Справочник Пользователя для Andrew Wireless Innovations Group RPT-MR303V-90

User’s Manual for Repeater 

MR303D Varia

M0041A8B.doc

Id.-No. 153114

Page 12

26-Oct-2000

The socket for the DC supply is located next to the RF connector to/from the BTS.
Power supply voltage is 6.7 Vdc, current is 1.6 A typ for Id.-No.: 152796 and 2.5 A
for Id.-Nos.: 152797 & 154595.

There are two possibilities to provide the MR303D Varia with power:

Ø  Use external power supply and connection to the DC socket of the repeater. (Use

only the power supply that is delivered with the unit).

Or:
Ø  Bias the MR303D Varia via the cable to the RF port to/from BTS. Ensure that the

correct voltage is fed into the repeater.

F

 

The LED to the left (DC alarm) can show green or red light:

Ø  Green indicates the normal operation of the repeater. Power is present and the

current consumption of the unit is within the specifications.

Ø  Red indicates that the current consumption of the repeater is not within defined

limits and that the repeater might not work properly. If the LED is off, the
MR303D Varia does not receive any DC power.

The right hand LED is the ALC/APAC alarm LED:

Ø  LED “on” indicates that the input power received by the repeater is too high.

The output power of the repeater must be limited. This can be either done by the UL
ALC or APAC, or the DL ALC. Limitation of power ensures that the final stage is not
overdriven and that intermodulations are kept below the CEPT limits (- 36 dBm).