Comba IRCU Internal Remote Control Unit (IRCU) User Manual V1.5 Comba 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. Information contained in this document is subject to change without prior notice 1.0 Safety Precautions -s----++sssssssssecssseesessstececesneesesnsssescnnnsecessnnesecsnneesesanteeesean 1 2.0 Overview:-
2.1 Main Purpose and Scope of Application 2.2 Model Description:---
2.3 Normal Working Conditions and Environment:---
24 Dimensions and Weight 3.0 _ IRCU Specification---+++++++++ssssssssssssssssessssssessssssssssssnssssssssessnsssenssneesinssinsens 2 4.0 RET System and Working Principle -
4.1 RET System 4.2 Working Principle-~
4.3 Two BTS Working Principle ----
5.0 _IRCU Installation and Connection ---++++++++sssseseseseseneseeseesseacsesesesenecacasseeneees 9 5.1 Installation Requirements 5.1.1 Control Cable Requirements:
5.1.2 Power Supply----
5.1.3 Installation Tools 5.2 IRCU Installation 5.2.1 IRCU-302, IRCU-502, IRCU-602 installation steps and method:
5.2.2 IRCU-C814 installation steps and methods:
523 Connection between IRCU, PCU and Antenna Systems 5.3 Mapping of IRCU RET port to Phase Shifter & Scanning Mode 5.3.1 | Mapping of IRCU-302 to Phase Shifter --
5.3.2 | Mapping of IRCU-502 to Tilt Ruler
$33 Mapping of IRCU-602 to Tilt Ruler:
5.3.4 Mapping of IRCU-C212 to Tilt Ruler-
5.3.5 Mapping of IRCU-C412 to Tilt Ruler-
5.3.6 | Mapping of IRCU-C414 to Tilt Ruler-
5.3.7. Mapping of IRCU-C814 to Tilt Ruler-
5.3.8 Scanning Mode of IRCU 5.4 IRCU Control Cable, Lightning Protection and Grounding cables 5.4.1 Control cable, Lightning Protection and Grounding requirements ----
5.4.2 Grounding Kit Installation Procedure ----
6 Transportation and Storage s+++++s+s+ssssssssssseesesseessensessesneeseessenesnssnseseentensennees 24 6.1 Transportation 6.2 Storage Comba e Install safety sign onsite to let public know that area is dangerous for public; operating 1.0 Safety Precautions personnel must use Protection Equipment during work. e Pay attention for any high Voltage cable around during installation, be careful and avoid electrical shock. e Make sure Antenna installed in protection angle of the tower Lightning rod. e Grounding Cable must be installed, make sure the grounding resistance lesser than 5Q. 2.0 Overview 2.1 Main Purpose and Scope of Application IRCU is a controller for electrical tilt enabled antenna to perform remote electrical tilting. It meets AlSG2.0 standards, suitable to be use with all Ericsson, Nokia, Huawei, and ZTE AISG 2.0 Base Station. 2.2 Model Description L Quantity of AISG Ports Edition Series Control Internal Remote Control Unit 2.3 Normal Working Conditions and Environment 1. Ambient temperature: -40 C to +60 C 2. Power supply: DC +10 V to +30 V 2.4 Dimensions and Weight 1. IRCU outline shown in Figure 1. IRCU-602 IRCU-502 69.7 100 IRCU-302 Page 1 of 25 3.0 Co mba g fat fe |
q gh 34 5 ah E Ss PS 106 165 |
IRCU-C212 IRCU-C412 a oO OO T T ZEEG ft IE) . 171 Tt C
IRCU-C414 IRCU-C814 Figure 1 IRCU Outline 2. Size and weight are shown in Table 1. fod Dimensions Weight/kg Package Size
(Lx W x H)/mm (Approximate) (Lx W x H)/mm IRCU-302 100x69.7x26 0.16 142x108x60 IRCU-502 116x72.4x26 0.20 142x108x60 IRCU-602 116x72.4x26 0.20 142x108x60 IRCU-C212 171x129x34 0.55 205x210x79 IRCU-C412 171x165x34 0.75 210x205x80 IRCU-C414 171x165x34 0.80 210x205x80 IRCU-C814 184x177x58 1.30 230x210x110 IRCU Specification Table 1 IRCU Dimensions and Weight For IRCU specification please refer to IRCU Datasheet IRCU. IRCU tilting angle with adjustment accuracy of $0.1 . Page 2 of 25 Comba 4.0 RET System and Working Principle 4.1 RET System Remote Electrical Tilt (RET) system consists of two major part, electrical tilt enabled antenna and controller. 