Huawei SmartAX MA5600T Hardware Description page 533

SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
Figure 3-100 Layout of the jumpers on the H802EDTB board
The jumpers support the following functions:
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Table 3-78
Table 3-78 Jumper settings of the H802EDTB board
Jumper
J15, J16, J17,
and J18
Issue 24 (2018-07-30)
J21
J18
J17
J11
Jumpers J15, J16, J17, and J18 are used to set whether to ground the shield layer of the
E1 port.
– The jumper caps should be removed (which means ungrounded) if the transmit and
receive resistance is 120 ohms.
– The jumper caps should be installed (which means grounded) if the transmit and
receive resistance is 75 ohms.
Jumpers J11 and J21 are used to query through software whether the shield layer of the
E1 port is grounded. The setting of jumper J11 must be the same as that of jumper J21.
It is recommended that the settings of jumpers J15, J16, J17, and J18 be the same as
those of jumpers J11 and J21.
describes the jumper settings for the H802EDTB board.
Setting
Connected
Disconnected
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Indication
The shield layer of the E1 port is
grounded.
The shield layer of the E1 port is not
grounded.
3 Board
Default
Setting
Connected
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