optix rtn 600 introduction
DESCRIPTION
RTN600TRANSCRIPT
www.huawei.com
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
OptiX RTN 600 Introduction
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 2Page 2
Contents
1. Equipment Overview
2. Equipment Structure
3. Equipment Protection
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 3Page 3
Contents
1. Equipment Overview
1.1 Equipment Components
IDU
ODU
Antenna
Intermediate Frequency (IF) Cable
Hybrid coupler
1.2 Equipment Characteristics
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 4Page 4
Equipment Components
Hybrid coupler
IF cable
IDU
ODU
Antenna
Pole
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 5Page 5
IDU
Indoor unit (IDU) realizes the
mutual conversion between
the service signal and IF
analog signal. Two types of
IDU are available:
IDU 610 is 1U high and
supports one microwave
direction.
IDU 620 is 2U high and
supports maximum four
microwave directions.
IDU 610
IDU 620
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 6Page 6
IF transit jumper IF cable
IF Cable
The IF cable provides -48V power for ODU and transmits the IF signal and ODU management signal between IDU and ODU.
Three types of IF cable in OptiX RTN 600: IF jumper: connection between IDU and other IF cable.
1/2 inch and RG-8U (1/4 inch) cable: connection between ODU and IF jumper.
RG-8U (1/4 inch) cable is used for the distance less than 180 meter.
1/2 inch cable is used for the distance between 180m and 300m.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 7Page 7
ODU
Outdoor unit (ODU) realizes the
mutual conversion between IF
analog signal and RF signal.
ODU is irrelevant to the
microwave transmission
capacity. An ODU of the OptiX
RTN 600 can support the
transmission capacity from 4
E1 to one STM-1.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 8Page 8
Hybrid Coupler
When two ODUs share one antenna, the ODUs must be connected to an RF signal coupler/ splitter (hybrid coupler). Then, the hybrid coupler is connected to the antenna.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 9Page 9
Antenna
The antenna performs the
directional transmission and
reception of RF signals. The
main parameters are
frequency band, diameter
and antenna gain.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 10Page 10
Equipment Characteristics
PDH/SDH integrated microwave transmission system.
The modulation mode and link capacity are set through
software.
Microwave link supports the SNCP.
Built-in ADM provides flexible service add/drop function.
Providing the clock tracing function.
Supporting mobile FLASH card.
The boards of IDU 610 and IDU 620 are compatible each
other.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 11Page 11
Contents
1. Equipment Overview
2. Equipment Structure
3. Equipment Protection
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 12Page 12
Contents
Equipment Structure
2.1 System Diagram
2.2 Software Structure
2.3 IDU Structure and Boards
2.4 ODU Interfaces and
Parameters
2.5 Hybrid coupler Parameters
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 13Page 13
System Diagram
OptiX RTN 600 is divided based on functional units. It consists of
service interface unit, cross-connection unit, IF unit, control unit,
clock unit, auxiliary interface unit, and ODU.
Order wireExternal alarm
Transparent data interface
NM cascading network port
Antenna
ODU
RF signal
IF signalIF unit
Serviceinterface
unit
Basebandsignal
Basebandsignal
Auxiliaryinterface
unitClock unit Control unit
Fan andpower
supply unit
Overhead and control bus
E1STM-1eSTM-1o
External clock or WS signal
-48V power supply
NM network port
NM serial port
Cross-connect
unit
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 14Page 14
Software Structure
NM software
Host software
Board softwareODU
In the OptiX RTN 600, all the board software and host software are integrated together and run on the SCC board.
SCC
ODU is regarded as a logical
board. The ODU board software in the
SCC board manages and controls the
ODU hardware through the
management signal between the IDU
and ODU.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 15Page 15
Contents
Equipment Structure
2.1 System Diagram
2.2 Software Structure
2.3 IDU Structure and Board
2.4 ODU Interfaces and
Parameters
2.5 Hybrid coupler Parameters
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 16Page 16
IDU Structure ( IDU 610) IDU 610 is 1U high and adopts
the nature heat dissipation mode.
Support 1+0 configuration.
