Beijing Huahuan Electronics Co., Ltd
Huahuan
- 12 - H0EL-EthMux V8 User Manual V1.1
controlled to indicate local or remote ports LOS and AIS status. The local and
remote loop back definition is shown as Fig 3.2.2-3:
Fig 3.2.2
-3
E1 loop back
Rx
Tx can test E1 connection cable, and Tx
Rx is used to test the whole
circuit including H0EL-EthMux V8 in the two ends and the link between them.
3.2.3
Ethernet connection
Connect the uplink Ethernet port to the Ethernet transport network, such as the
wireless LAN bridge, and connect the local data port to computers or an Ethernet
switch for local data applications.
The signal definition of the two local Ethernet ports is given in Table 3.2.3-1.
Table 3.2.3-1 Ethernet signal definition
Pin
1
2
3
4
5
6
7
8
Signal RxD+
RxD-
TxD+
TxD-
Note: The ports confirm to HP auto-MDIX spec. It will automatically
adapt to parallel or crossed cables.
The signal definition of the uplink Ethernet ports is given in Table 3.2.3-2.
Table 3.2.3-2 Ethernet signal definition
Pin
1
2
3
4
5
6
7
8
Signal RxD+ RxD- TxD+
GND GND TxD- GND GND
Note: The uplink port link parallel cable to LAN bridge.
WARNING
: When connecting to a wireless LAN bridge, the uplink
Ethernet cable often connects to the outdoor unit, posing danger to lightning
strikes that can seriously damage the equipment. To protect the equipment as
well as people, surge protection devices with good earth connection is strongly
recommended. Poor earth connection may also hinder the operation of the
Ethernet port, causing severe packet losses.
Summary of Contents for H0EL-EthMux V8
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