IRCU Internal Remote Control Unit (IRCU) User Manual V1.
Foreword This user manual describes the basic use of electrical tilt antenna connected to the Internal Remote Control unit (IRCU). Due to different equipment and software upgrade, some description in this manual may differ from the actual use.
Table of Contents 1.0 Safety Precautions ..................................................................................................................... 4 2.0 Overview .................................................................................................................................... 4 2.1 Main Purpose and Scope of Application .................................................................................... 4 2.2 Model Description..............................................
1.0 2.0 Safety Precautions Install safety sign onsite to let public know that area is dangerous for public; operating personnel must use Protection Equipment during work. Pay attention for any high Voltage cable around during installation, be careful and avoid electrical shock. Make sure Antenna installed in protection angle of the tower Lightning rod. Grounding Cable must be installed, make sure the grounding resistance lesser than 5Ω. Overview 2.
125 130 146 128 IRCU-C414 IRCU-C814 Figure 1 IRCU Outline 2. Size and weight are shown in Table 1. Model IRCU-302 IRCU-502 IRCU-602 IRCU-C414 IRCU-C814 Dimensions (L × W × H)/mm 100x53x26 116x53x26 116x53x26 128x130x31 125x146x55 Weight/kg (Approximate) 0.2 0.3 0.3 0.6 1.3 Package Size (L × W × H)/mm 142x108x60 142x108x60 142x108x60 TBD TBD Table 1 IRCU Dimensions and Weight 3.0 IRCU Specification For IRCU specification please refer to IRCU Datasheet IRCU.
4.3 Two BTS Working Principle IRCU-Cx14(x=4 or 8) serial has two pairs of AISG ports, is able to support 2 BTS control the common antenna. IRCU-Cx14 it has two buses but share one configuration file and uniqueID. IRCU-C414 is integrated 4 motors inside, IRCU-C814 is 8 motors. The two pairs of AISG ports has no difference on function but priority, any band can be assigned by AISG port no matter AISG1 or2, if the band is not configured by the another AISG port.
Table 4 IRCU Device Information shown in A BTS After A&B BTS finish the configuration, the final configuration like Figure 2-1, band No. 7 &8 are available for configured.
NOTICE: 2 BTS concurrent operation IRCU-Cx14 does not support 2 BTS scan, calibration, set tilt, update configuration file, update firmware simultaneously. Table 5 is the conflict outline for 2 BTS operation simultaneously.
b) Calibration IRCU-Cx14 do not support 2 BTS to do calibration simultaneously. If one AISG port is calibrating, the another AISG port is available to scan, L2/7 restoration, get IRCU information, set device data but set tilt, upload configuration file and update firmware. When A BTS is calibrating, if B BTS send order to IRCU, the conflict between BTS A&B is shown in table 7.
e) Upload Configuration File IRCU-Cx14 do not support 2 BTS to upload configuration file simultaneously. If one AISG port is uploading configuration file, do not suggest the another AISG port to do any operation as IRCU will be broken link after uploading finish. f) Update Firmware IRCU-Cx14 do not support 2 BTS to update firmware simultaneously. If one AISG port is updating firmware, do not suggest the another AISG port to do any operation as IRCU will be broken link after updating firmware finish.
i) Caution: The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
5.0 IRCU Installation and Connection 5.1 Installation Requirements 5.1.1 Control Cable Requirements Control Cable connector: Meet the requirements of IEC60130-9 8-pin connector. End of cable are composition of Male and Female Connectors, connector and cable core meet the AISG interface standard requirements. Cable: Composition of 5 core with metal and plastic protective layer shielding cable, core diameter requirements: 3 × 0.75mm + 2 × 0.32mm. Protection class: IP65. 5.1.
b) As shown in Figure 3-2, tighten screws on IRCU using a slotted type screwdriver. Figure 3-2 IRCU Installation c) Figure 3-3, connect the control cable to the AISG Connector locate at the lower part of the IRCU and tighten the connector. Figure 3-3 AISG Control Cable to PCU d) If there is more than one IRCU need to be connect, daisy-chained cascade method can be used as show in Figure 3-4.
