3Com MSR 50, MSR 30, MSR 20 Following figure illustrates the FIC-2FXO panel, FIC-2FXO/FIC-4FXO

Models: MSR 50 MSR 30 MSR 20

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194CHAPTER 4: FLEXIBLE INTERFACE CARDS

Table 139 Interface attributes of the FIC-2FXS/FIC-2FXO/FIC-2E&M and the

FIC-4FXS/FIC-4FXO/FIC-4E&M

Attribute

Description

 

 

Interface standard

ITU Q.512-compliant subscriber circuit

 

interface (FIC-2FXS/FIC-4FXS)

 

ITU Q.552-compliant loop trunk interface

 

(FIC-2FXO/FIC-4FXO)

 

G.712-compliant E&M trunk interface

 

(FIC-2E&M/FIC-4E&M), E&M interface

 

(supporting Bell type I, II, III, and V, using

 

both two-wire and four-wire

 

implementations)

 

ITU K.20-compliant overcurrent protection

Dial-up mode

Dual-tone multifrequency (DTMF),

 

compliant with GB3378

 

(Pulse dial is not available.)

Bandwidth

300 Hz to 3400 Hz

 

 

Interface LEDs The following figure illustrates the FIC-2FXS panel:

Figure 235 FIC-2FXS panel

The following figure illustrates the FIC-2FXO panel:

Figure 236 FIC-2FXO panel

The following figure illustrates the FIC-2E&M panel:

Figure 237 FIC-2E&M panel

The following figure illustrates the FIC-4FXS panel:

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Image 194
3Com MSR 50, MSR 30 manual Following figure illustrates the FIC-2FXO panel, Following figure illustrates the FIC-2E&M panel