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ALS Series Microwave Radio for Point‐to‐Point
application
ALCplus2 IDU
AS ODU
IP/ SDH/ PDH
Installation Guide
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Purpose
This Document is intended as an installation guide for deploying Siae equipment ALS series model
ALCpus2 into customer ‘s network. It is not intended as installation instruction for any civil works
and intended
to
follow
on
from
previous
installation
guides.
Intended Audience
The document is intended for all field staff that will be involved in Siae microwave deployment
Pre Installation
Prior to installation any new link the contractor will be required a completed Scope of Works
documents “SOW” . The SOW document contains all the information for the installation,
commissioning and integration of the new equipments. The SOW contains the following
information
Link parameters
Link frequencies
Proposed License details
Network Element IP addresses
IDU installation location
DC
Power Supply
terminations
ODU installation location
IF cable routing
Installation brief ( How the installation will be done, any arrangement of existing equipment,
Antenna mounting installation)
Integration brief ( How the integration of the network element will be completed, Outage
Requirements of
each
circuit)
System Architecture ALS series – ALCplus2
Siae Microwave link ALS series model ALCplus2 is consist of 2 main equipments which is IDU
(Indoor Unit) and ODU ( Outdoor Unit)
Indoor Unit of ALCplus2 have 2 main types
1.ALCplus2 IDU ‐18xE1 +4xGE + 2xSTM‐1 +Nodal Bus
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7 654 3 2 1
108 91
Figure 1. ALCplus 2 IDU – 18xE1 + 4xGE + 2xSTM‐1 + Nodal Bus
1. TMN‐access (ETH, USB‐B, RS232)
2. ETH payload 10/100/1000 RJ45 FE/GE
3. STM‐1 payload With SFP modules
4. 2xE1 payload
o Traffic
o Sync Input/Output (G703/ 2 MHz clock or HDB3 AIS)
o Traffic + EOC (G704 framing)
5. CAT6 proprietary expansion Bus Traffic
6. nxE1 payload on SCSI connectors (120/75 ohm)
7. Power Supply
8. ETH payload with optical GE SFP modules
9. Alarm IN/OUT
10.IDU‐ODU cables interfaces
2.ALCplus2 IDU ‐34xE1 + 4xGE + 2xSTM‐1
8 1 9 10
3 4 6 7 2 1
Figure 2.ALCplus2 – 34xE1 + 4xGE + 2xSTM‐1
10. TMN‐access (ETH, USB‐B, RS232)
11. ETH payload
10/100/1000
RJ45
FE/GE
12. STM‐1 payload With SFP modules
13. 2xE1 payload
o Traffic
o Sync Input/Output (G703/ 2 MHz clock or HDB3 AIS)
o Traffic + EOC (G704 framing)
14. CAT6 proprietary expansion Bus Traffic
15. nxE1 payload on SCSI connectors (120/75 ohm)
16. Power Supply
17. ETH payload with optical GE SFP modules
18. Alarm IN/OUT
10. IDU‐ODU cables interfaces
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Installation of IDU unit
The AlCplus 2 IDU shall be install inside the standard 19 inch rack which be required for the spacing
on rack equal 1RU.
42 U
DC Distribution
SIAE ALCplus 2 IDU
E1 Main Distribution Frame
19 Inch Rack Front View
Rectifier DC Distribution and On Off Breaker
IDU 1 RU
E1 Wiring Connection Panel
Figure 3.IDU Rack installation
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ALCplus 2 ODU Unit
ASN ODU : supports all modulation schemes (4/8/16/32/64/128/256 QAM) and all capacity from 8
Mbit/s to 400 Mbit/s. ASN ODU doesn’t require any hardware change if configured frequency
reuse (independence
from
XPIC
functionality
) and
compatible
with
all
type
of
IDU.
This
model
provides up to 20 dB ATPC.
Please note that ASN ODU version without the Isolator will not be performed for the functionality
of RF Loop back.
