4000 Router Series Interface Module Guide

• 2/4-port voice AT0 analog trunk interface module (MIM-2FXO/MIM-4FXO) serves to access and

handle 2/4 channels of common user lines of telephone exchange.

These modules make it possible to transfer voice signals over data communication networks.

Interface attributes

The interface attributes of MIM-2FXO and MIM-4FXS/MIM-4FXO modules are shown in the following

table:

Table 94 Interface attributes of MIM-2FXO and MIM-4FXS/MIM-4FXO/

Attribute Descri

tion

Connector RJ-45

Number of connectors

• 2 (MIM-2FXO module)

• 4 (MIM-4FXS/MIM-4FXO module)

Cable

• Telephone cable with ferrite core

• E&M trunk (for E&M module, which should be made by users depending

on the actual needs at the site.)

Interface standard

• ITU Q.512-compliant subscriber circuit interface (MIM-4FXS)

• ITU Q.552-compliant loop trunk interface (MIM-2FXO/MIM-4FXO)

• ITU K.20-compliant overcurrent and overvoltage protection

Dial-up mode DTMF (Dual-Tone Multi-Frequency) but not pulse dial-up

Bandwidth 300 Hz to 3400 Hz

Interface LEDs

Voice MIM panels are shown in the following figures:

Figure 65 MIM-2FXO panel

Figure 66 MIM-4FXS panel

Figure 67 MIM-4FXO panel

Table 95 Description for the LEDs on voice MIM panels

LED Descri

tion

LINK

• OFF means no link is present; ON means a link is present.

ACT

• OFF means the channel is idle. ON means there is call activity.