Beijing Huahuan Electronics Co., Ltd.
H0FL-EthMux.SA1601/SA1602 User’s Manual V1.3
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Table 2.2-3 RJ-48C and dual-E1socket signal definition (120Ω-E1/100Ω-T1)
Pin
1
2
3
4
5
6
7
8
Signal
+
-
GND
+
-
GND
E1-IN
E1-OUT
When 75Ω unbalanced interface is used, the device can use BH4.850.122
cable to convert RJ45 interface to 75Ω unbalanced interface. The ―+‖ connects
core, ―-‖ connects sheath.
E1/T1 interface provides Rx
Tx, Tx
Rx loop back operation through
network which is convenient for opening and maintain test. See loopback
definitions in 3.1.2.
2.2.5
Ethernet Port
There are four 100Base-Tx Ethernet electrical ports and one 100Base-Fx
optical port provided by H0FL-EthMux.SA1601/SA1602 device. Two Ethernet
electrical ports (Uplink) are uplink ports used to connect with transmission
network and the other two are local data ports (Data1) used to access local
Ethernet, such as switches; and one optical port (100Fx) used as either uplink
port or local data port. Ethernet electrical port (marked with Data2/NM) can use
Web Server to monitor two devices connected at both ends; or online upgrade
software and hardware. When the uplink port is accessed to the upper switch, it
also can be used for monitoring.
Ethernet electrical port supports auto-negotiation or forced 10M full /half-
duplex and 100M full/half-duplex. Ethernet optical port supports auto-
negotiation or forced 100M full-duplex mode.
Ethernet of H0FL-EthMux.SA1601/SA1602 device built-in layer-2
switches function, supporting Ethernet packet size up to 2000 bytes. It supports
multiple functions, such as port speed limited, IEEE802.3 x flow control, the
MAC address automatic learning and MAC address aging time
function set etc.