AS ODU: supports all modulation schemes (4/8/16/32/64/128/256 QAM) and all capacity from 8
Mbit/s to 400 Mbit/s. ASN ODU doesn’t require any hardware change if configured frequency
reuse (independence from XPIC functionality ) and compatible with all type of IDU. This model
provides up to 40 dB ATPC.
Figure 4. ASN ODU
Figure 5.AS
ODU
Installation of ODU unit
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The ALCplus 2 ODU can be installing variety of ODU configurations and this is the following
common configurations.
1+0 Configuration with Integrated Antenna
1+0 Configuration with Separated Antenna
1+1 Configuration with Integrated Antenna
1+1 Configuration with Separated Antenna
1+0 Configuration with Integrated Antenna
Siae 1+0 with integrated antenna, the Dish mounts directly onto the pole mount bracket, the ODU
mounts directly
onto
the
back
of
the
Pole
mounting
bracket.
Figure
6.
ODU
1+0
with
Integrated
Antenna
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Vertical Polarization Horizontal Polarization
Figure 7. ODU 1+0 with Integrated antenna and Polarization installation.
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1+0 Configuration with Separated Antenna
Step 1 : Install Antenna sliding strip onto antenna pole mounting.
Figure 8. Ant‐sliding Strip
Step 2: Install support bracket.
Figure 9. Bracket installation
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Step 3: Install the ODU mounting bracket.
Figure 10. ODU Mounting Bracket
Step 4: There are 3 possible installation scenarios for mounting the ODU mounting bracket onto the
support bracket, depending on the orientation of the antenna to be connected to the ODU
mounting bracket
can
be
installed
to
the
left,
right
or
straight
on.
Figure 11.Direction to install the ODU mounting bracket
Step 5: Install Wave Guide onto the Brass wave guide flange.
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Figure 12. Wave Guide install to ODU mounting Flange
Step 6: install ODU onto the Mounting Bracket is straight forward but can be easily installed
incorrectly if the wrong installation method is used, there are three items that need to be aligned
correctly for the installation procedure to work, first the Brass Wave Guide Flange needs to be
installed in the Vertically position , then the reference tooth and the Raised weldment must also
line up, please see picture below.
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Rotate ODU Clockwise Final Position ODU Correctly
Figure 13. ODU mounting into the Bracket as Vertical Polarization Position
Please note that on the correctly installed ODU handle will always face down and toward to left hand side
.Checking if the Polarization be mounted as a Wrong Position then it will be the “Cross Wave Guide” the
receive level at the far end will be ‐30 dB lower than the calculated level.
Figure 14. Shown the ODU mounting Correctly and Incorrectly Position
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1+1 Configuration with Separated Antenna
Siae 1+1 Separated Antenna solution , use 2xODUs connected to the RF Hybrid Branching (RF
Power Slitter) and Mount directly onto the RF Flexible Wave Guide which other side of Flexible
Wave Guide mount onto the back of single polarization Antenna Dish.
Figure 15. RF Hybrid Branching
Please note that the Flange Type of the RF Hybrid Branching will be different depending on
Frequency Range. At the Figure 15. shown RF Hybrid branching for 6GHz.
Wage Guide Installation
When ODU and RF Hybrid Branching need to be installed with separate antenna .Extra care should
be taken
when
installing
the
Flexible
Wave
Guide,
this
is
because
the
RF
integrity
of
the
flexible
wave guide can be easily compromised incorrectly. Below is an Flexible wave guide minimum E
plane and H plane bending. Figure 15.1 Shown the example Flexible Wave Guide Bending Value.
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Figure 15.2 : Details of RF Hybrid Branching Unit for mounting 2xODUs
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Figure 16. Shown 2xODUs mounting onto the RF Hybrid Branching
ODU 1 (Main) mounting to RT1 side and ODU 2 (Standby) mounting to RT2 side for radio
configuration as 1+1 Hot Standby.
Figure 16.1: Shown reverse viewed
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Figure 17. Rear side ODU mounting for configuration as 1+1 or 2(1+0)
Please note that incase to installed ODU as 2x(1+0) ,always ensure that the “A” ODU installed at the
Left hand side and the “B” ODU installed at the Right hand side when view from the rear.
