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
Introduction
iRM4451nn00-2 iRRH Product Description and Installation Guide 1-3
The Signal Processing Module (SPM) provides single carrier, single band, single sector
LTE eNodeB operation; it is the Gigabit interface to the Altiostar base station unit
(vBBU). It also provides for 20 MHz (max) instantaneous carrier bandwidth (IBW)
support for 3GPP LTE Release 11 advanced features, L1/L2 signal conditioning, signal
protection and signal processing of the fronthaul signal inputs, as well as eNodeB
timing recovery and synchronization from either the external GPS antenna or 1588V2
extraction of timing from the Layer 2 stratum. It supports test and reference signal
I/O for radio conformance testing (RCT), and Data and Control interface to the radio
card.
An external alarms input is located on the side of the iRM4451 unit. There are four
sets of 2-wire dry contacts that can be software-configured to be normally open or
normally closed.
Test and Debug ports (both factory use only) are provided via a mini USB port and an
HDMI port located behind an access panel on the front of the unit.