User's Manual

Confidential & Proprietary 22/26 SC-DAS
3.1.3 Optical Cabling
The MRU makes the optical-RF conversion of TX signals from upper the ODU and OEU as well as the
RF- optical conversion of RX signals. The MRU has one optical module in it. As WDM is used in the
R_OPT module, two separate wavelengths (TX:1310nm, RX:1550nm) can be sent/received with one
fiber strand at the same time. The MRU has SC/APC connectors.
To prevent the fiber interface from being marred with dirt, it should be covered with a cap when not
installed. Fiber connectors should be cleaned alcohocol to remove dirt before installation .
Figure 3.11 – ROU optical Port view
Only the MRU has optical port; there is no optical port on the ARU
3.1.4 GND Terminal Connection
TheROU has one GND terminal port on bottom side, as shown below