H3C Technologies H3C MSR 50 - Manual (Page 184)

3-80
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Some measures are taken to protect MIM-2FXS/MIM-2FXO/MIM-2E&M and
MIM-4FXS/MIM-4FXO/MIM-4E&M. Still, you are recommended to install a special lightning
arrester at the input end of each connection cable to obtain better lightning protection effect when
the cable is led outdoors;
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Read the mark identifying a port before you connect a cable to it, making sure it is the correct port.
Wrong connection tends to damage interface modules and even the Router.
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As provisioned by Bell V, cables for FXS/FXO/E&M modules do not provide PGND wire. For this
reason, a loop should be formed via the earth ground between the Router and the connected
switch. In practice, the PGND wire of the switch can be connected to the chassis of the Router;
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To ensure the EMC of the whole Router, connect the end of the cable with ferrite core to the
Router.
Step1 Plug one end of the cable into the RJ-45 port on 2FXS/2FXO/2E&M;
Step2 Connect the other end of the cable to:
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Telephone set, fax or AT0 loop trunk of telephone exchange, if you have installed an FXS module;
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Subscriber line of telephone exchange, if you have installed an FXO module;
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E&M trunk of telephone exchange, if you have installed an E&M module;
MIM-2VE1
Introduction
2-port E1 voice interface module (MIM-2VE1) handles dense voice signals in a VoIP system. It provides
two CE1/PRI/R2 ports, allowing the access of 60 channels of voice signals.
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VCPM is provided to together with MIM-2VE1. You can select a VPM module as needed.
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VPM module is installed on the main board of MIM-2VE1.
Interface attributes
The interface attributes of MIM-2VE1 are given in the following table.
Table 3-68 Interface attributes of MIM-2VE1
Attribute Description
Connector DB-15
Number of connectors 2
Operating mode
CE1
ISDN PRI
R2