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Figure 18. 1+1 ODU completed install to RF Hybrid Branching and Flexible Wave Guide
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Flexible Wave Guide Support ( Optional)
When the Flexible Wave Guide is installed at the High Position on Tower and facing with the strong
wind ,The Flexible Wave Guide must be properly supported by using a threaded rod wave guide
support system
with
the
correct
sized
wave
guide
rubber
boot.
Figure 19.Shown the Flexible Wave Guide Support system.
1+1 Configuration with Integrated Antenna
Siae 1+1 Integrated Antenna solution , use 2xODUs connected to the RF Hybrid Branching (RF
Power Slitter) , Mount directly onto the back of single polarization Antenna Dish.
Figure 20.Polarization on back of Dish – Single Pol.
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Figure 21.1+1 RF Hybrid Branching Unit for installing to Integrated Antenna
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Step1 : Mount the RF Hybrid Branching Direct to the Back end of Antenna
Figure 22. Install the Hybrid to Antenna
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Step 2: Mount the ODU onto the RF Hybrid Branching
Figure 23.ODU Completely Installation
Please note that the Polarization between the RF Hybrid Branching and Antenna must be the same
Grounding system
1.Groudning IDU
2.Grounding ODU
3.Grounding IF Cable
4.Grounding Surge Suppressor
Grounding IDU
Use the Siae grounding Kit provide with the IDU to make an Earth Grounding cable from the Siae IDU
chassis mount stud to the vertical earth bar (Green Line) which is installed inside the 19 inch rack.
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Figure 24. Grounding IDU
Siae IDU Grounding Point
Inside Rack Grounding
SIAE IDU
Siae Grounding
Kit
, contains
‐1x6mm/M6 Crimp Lug
‐2x 6mm. blade connectors
‐ 2x Heat Shirk pieces
‐1m 6mm.Grounding Cable
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Grounding ODU
Every ODU installed into the Microwave Radio Network will need to be connected to a Lightening
Grounding system .A minimum 25mm Grounding cable to be run to the closest Lightening Bar or Grounding
structure. If there is no available lightening protection grounding bar the ODU can be grounded to the
structure, either using a angle tower adaptor or bolted directly to the structure, all grounding connection
will have electrical bonding plate applied and all paint/grease removed from the contact point.
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Grounding connection off.
Situation then it is permitted to leave this
Top of the Tower/Monoploe, if this is the
Impossible to grounding the IF cable at the
With the variety of tower configurations
Within the Mobile network, it is sometime
Figure 25.
The
ODU
and
Tower
Grounding
Structure
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Figure 26. ODU Grounding Point
Figure 27. SIae ODU Grounding Kit ,Contians
‐ 2m 25mm Grounding Calbe
‐ 2x25mm/M8 Lug
‐ 2x Heat Shrink pieces
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Grounding IF Cable
All coaxial IF cables installed into the Microwave Radio Network will be required to be connected the
grounding . Both PDH or SDH or IP Radio will follow this standard. There are 2 types of the IF cable that will
be usually used for the PDH and SDH which is LDF4‐50 and LMR400 , for the standard grounding kit for this
2 cables is UEK 1 for LMR400 and UEK2 for LDF4‐50.
Figure 28.
Grounding
kit
UEK2
for
LDF4
‐50
UEK1 and
UEK2
Universal
Earth
Kit
cable
sizing
Figure 29. Installed of UEK2 Kit
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Grounding Surge Suppressor (Option)
The Grounding of Surge Suppressor may be required to be installed at the Site that need strongly
Lightening protection. The Lightening surge suppressor will be installed outside the equipment shelter or
room as see below diagram.
Figure 30.Grounding Surge Suppressor installation Diagram
DC Power Connection
DC cable type
Black or White 2 core electrical flex is is to be used between the RIM and DC power supply,
normally the color code for DC is Black & Blue, (Black ) +ve connected to the buss bar ,(Blue) –ve
terminated to MCB ( Main Circuit Breaker), Any color conductors can be used but they need to have the
correct color heat shrink applied to the exposed ends to hide the incorrect color , example black heat shrink
over brown color conductor.
