H3C MSR 20 Series Manual page 145

Interface card and interface module
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Interface Card and Interface Module Manual
H3C MSR 20/30/50 Series Routers
Table 3-39 Pinouts of E&M interface cable (Bell V 4-wire)
RJ-45 Pin
1
2
3
4
5
6
7
8
Note:
Because it is hard to determine the type of the switch to be connected and its
connectors, interface cables of MIM-2E&M/MIM-4E&M modules have to be prepared
according to the on-spot conditions or by the user. To ensure the EMC of the Router,
install a ferrite core near the connector of the prepared E&M module interface cable by
the router side.
Router side
RJ-45 interface signal
SB (negative power supply)
E
RING0
RING1
TIP1
TIP0
M
SG (negative power supply
ground)
3-61
Chapter 3 Multifunctional Interface Modules
Signal at switch side (Bell V 4-wire)
M
RING0
RING1
TIP1
TIP0
E

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