8
Note:
when the test LED on, the normal communication will be terminated
During the PATT model testing, the circuit should be cycle by itself,
otherwise, the PATT code can’t come back.
5.4 Display of the rear panel
Rear panel（AC 220V）
Real panel（DC -48V）
Power of AC220V/ DC-48V is suitable for the device. If the power of
DC-48V is used, the positive and negative terminal can be optional because there is
the self-test circuit for the polarity inside the device.
Note:
TX
—— E1 75Ω unbalance/120 balanceΩ, Transmit BNC/RJ45 Interface
RX
—— E1 75Ω unbalance/120 balanceΩ, Receive BNC/RJ45 Interface
10/100Base-T
—— 10/100Base-T Interface, RJ45
5.5 Dial code in the panel
On the panel, there are 8 digital DIP switches to set E1 clk.