4.2 Working Principle IRCU obtains control information or number of motor rotation pulse throughout calibration. By adjusting the motor rotation of IRCU, it is able to gain movement control of the phase shifter in an antenna, and thus able to control antenna electrical tilt angle. While maintaining real time communication between IRCU and PCU (Portable Control Unit), PCU send control command to IRCU; IRCU will return the control result to PCU, and PCU act as Human-Machines interface. 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 uniquelD. 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. If IRCU-C814 doesnt be configured yet, 2BTS both can get 8 bands information through scanning, shown in table 2 tu ries Pavesi ea CBOY1CB17C123456701 o1 RET (0x01) 2.0 CBOY2CB17C123456702 02 RET (0x01) 2.0 CBOY3CB17C123456703 03 RET (0x01) 2.0 CBOY4CB17C123456704 04 RET (0x01) 2.0 CBOYSCB17C123456705 05 RET (0x01) 2.0 CBOY6CB17C123456706 06 RET (0x01) 20 CBOY7CB17C123456707 07 RET (0x01) 2.0 CBOY8CB17C123456708 08 RET (0x01) 2.0 Table 2 IRCU Device Information If a band is configured by a AISG port, then the another AISG ports cant see and control the band. Only the first AISG port agree and hand over the control right, then the other AISG port can see it through scan. For instance, A BTS connects to IRCU-C814 AISG 1, B BTS connects to AISG 2, A BTS has already configured band No 2, 3 and 5, B BTS only can see serial band No 1, 4, 5, 6, 7, and 8 information through scanning, as shown in table 3. Page 3 of 25 Comba erties eres Peveeae Ka CBOY1CB17C123456701 on RET (0x01) 2.0 CBOY4CB17C123456704 04 RET (0x01) 2.0 CBOY6CB17C123456706 06 RET (0x01) 20 CBOY7CB17C123456707 07 RET (0x01) 2.0 CBOY8CB17C123456708 08 RET (0x01) 2.0 Table 3 IRCU Device Information shown in B BTS If B BTS configurate band No 1, 4 and 6, A BTS rescan IRCU only can see band No 2, 3,5, 7 and 8 after rescanning shown table 4. Cur is IX Ciccry per 1 rc}
CBOY2CB17C123456702 02 RET (0x01) 2.0 CBOY3CB17C123456703 03 RET (0x01) 2.0 CBOYSCB17C123456705 05 RET (0x01) 2.0 CBOY7CB17C123456707 07 RET (0x01) 2.0 CBOY8CB17C123456708 08 RET (0x01) 2.0 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. ODI Antenna eens eres Pave Vacant eas aes a CBOY7CB17C123456707 RET (0x01) CBOY8CB17C123456708 RET (0x01) Figure 2 IRCU configuration Page 4 of 25
| Comba 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. 2 v7 Upload Set BTS1/BTS
> ut Sean colrat set Tilt | Restorati | Restorati | Config ee Informati | Device | self-test on on file Data Sean x 4 v v v x x v y v
@llbratio 4 x x v v x x m a x Set Tilt 4 x x v 4 x x x 2 Restoratio| 4 4 v v x x v v y a u Restoratio| 4 4 v af x x v v v n Upload em x x x x x x x x x Benware x x x m2 x x x x x x Update Informa 4 J v v v x x v v v on Set Device ae v v v v 4 x x v v v Self-test v x x v v x x y v X: 1) IRCU cant operate the command from 2 AISG ports, as it will interface each other, and doesnt comply with AISG standard 2) One AISG port can operate the command successfully, but the command sent by the other AISG port is failed to achieve. v: 2 pairs of AISG ports can operate the command successfully, and comply AISG standard Table 5 2 BTS operation simultaneously notice a) Scan IRCU-Cx14 do not support 2 BTS scan IRCU simultaneously. If one AISG port is scanning, the another AISG port is available to calibration, set tilt, L2/7 restoration, get IRCU information, set device data, self-test but upload configuration file and update firmware. When A BTS is scanning, if B BTS send order to IRCU, the impact to A BTS is shown in table 6 Page 5 of 25 b) Comba B BTS operation If IRCU Support Influence on A BTS Calibration L2 /L7 Restoration Upload Configuration File Update Firmware Achieve Information Set Device Data Table 6 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, update