
Connector RJ-45
Number of connectors 4
Cable ISDN S/T cable
Protocol & standard ITU-T I.430, Q.921, Q.931
Operating mode
• ISDN dial-up
• ISDN leased line
Supported service
• ISDN
• ISDN supplementary services
• Multi-user number
• Sub-addressing
• Backup
Jumper settings
The FIC-4BSE uses jumpers to set matched resistance for ISDN BRI S/T interfaces. The use of
100-ohm resistance on an ISDN BRI S/T interface depends on jumper settings. By default ,the
jumpers are placed over jump pins 2 and 3, and 100-ohm matched resistances are not used. Figure
139 shows the jumper settings, where all the ISDN BRI S/T interfaces are using 100-ohm resistance.
Figure 147 Jumper settings of the FIC-4BSE (example)