Anda Telecom FE1 사용자 설명서 - 페이지 7

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If the power supply is -48V, connect the device + pole with power GND

pole, the device – pole with power -48V:

NOTE:

Please check the power polarity carefully, and connect after everything is

confirmed. Otherwise the equipment may be caused the forever damages

and we won't take any responsibility because of this!

2.2.2 E1 Interface

E1 75

75Ω unbalanced E1 interface connector are BNC connector, RX indicate

E1 input, TX indicate E1 output;

120

balanced E1 interface connector is RJ45 connector, the pin

assignment definition as follows:

120Ω balanced E1 interface pin assignment:

Definition

Table 3. Pin assignment of 120Ω balanced E1 interface

User Manual

Fig 5. Sketch map of DC-48V connection

/120

control switch

STATE

75 /120

120 Ω balanced interface

Table 2. Definition of E1 75 /120

Fig 6. Sketch map of RJ45 connector

TxD+

TxD-

INTERFACE

balanced interface

switch

RxD+

RxD-

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