User's Manual

7
1-2. Remote
Remote Unit components
¾ Power Supply Unit (PSU)
¾ Power Supply Unit (PD)-PoE Option
¾ iDEN 800/900 UL/DL UDC Unit
¾ CDMA 1900 UL/DL UDC Unit
¾ TRI Band MUX Filter
¾ Main Control Unit (MCU)
¾ RU Interface Unit
The Remote UDC Module converts the RF signal into an IF signal and compensates it for the
STP or SFTP Cable loss. After the RF signal is amplified from the UDC module, it goes to all
antenna ports from the remote until.
1-3. EHU(External Hub Unit)
EHU components
¾ Power Supply Unit (PSU)
¾ RFU
¾ EHU Interface Unit
¾ Main Control Unit (MCU)
PoE Unit components (Option)
¾ PSU
¾ PSE
EHU gets converting IF signal at MHU through STP or SFTP cable. Inputting IF signal transmits IF
signal to Remote after compensating STP or SFTP cable loss through RFU of EHU.