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MIM-1VT1 Module 125
■ The peer device directly, if the resistance of the port to be connected is
120-ohm, and there is no need to extend the cable;
■ A network interface connector and then the peer device using another E1
120-ohm balanced twisted pair cable, if the resistance of the port to be
connected is 120-ohm, and there is a need to extend the cable, as illustrated in
the following figure.
Figure 142 Extending E1 120-ohm balanced twisted pair cable
■ The peer device using a 75ohm-to-120ohm adapter, if the resistance of the
peer device is 75-ohm;
Step 3: Check the behavior of the LINK LED on the MIM-1VE1 panel. It is OFF
when fault has occurred on the link. In this case, please check the link.
MIM-1VT1 Module
Introduction 1-port T1 voice interface module (MIM-1VT1) can handle dense voice signals in
VoIP system.
MIM-1VT1 module is structured in the form of board plus VCPM card plus VPM
strip. It provides a CT1/PRI port, allowing the access of 24 channels of voice
signals.
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■ VCPM is provided to users together with MIM-1VT1. Users can select VPM
module as needed.
■ VPM module is installed on the main board of MIM-1VT1.
Interface Attributes The interface attributes of MIM-1VT1 are given in the following table.
Router
Voice
Device
DB-15
Network interface
RJ-45
RJ-45
120-ohm balanced
120-ohm E1
trunk cable
twisted pair cable
connector
Table 84 Interface attributes of MIM-1VT1
Attribute Description
Connector RJ45
Number of connector 1
Interface standard G.703/T1.102
G.704
AT&T TR 54016
AT&T TR 62411
ANSI T1.403