2E1 to 2Eth Converter
１４
2)
E1 interface with 120
Ω
.The rear panel as follows:
Power supply
Power supply has Ac220V/DC-48 compatible which can be selected by the
users.
If the user need -48V , Set AC/DC switch to
“
DC-48V
”
.If the user need 220V,
Set AC/DC switch to
“
AC220V
”
.
When power supply is
–
48V, positive polarity of unit should be connected
with positive polarity of the power supply in the room. And so does the negative
polarity.
E1 interface
Users can select the line according to requirement.
E1 line with 75
Ω
: Offer two interfaces with impedance of 75
Ω
.
E1 line with 120
Ω
：
Provides four E1 interfaces with 120
Ω
for user to select.
ETH interface
：
Ethernet interface is a standard MII interface. Two Eth interfaces are available on
the rear panel. Cross and direct connection cable auto-negotiation for Ethernet
interface. Supports flow control of full duplex PAUSE. Pins of Ethernet interface
are 1, 2,3 and 6
。