firmware and self-test. When A BTS is calibrating, if B BTS send order to IRCU, the conflict between BTS A&B is shown in table 7. B BTS operation If IRCU Support Influence on A BTS Calibration L2 /L7 Restoration Upload Configuration File Update Firmware Achieve Information Set Device Data Self-test Set Tilt IRCU-Cx14 do not support 2 BTS to do set tilt on a band simultaneously. If one AISG port is setting tilt, the another AISG port is available to scan, L2/7 restoration, get IRCU information, set device data but set tilt, upload configuration file, update firmware and self-test. When A BTS is setting tilt, if B BTS send order to IRCU, the conflict between BTS A&B is shown in table 8. Page 6 of 25 qd) f) 8) Comba B BTS operation If IRCU Support Influence on A BTS Calibration L2 /L7 Restoration Upload Configuration File Update Firmware Achieve Information Set Device Data L2 /L7 Restoration IRCU-Cx14 support 2 BTS to restore L2 or L7 simultaneously. If one AISG port is restoring L2 or L7, do not suggest the another AISG port to do any operation as when the restoration finish, IRCU will be reset. 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. 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. Achieve Information IRCU-Cx14 support 2 BTS achieve IRCU information simultaneously. If one AISG port is achieving IRCU information, the another AISG port is also available to scan calibration, set tilt, L2/7 restoration, set device data and self-test but upload configuration file and update firmware. When A BTS is achieving IRCU information, if B BTS send order to IRCU, the impact to A BTS is shown in table 9. Page 7 of 25 h) Comba B BTS operation If IRCU Support Influence on A BTS Calibration L2 /L7 Restoration Upload Configuration File Update Firmware Achieve Information Set Device Data Self-test Set Device Data IRCU support to set Installation date, Installer's ID, Base station ID, Sector ID, Antenna bearing (degrees), Installed mechanical tilt (degrees) and Antenna serial number. Antenna model number, Antenna operating band(s), Beamwidth, Gain(dB), Maximum tilt
(degrees), Minimum tilt (degrees) can not be changed, IRCU will reply ReadyOnly. IRCU-Cx14 support 2 BTS set device data simultaneously. If one AISG port is setting device data, the another AISG port is also available to scan calibration, set tilt, L2/7 restoration, get IRCU information and self-test_but upload configuration file and update firmware. When A BTS is setting device data, if B BTS send order to IRCU, the impact to A BTS is shown in table 10 B BTS operation If IRCU Support Influence on A BTS Calibration L2 /L7 Restoration Upload Configuration File Update Firmware Achieve Information Set Device Data Table 10 Self-test IRCU-Cx14 support 2 BTS to do self-test simultaneously. If one AISG port is doing self-test, the another AISG port is also available to scan, L2/7 restoration, get IRCU information_but calibration, set tilt, upload configuration file and update firmware. When A BTS is doing self-test, if B BTS send order to IRCU, the impact to A BTS is shown in table 11 Page 8 of 25 Comba j) 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. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur ina particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help. 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 x 0.75mm + 2 x 0.32mm. Protection class:
IP65. Page 9 of 25 Comba 5.1.2 Power Supply IRCU Input Power: DC +10 V ~ +30 V 5.1.3 Installation Tools 32mm open-end Torque wrench x 1. 5.2 IRCU Installation 52:3, IRCU-302, IRCU-502, IRCU-602 installation steps and methods a) As shown in Figure 3-1, "AISG OUT" logo on Antenna cover need to align with IRCU IN and OUT, then insert IRCU into antenna mounting slot.
