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
Physical description
3-8 iRM4451nn00-2 iRRH Product Description and Installation Guide
3.2.4 RET connector
The RET (Remote Electrical Tilt) bulkhead connector provides the capability of
electrical antenna control to all antennas connected to the iRM4451nn00-2. Pin
assignments for the RET standard 8-pin DIN connector is shown in
Figure 3-9.
The connector is keyed to prevent mis-mating. The connector is fastened by
turning the coupling nut clockwise until hand tight..
Figure 3-9 RET standard 8-pin DIN connector
The RET cable and connectors is a standardized AISG RET Control Cable available
from many vendors. Installer supplies and installs RET cables in lengths according
to site requirements.
The RET cable can be daisy-chained to other antennas served by the
iRM4451nn00-2 iRRH if the option is provided by the RET motor manufacturer.
Antenna RET control is facilitated within the EMS user interface.
The Installer is responsible for providing and pre-assembly of the standardized
RET cable and connector in a length according to site requirements.
3.2.5 Fronthaul connectors
Two Gigabit Ethernet (GigE) optical SFP fronthaul ports provide connection for up
to two duplex multi-/single-mode optical GigE cables. The GigE entry ports,
labeled FH1 and FH2, are located on the bottom of the iRM4451nn00-2 iRRH (see
Figure 3-4). Connector FH1 is intended for fronthaul support. FH2 is used to daisy-
chain sidehaul support to up to one other iRM4451nn00-2.
The macro iRRH is shipped with Rosenberger Fiber Enclosure (RFE) flange (PN
98Z405-K00)—a bulkhead connector with captive dust cover—installed. The mate
to the flange is the RFE ‘plug’ (Rosenberger PN 98Z105-S00) which contain the
two duplex optical GigE fiber cables and protects the fiber connections. One (1)
RFE plug is provided with the macro iRRH. They are UL94-V0 and IP67 compliant
at–40° to 158° F (–40° to 70° C).
1 NC
2 NC
3 RS5
4 NC
5 RS5 A
6 +24 V DC
7 Dc return
8 NC