User's Manual

Confidential & Proprietary 13/30 SC-DAS
(a)AC/DC (b)DC/DC
Figure 2.4– PSU Outer Look
3) Remote Optic(R-OPT)
Remote Optic converts optical signals into RF signals and performs vice versa. With an FSK modem
in it, the unit communicates with upper devices.
It also has internal ATT to compensate for optical cable loss. Optical wavelength for TX path is
1310nm, for Rx path is 1550nm. It can be transported by a optical strand using WDM(Wavelength
Division Multiplexing) technique
4) Remote Central Processor Unit (RCPU)
RCPU can monitor and control RU. This unit receives and analyzes upper communication data from
Remote Optic and reports the unit's own value to upper devices. At the bottom of the module, it has
LED indicator to show system status, letting you check any abnormalities at a time. At the same
pannel, it also has communication LED Indicators to show communication status with upper devices.
Through USB Port, the unit enables you to check and control device status through PC and laptop.
This equipment is indoor use and all the communication wirings are limited to inside of the building.
RCPU of MRU have two port to connect exteranl devices which one is for ARU and the other is for
VHF&UHF ARU. Using external interface cable, MRU can communicate with ARU/VHF&UHF ARU.
MRU collects status information from ARU/VHF&UHF ARU and then communicate with upper device