PRELIMINARY
Radio Description
More information about the maintenance button can be found in Indicators,
Buttons, and Switches.
5.3 Position D, Optical Indicators
Optical indicators show the system status. More information about the optical
indicators can be found in Indicators, Buttons, and Switches.
5.4 Position E and F, Interface for Optical Cable to Main
Unit
The 1 and 2 interfaces provide connections to optical cables for traffic
and timing signals between the radio and the main unit. A Small Form-factor
Pluggable (SFP)+ is used to connect the optical cable to the radio.
Note: The radio uses SFP+ modules for optical transmission and optical radio
interfaces on Data 1 (optical cable 1 in) and Data 2 (optical cable 2 out).
Only use SFP+ modules approved and supplied by Ericsson. These modules
fulfill the following:
• Compliance with Class 1 laser product safety requirements defined in
standard IEC 60825-1.
• Certification according to general safety requirements defined in standard
IEC 60950-1.
• Functional and performance verified to comply with Radio System
specifications.
Recommended SFP+ modules are obtained from the product packages for the
Radio System and the Main Remote Installation products. For more information
about SFP modules, refer to Spare Parts Catalog and Main-Remote Installation
Products Overview for more information.
5.5 Position G,
0
48 V DC Power Supply Interface
The
0
48 V DC power connection is made through a connector. The connector
accepts cables with various cross-sectional areas depending on the cable
length and the radio consumption. The values can be found in Figure 18, and
are calculated using the following formulas:
R=2×(0.02/D)
R- cable resistance
D- cable area (mm
2
)
34
181/1551-LZA 701 6001-1-V1 Uen PC3 | 2016-01-13
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