Figure 3-4 Multiple IRCU Daisy-Chain Cascade Schematic Diagram **Note: The control cables and IRCU connectors at both ends were Male and Female connector. IRCU male connector used to receive Input Signal and connect with female connector of control cables; IRCU female connector used to transmit output signal and cascade in series to another IRCU using male cable connector. Control cables from PCU only can be connect to the male connector of IRCU.
b) As shown in Figure 4-2, tighten screws on IRCU using a slotted type screwdriver. Screw Screw Figure 4-2 IRCU Installation c) Figure 4-3, connect the control cable to the AISG Connector locate at the lower part of the IRCU and tighten the connector.
d) If there is more than one IRCU need to be connect, daisy-chained cascade method can be used as show in Figure 4-4. Antenna AISG OUT AISG IN Antenna AISG IN AISG OUT Antenna AISG IN AISG OUT Cable Daisy Chain Connection Daisy Chain Connection PCU PCU-H002 Figure 4-4 Multiple IRCU Daisy-Chain Cascade Schematic Diagram **Note: The control cables and IRCU connectors at both ends were Male and Female connector.
(a) (b) Antenna Antenna (c) Antenna SBT AISG TMA SBT SBT PCU BTS PCU-H002 Figure 5 IRCU, PCU and Antenna System Connection Diagram 5.3 Mapping of IRCU RET port to Phase Shifter & Scanning Mode Comba existing IRCU products can satisfy 1 to 8 RET phase shifter control. All control and driver chip are integrated into single IRCU module whereby the usage of IRCU can be further categorized. The relative specifications are as shown in Table 11.
Comba IRCU products, as shown in Figure 6, employ the usage of socket, so as to realize the plug-and-play function whereby the IRCU can be easily installed or uninstalled. It greatly enhances the reliability of the product in term of connection and utilization. Also, the maintenance is greatly simplified.
5.3.1 Mapping of IRCU-302 to Phase Shifter Each Driver Unit/Motor comes with own serial number whereby for Figure 7 below, 3 set of serial numbers will be displayed on PCU when connected. ODI Antenna Phase Shifter 1 Phase Shifter 2 Phase Shifter 3 Drive Unit 1 Drive Unit 2 Drive Unit 3 IRCU-302 AISG Port Figure 7 Mapping of IRCU-302 to Phase Shifter 5.3.
5.3.3 Mapping of IRCU-602 to Tilt Ruler Each Driver Unit/Motor comes with own serial number whereby for Figure 9 below, 6 set of serial numbers will be displayed on PCU when connected. ODI Antenna Drive Unit 1 Phase Shifter 6 Phase Shifter 5 Phase Shifter 4 Phase Shifter 3 Phase Shifter 2 Phase Shifter 1 Drive Drive Drive Drive Unit 3 Unit 4 Unit 5 Unit 2 Drive Unit 6 IRCU-602 AISG Port Figure 9 Mapping of IRCU-602 to Phase Shifter 5.3.
5.3.5 Mapping of IRCU-C814 to Tilt Ruler Each Driver Unit/Motor comes with own serial number whereby for Figure 11 below, 8 set of serial numbers will be displayed on PCU when connected. ODI Antenna Phase Shifter 8 Phase Shifter 7 Phase Shifter 6 Phase Shifter 5 Phase Shifter 4 Phase Shifter 3 Phase Shifter 2 Phase Shifter 1 Drive Unit 1-8 IRCU-C814 AISG Port Figure 11 Mapping of IRCU-C814 to Phase Shifter 5.3.
Single-mode scan: For this mode, all the devices will be shown independently. No subdevices. Figure 13 Single-mode Scanning with Main Devices only Multi-mode scan: When BTS/NodeB start scanning with multi-mode, 3 main devices (A, B and C) are detected first, then their sub-devices (A1, A2, A3, B1, B2, B3, C1, C2, C3) can be controlled independently. Figure 14 Multi-mode Scanning with Main Devices & Sub-devices 5.4 IRCU Control Cable, Lightning Protection and Grounding cables 5.4.
a) Control cables that connect to base station antenna should be within the scope of protection of the air terminals. Air terminals shall establish special lightning current deflectors, materials suitable are 4mm x 40 mm galvanized flat steel. b) Control cables metal sheath should be clamp to grounding kit within 1m of antenna, 1m within the cable tray at the bottom of the tower, and 1m before entering base station shelter.
5.4.2 Grounding Kit Installation Procedure a) Prepare ground kit, as shown in Figure 17 1a. b) Clean the plastic sheath of the control cables, cutting plastic sheath with a suitable stripper tool, expose metal braid sheath of control cable, with length about 22mm, as shown in the Figure 17 1b. c) Remove the protection sheet on the ground kit, clamping the grounding kit around the control cable, and align with striped line as shown in Figure 18.
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