Maintenance Guide

Cobham Wireless
idDAS Installation and Maintenance Guide 00109GU Rev. 2.0
Page | 13
1.3.4.2 idRU Front Panel Elements
The interface panels of idRU models may differ according to the number of antenna ports and other criteria.
Figure 1-20 provides a typical example of a medium power idRU.
Figure 1-20. Example of an idRU Medium Power Panel
INTERFACE
DESCRIPTION
Power
Power feed: 100-240V~ 50/60Hz, or 48V DC
MAIN
CPRI interfaces towards MSDH. Use Cobham Wireless SFP+ plug-in interfaces (ordered
separately). Be sure to match the SFP used in the corresponding MSDH port.
AUX1
CPRI interfaces for cascading idRU units by interconnecting their MAIN and AUX-1
ports. Us
e Cobham Wireless SFP+ plug-in interfaces (ordered separately).
SERVICE
Mobile antenna connection, where the interface differs according to idRU type:
x idRU-30: 7/16 DIN RF connector
x
idRU-40: 4.3-10 RF connector
LAN
RJ45 Ethernet port for IP backhaul connection.
EXT ALARMS
x
An aperture used for routing up to four external alarms internally to the repeater
where they are connected. This requires opening the repeater door. Detailed in
Section 5.7.1.
x
idRU models that include a Fan-hood assembly support up to three external
alarms. The fourth external alarm provides fan-hood monitoring.
AUX2
N/A (Future Option).
NOTE: idRU LEDs currently not applicable.
External alarms
routing
Service
antenna
GND
Power
Additional band
Cascading
CPRI for
cascading
IP backhaul
connection
te
e
e
e
te
e
e
e
e
e
e
CPRI from
MSDH
AUX2 N/A