. Oc 64 OUT Logo nH Alignment IRCU Figure 3-1 IRCU Installation b) As shown in Figure 3-2, tighten screws on IRCU using a slotted type screwdriver. PETAR D-28os AISG OUT Screw 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. Page 10 of 25 AISG OUT Control Cable 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. a , SW Antenna Antenna Antenna AISGOLT AISG IN AISG OUT AISG IN AISG OST AISG N Control Cable Daisy Chain Daisy Chain Connection Connection aaa) CCU ef 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. e) Water proof: Firstly wrap three layers of waterproof tape, then wrap three layers of insulating tape, fastened with cable ties at both ends. Page 11 of 25 Comba 5.2.2 IRCU-C814 installation steps and methods a) As shown in Figure 4-1, "AISG OUT" logo on Antenna cover need to align with IRCU IN and OUT, then insert IRCU into antenna mounting slot. Figure 4-1 IRCU Installation b) As shown in Figure 4-2, tighten screws on IRCU using a slotted type screwdriver. 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. Page 12 of 25 AISG OUT Control Cable PCU Figure 4-3 AISG Control Cable to PCU Page 13 of 25 Comba 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. 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. 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. e) Water proof: Firstly wrap three layers of waterproof tape, then wrap three layers of insulating tape, fastened with cable ties at both ends. 5.2.3 Connection between IRCU, PCU and Antenna Systems Connection between IRCU, PCU and antenna system connections are shown in Figure 5. There are three connections, namely:
Figure 5(a): IRCU directly connected with the PCU via the control cable;
Figure 5(b): IRCU connected with antenna system terminal SBT (Smart Bias-T), PCU and the base station apparatus connected to the end of SBT, the control signal transmitted thru the RF feeder. Figure 5(c): IRCU connected with AISG interface enable TMA, PCU and the base station apparatus connected to the end of SBT, the control signal transmitted thru the RF feeder. Page 14 of 25 Comba
@) (b) () eo oe Antenna Antenna Antenna
[isst in ASGTMA |
Lf 4 SBT set
~~ BIS 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 12. It may be noted that Comba R&D, with the current technical skills, is able to rapidly develop a series of new IRCU module containing higher number of driving control unit, so as to meet the requirement of in-built RCU electrical tilt antenna with higher number of frequency bands supported. Page 15 of 25 Comba 7 i No. of Motor arameter Driving Control Suitable RET Antenna Installation Manner Product . Unit 1 to 2 freq band build-in IRCU-C212 2 Plug and play RCU RET Antenna 1 to 3 freq band build-i IRCU-302 3 9 3 treq bana bullenin Plug and play RCU RET Antenna 1 to 4 freq band build-in IRCU-C412 4 Pl id pl IRCU-CA RCU RET Antenna Neen pay 1 to 4 freq band build-in IRCU-C414 4 Plug and pla RCU RET Antenna e pay iRcoR . 4 to 5 freq band build-in PI d pl
-! jug and pla RCU RET Antenna e pe 6 freq band build-in RCU IRCU-602 6 a: airmail Plug and play RET Antenna 5 to 8 freq band build-i IRCU-C814 8 9 8 freq bang bulierin Plug and play RCU RET Antenna Table 12_IRCU in relation to Antenna Suitability 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. Soft PCB connecting to Driver Unit/Motor Figure 6 IRCU-302 Plug-and-play Installation Page 16 of 25 Internal spline to connect phase shifter Figure 6 IRCU-C814 Plug-and-play Installation 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 Figure 7 Mapping of IRCU-302 to Phase Shifter 5.3.2. Mapping of IRCU-502 to Tilt Ruler Each Driver Unit/Motor comes with own serial number whereby for Figure 8 below, 5 set of serial numbers will be displayed on PCU when connected. Page 17 of 25 Comba ODI Antenna Figure 8 Mapping of IRCU-502 to Phase Shifter 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 Figure 9 Mapping of IRCU-602 to Phase Shifter 5.3.4 Mapping of IRCU-C212 to Tilt Ruler Each Driver Unit/Motor comes with own serial number whereby for Figure 10 below, 2 set of serial numbers will be displayed on PCU when connected. Page 18 of 25 Comba Figure 10 Mapping of IRCU-C212 to Phase Shifter 5.3.5 Mapping of IRCU-C412 to Tilt Ruler Each Driver Unit/Motor comes with own serial number whereby for Figure 