H3C Technologies H3C MSR 50 - Manual (Page 181)

3-77
z
2/4-port voice E&M analog trunk interface module (MIM-2E&M/MIM-4E&M) serves to access and
handle 2/4 channels of E&M analog trunks.
These modules make it possible to transfer voice signals over data communication networks.
Interface attributes
The interface attributes of MIM-2FXS/MIM-2FXO/MIM-2E&M and MIM-4FXS/MIM-4FXO/MIM-4E&M
modules are given in the following table:
Table 3-65 Interface attributes of MIM-2FXS/MIM-2FXO/MIM-2E&M and
MIM-4FXS/MIM-4FXO/MIM-4E&M
Attribute Description
Connector RJ-45
Number of connectors
z
2 (MIM-2FXS/MIM-2FXO/MIM-2E&M module)
z
4 (MIM-4FXS/MIM-4FXO/MIM-4E&M module)
Cable
z
Telephone cable with ferrite core
z E&M trunk (for E&M module, which should be made by users depending
on the actual needs at the site.)
Interface standard
z
ITU Q.512-compliant subscriber circuit interface (MIM-2FXS/MIM-4FXS)
z
ITU Q.552-compliant loop trunk interface (MIM-2FXO/MIM-4FXO)
z G.712-compliant E&M trunk interface (MIM-2E&M/MIM-4E&M), E&M
interface (supporting Bell type I, II, III, V, and support 2-wire and 4-wire).
z
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 3-91 MIM-2FXS panel
ACT
LINK
Figure 3-92 MIM-2FXO panel
ACT
LINK
Figure 3-93 MIM-2E&M panel
ACT
LINK