DC cable size
1.5 sqmm minimum for dc cable run’s less than 10m , for cable run over 10 m ,2.5 sqmm cable to be
installed.
Circuit Breakers
Normally most of Mobile Operator require different standard of this MCB , but there is a main
supplier in the market , which is Merlin Gerin “C” Curve MCB ,only to be installed into 19 Inch rack DC
Distribution, second supplier is Moellor “C” Curve MCB only to be installed inside the Eltek DC Distribution ,
Other type
can
be
used
but
not
required
much
by
the
Mobile
Operator.
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1+0 Modular/Compact Link MCB rating 6A or 10A
1+1 Modular link MCB Link rating 2x6A or 10A
1+0 XPIC Modular /Compact link MCB rating 6A or 10A
1+1 XPIC Modular/Compact link MCB rating 2x6A or 10A
When the Protected link is to be installed , the installer must ensure that the A leg DC MCB and B leg DC
MCB are not located right beside each other, put as much as separation as possible between them, this is
used as protection against accidentally leaning or dropping tools on to the DC Distribution panel and both
DC feeds are switches off.
DC Connection
Equipment end of the Flex cable must be soldered into the DC connector pins , making sure not
stray copper strands are present that could in the future short out to the case. MCB/Grounding end, each
end of the exposed flex cable , black and blue need to be crimped into a ferrel of the correct size, these
ends are then inserted into the MCB (Bule) –ve and Black +ve into the buss bar.
RIM DC Power connector
Input Voltage Range 40.8‐57.6 Vdc (Positive Ground) , Each RIM card Is protected internally by 3A
125V very fast blow Fuse, Note this not soldered and field replacement.
Figure 31.DC Connector from the front view
Figure 32. DC Connector and Completed Connector
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Link Commissioning
The Link commissioning engineer must be familiar with Siae SCT/LCT or WebLCT software and how
to set up the Siae ALCplus2 .The Link commissioning are required as the following
1. Pan and Tilt antenna for the Maximum Receive Signal Level
2. Ensure the Receive Level meets the specified level in the Link calculation sheet
3. If specified level is not achieved +/‐ 3dB variation from the value in a link calculation are acceptable
Link Commissioning Pan & Tilt adjustment for integrated antenna solution please also refer to the
manufacture installation instructions.
Link Commissioning RSSI
Below is the a graph of received signal RSSI which is plotted against voltage, this voltage reading is taken
from ODU’s BNC connector. An analogue 0‐3 volt Multi Meter is recommended for taking these
instruments as it is response time quicker than a digital multi meter (DMM) and easier to get the peak
receive level.
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r
Figure 33. Detected Voltage Versus the RF Receive Level
Field Engineer can also monitor the RX level by monitor at the screen of software WeBLCT
Please note that Maximum Receive Level of ALCplus 2 must not strong over than ‐20 dBm to avoid the
situation of
RX
saturate.
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Figure 34 RX Level monitor by WebLCT
SNR must
be at lest
33.6 dB to
operating
modulation
at 256QAM
For operating the Link as Adaptive Modulation (ACM) the Modulation from 4QM to 256QAM of link
will shift
up
or
Shift
down
depending
on
the
Receive
SNR
( Signal
to
Noise
Ratio)
.
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Link Configuration
After commissioning the link and meets the Maximum Receive Level or meets the value that specified in
Link calculation, then engineer must set up the Mian configuration of the link which are ,
1. Frequency Channel
2. Modulation
3. Channel Bandwidth
4. TX Power
5. Capacity
Frequency Channel Setting
Connect to the IDU at LCT (USB port) by using the program WebLCT , then selected the menu Radio Brach
1A , if the configuration is 1+1 Hot Standby when adjust the frequency at the Mian Radio ( 1A) then the
Standby Radio ( 2A) will follow automatically, but if the configuration is 1+1 Frequency Diversity , then the
software WebLCT will be required to set up Frequency Channel of Radio 1 A and Radio 2A and must be
Different Channel otherwise the software will warning and not allow user to apply the configuration.