11 below, 4 set of serial numbers will be displayed on PCU when connected. Figure 11 Mapping of IRCU-C412 to Phase Shifter 5.3.6 Mapping of IRCU-C414 to Tilt Ruler Each Driver Unit/Motor comes with own serial number whereby for Figure 12 below, 4 set of serial numbers will be displayed on PCU when connected. Page 19 of 25 Comba OD! Antenna Figure 12 Mapping of IRCU-C414 to Phase Shifter 5.3.7. Mapping of IRCU-C814 to Tilt Ruler Each Driver Unit/Motor comes with own serial number whereby for Figure 13 below, 8 set of serial numbers will be displayed on PCU when connected. OD! Antenna Figure 13 Mapping of IRCU-C814 to Phase Shifter 5.3.8 | Scanning Mode of IRCU For compatibility with different BTS/NodeB, Comba R&D designs 2 different modes of IRCU scanning: Single-mode and Multi-mode*. IRCU-302, IRCU-502, IRCU-602, IRCU-C212 and Page 20 of 25 Comba IRCU-C412both support Single-mode and Multi-mode, IRCU-C414 and IRCU-C814 support Single-mode. Single-mode is the default setting for all IRCU but both modes actually have no difference in term of function controlling. Taking IRCU-302 for example, being used in 3 frequency band build-in RCU RET antenna and in 3 sectors deployment as shown in Figure 14:
be Foe 6 5S 06 oo Figure 14 Three Tri-band ODI Antenna
*If operators wish to use multi-mode, kindly contact supplier to provide .bin file configuration. Single-mode scan: For this mode, all the devices will be shown independently. No sub-
devices. IRCU-302, A1 IRCU-302, A2 IRCU-302, A3 IRCU-302, B1 IRCU-302, B2 IRCU-302, B3 IRCU-302, C1 IRCU-302, C2 IRCU-302, C3
{0:0 NE Ge Gt & fr Figure 15 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. Page 21 of 25 Comba 1. -IRCU-302,A Al A2 A3 2. -IRCU-302, B 1. +IRCU-302, A 2. +IRCU-302,8 => 81 3. + IRCU-302, C B2 B3 3. -IRCU-302,C ci c2 c3 Figure 16 Multi-mode Scanning with Main Devices & Sub-devices 5.4 IRCU Control Cable, Lightning Protection and Grounding cables 5.4.1 Control cable, Lightning Protection and Grounding requirements IRCU control cable can connect through SBT or TMA (as shown in Figure 5 (b), (c)), normally control cable will be short and not more than 2m, lighting protection and grounding will be implemented along the RF feeder and hence it is not necessary for control cable to carry out lightning Protection and grounding again. However, if IRCU and control cable are connected as Figure 5 (a), whereby control cable connect to RCU directly, then it is necessary for the cable control to proceed with Lightning Protection and Ground requirement. Details as follows:
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. Make sure grounding cable is installed property, feeder window of the shelter room should be close to the ground and properly connect to the grounding bar that leads to the ground. (See Figure 17) Page 22 of 25 Comba Control Cable Grounding 1 Control Cable Grounding 2 es Feeder window Q Grounding Bar Control Cable Grounding 3 Figure 17 c) Control cables metal sheath attach to grounding kit as shown in Figure 18. Control Cable __ Grounding Connect to grounding bar |
Figure 18 5.4.2 Grounding Kit Installation Procedure a) Prepare ground kit, as shown in Figure 19 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 19 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 20 Page 23 of 25 Comba d) Tighten the screws of the grounding kit, as show in Figure 21. e) Connect and tighten grounding cable on the grounding bar which locate at bottom of the tower.
**Note: The control cables should be in upright position while clamping with grounding kit. Figure 19 6 Transportation and Storage 6.1 Transportation Equipment can be carriage by car, train, ship, airplane or other transportation vehicles. Do prevent rain, avoid excessive vibration and impact during the transportation. Handle with care while loading and unloading, strictly prohibit drop from height and other rough handling. 6.2 Storage Packaged equipment should be placed in dry and ventilated area, ambient air without acidic, alkaline and other corrosive gas. Box stacking shall comply with specification on the box. Storage period should not exceeded two years, good stored for more than two years will need to pass re-
inspection test before use Page 24 of 25 Comba
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