User's Manual
Table Of Contents
- Altiostar Networks iRM4451nn00-2 intelligent Remote Radio Head
- Preface
- Contents
- List of tables
- List of figures
- 1 Introduction
- 2 Safety requirements
- 3 Physical description
- 4 Installation prerequisites
- 5 Installation overview
- 6 Installing the iRM4451nn00-2
- 6.1 Assembling cables
- 6.2 Routing pre-assembled power/GigE optical fronthaul/grounding cables
- 6.3 Installing the mounting bracket
- 6.4 Hoisting the iRM4451nn00-2 on elevated structures
- 6.5 Installing the iRM4451nn00-2 on the mounting bracket
- 6.6 Connecting the grounding cable
- 6.7 Connecting the RET cables
- 6.8 Connecting the GigE optical fronthaul cables
- 6.9 Connecting the RF cables
- 6.10 Connecting the alarms cable
- 6.11 Connecting the –48 V dc power cable
- 6.12 Weatherproofing cable connections
- 6.13 Checking power
- 7 Terms, Acronyms and Abbreviations
Installing the iRM4451nn00-2
iRM4451nn00-2 iRRH Product Description and Installation Guide 6-11
6.10 Connecting the alarms cable
This section provides the procedure for connecting the alarms cable, terminated at
the macro iRRH with a Lumberg 0322 12 circular 12-pin DIN connector, to the
iRM4451nn00-2 iRRH.
To connect the alarms cable:
1. Remove the captive dust cover from the ALARMS connector located on the side of
the macro iRRH.
2. Screw the DIN connector coupling nut onto the ALARMS connector.
3. Secure the connection by torquing the coupling nut hand tight.
6.11 Connecting the –48 V dc power cable
This section provides the procedure for connecting the –48 V dc power cable to the
iRM4451nn00-2 power input connector. Detailed instructions on how to assemble the
power cable to the Rosenberger power connector are provided with the each plug.
Refer to them to install the power connector to the power cable.
NOTE
Power to the –48 V dc power supply cable should be switched off at the breaker
before connecting to the iRM4451
nn00-2 power input connector.
To connect the dc power cable:
1. Plug the Rosenberger quick-disconnect power plug into the power input receptacle
labeled POWER located on the bottom of the unit by aligning the two bayonet
lugs into the slots of the coupling nut.
2. Secure the connection by twisting the coupling nut firmly clockwise by hand until
you feel and hear it ‘click’ into the locked position.
NOTE
It is recommended that the –48 V dc power connection be waterproofed using a
self-fusing tape made for that purpose. The application of the tape will vary by
Installer, so local practice will determine how the tape is applied.
6.12 Weatherproofing cable connections
This section provides the procedure for additional weatherproofing of all cable
connections (power, RET, RF, fronthaul, and alarms) to ensure a weather-tight cable
connection is maintained.
To weatherproof cable connections:
1. Weatherproof all cable connections by completely wrapping the cable, the
connector on the cable, and the connector threads on the equipment itself with