TX/RX Frequency
range and Ch.
Currently Operating
Move UP and Down
arrow to adjust CH.
Frequency ( 250 KHz
step)
Figure 35. Frequency Channel Setting on WebLCT
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Please note that at the same link the Frequency of Both site (Local &Remote) must be set as the Same
Channel And on this menu ,field Engineer must be set the sub‐menu as
‐ Carrier Only must be “Off”
‐ RT PSU must be “On”
‐ TX Transmitter must be “On”
Modulation Setting
Siae ALCplus 2 can be set the modulation as Fix Modulation (ACM Disable) or Adaptive Modulation (ACM
Enable). Please also remind that the link ( Local& Remote site) must be set as the same.
For Fix
Mode
Modulation
,set
ACM
Engine
as”Disable”
and
Set
TX
Power
Constant
Peak
Mode
as
“Disable”
also. Then select the modulation as your specified.
For Adaptive Modulation , set ACM Engine as “Enable” and TX power Constant Peak mode can be set as
“Disable” then the TX Power Mode will work as “Average” which all modulation scheme from 4QAM to
256QAM will be have the same TX Power, but if set TX Power Constant Peak mode as “Enable” then the TX
Power Mode will work as “Peak “ then at each modulation scheme will work as different TX Power ,see
below
ACM Engine
set as
Disable or
Enable
Figure 36.Modulation
Mode
Setting
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Figure 37.TX Power Constant Peak Mode Setting and TX Power Mode
TX Power Constant
Peak Mode Disable
and TX Power Mode
is “Average” and
Click at View
Current Config. To
View TX Power
Mode at each
Modulation Level
TX Power Mode “Avera e”
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TX Power
Constant Peak
Mode set
as
“Enable”
Figure 38.TX Power Constant Peak Mode setting as “Enable”
Figure 39. TX Power Mode Peak
Modulation Level (Upper & Lower) setting
After the ACM Engine be set as “Enable” user be also set the Upper Modulation ( Highest is 256QAM) and
Lower Modulation ( Lowest 4QAM) , Example if the highest modulation need only 128QAM and Lowest
need only 32QAM , then the ACM engine will running Up‐shift and Down –shift only between
128QAM,64QAm and 32QAM.
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Figure 40.
Channel Bandwidth Setting
Figure 41.
For setting the Bandwidth and Modulation must be set as the Bandwidth with the Lower Modulation
,Example if the required Bandwidth is 56 MHz and ACM range is 4QAM to 256QAM then selected the
relative of Bandwidth and Modulation as 56 MHz‐4QAM.as figure below.
Setting
Upper and
Lower mod.
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Figure 42.
TX Power Setting
There are 2 mode to set the TX power, which is Manual and Automatic (ATPC)
Figure 43.
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IF user selected the TX power control mode as Automatic (ATPC) , user also have to set the Threshold of
Local PRx High and Low range at least 3 dB different. User also can setting the Range of Minimum TX
power to relative with the Power Mode “Peak” to make the ACM adjust the TX power suitable at each
modulation level. This Example set the Max TX Power is 23 dBmand Min TX Power is 22 dBm
Figure 44.
Adjust the Min and
Max of the TX power
when setting the TX
power control as ATPC
After completely setting the TX Power Control ,then click at View Current ATPC Power ,To monitor the
result of setting.
Figure 45. View Current ATPC Power.
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Capacity Setting
1) Setting E1 traffic , Permanent E1 and Extra E1 ,result of setting as figure below.
Figure 46.
Permanent
E1 setting
Max is 60E1
Extra E1
setting at
each
modulation
level
Maximum E1 capacity that can be set at each
modulation
level
(
Permanent
+Extra)
Click at View Current Config. To see the result of setting
Figure 47.
Show
the
Table
of
Ethernet
Capacity
and
TDM
Traffic
at
Each
modulation
Level
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2) Ethernet Capacity will reverse to the Capacity of E1 traffic automatically , if reduce the E1 then its
will be increase the Ethernet Capacity as shown in figure 47.