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114 CHAPTER 3: MULTIFUNCTIONAL INTERFACE MODULES
Figure 129 MIM-4E&M panel
Interface Cable
n
■ RJ-45 receptacles are used as external interfaces for FXS/FXO/E&M modules.
■ Telephone cables have been included in the standard shipment package of
MIM-2FXS/MIM-2FXO and MIM-4FXS/MIM-4FXO modules.
Interface cable of FXS/FXO modules
Connection cables for MIM-2FXS/MIM-2FXO and MIM-4FXS/MIM-4FXO are
telephone cables with ferrite core. For cable pinouts, see Low-End and Mid-Range
Series Routers Cable Manual.
Interface cable of E&M modules
E&M modules of H3C Series Routers support Bell I, II, III, V switches, and 2-wire &
4-wire voice signals.
It is recommended to use Bell V 4-wire voice signal to communicate with the
Router in practice.
The sequence of E&M RJ-45 pins is shown in the following figure, numbered 1 to
8 from left to right:
Figure 130 Sequence of RJ-45 pins
When connection is made in Bell V 4-wire mode, the pinouts of RJ-45 receptacles
at router side and at the switch side are shown in the following figure:
Table 74 Description of the LEDs on voice MIM panels
LED Description
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.
ACT
LINK