EXT slot3
PXC slot1
EXT slot4
SCC slot2
Note: The slot numbering rule is from bottom to up and left to right.
IF boardLine board and tributary board
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 17Page 17
IDU Structure ( IDU 620)
IDU 620 is 2U high and
dissipates heat through wind
cooling.
Support a maximum of 4+0
configuration or two groups of
1+1 configuration.
slot20 PXC slot3
PXC slot1
EXT slot4
SCC slot2
EXT slot5 EXT slot6
EXT slot7 EXT slot8 The slot numbering rule is the same as OptiX RTN 610 .
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 18Page 18
IDU Board -- IF Board IF1A
ODU powersupply switch
IF cable interface Indicators
The IF board receives and transmits 1x IF signal. It realizes the
conversion between baseband digital signal and IF signal, it also
provides -48V DC power supply and management signal to the ODU.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 19Page 19
IF1A
-48V power supply is
output directly to ODU.
Support the DC-C
grounding mode only.
IF1B
The -48V power is
isolated by the DC-DC
power supply module
and then sent to the
ODU.
Support DC-I and DC-
C grounding modes.
IF Board -- Types
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 20Page 20
IF Board -- Board Installation
slot20 PXC slot3
PXC slot1
EXT slot4
SCC slot2
EXT slot7
EXT slot3
PXC slot1
EXT slot4
SCC slot2
IDU 610
IDU 620
EXT slot5
EXT slot8
EXT slot6
①
②
③
④
Paired Slots
Paired Slots
No limitation for board installation under HSB configuration.
Only installing IF boards in paired slots under SD or FD
configuration.
Recommended installation sequence for IF boards
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 21Page 21
IF Board -- Block Diagram
Combinerinterface
unit
IF process
unit
Modemunit
MUX /DEMUX
unit
TUPPunit
Cross-connectactive/
standbyunit
SMODEM unit
Clockunit
Powerunit
Logical controlunit
Backplane
IF interface
ODU management signal
Control bus
HSM switch signal
Supportloop-backfunction
Pairedslots
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 22Page 22
IF Board -- Receiving Signal Flow
Digital IF signal
Combinerinterface
unit
IFprocess
unit
Modemunit
SMODEM unit
IF interface
Analog IF signal
ODU management analog signal
Baseband digital signal
Serial port signal
SCC board
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 23Page 23
IF Board -- Receiving Signal Flow (Cont.) When MUX/DEMUX unit works in SDH mode:
Modemunit
MUX /DEMUX
unit
SCCboard
TUPP unit
The first 2M overhead
signal
The second 2M overhead signal--
wayside E1
SDH RS, MS, HP overhead and pointer processing
SDH microwaveframe signal
LINK ID identifies the microwave link and is used to distinguish different microwave links.
Detecting LINKID, ATPC, and
microwave RDI information
Cross-connectionand clock board
Clock signal
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 24Page 24
IF Board -- Receiving Signal Flow (Cont.)
Modemunit
MUX /DEMUX
unit
SCC board
TUPP unit
Only 1x 2M overhead
signal
VC4 signal
Detecting the frame header and
B1 byte
PDH microwave frame signal
Cross-connectionand clock board
Clock signal
Detecting J0, LINKID, ATPC and
microwave link RDI information.
When MUX/DEMUX unit works in PDH mode:
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 25Page 25
Receiving Signal Flow in HSB Mode
MUX / DEMUX unit
TUPP unit
MUX /DEMUX
UnitOn
StandbyIF board
Modemunit
Local board Microwave signal
2 signals are synchronize
d
Standby board Microwave signal
two signals have the
phase difference.
Bite Error or alarm
happened
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 26Page 26
IF Board -- Receiving Signal Flow (Cont.)
MUX /DEMUX
unit
Cross-connection
active/standby
unit
Activecross-
connectionboard
Standbycross-
connectionboard
High-order pointers are
aligned
High-order pointer signal
VC12/VC3 service
VC4 service
TUPP unit
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 27Page 27
IF Board -- Transmitting Signal Flow
MUX /DEMUX
unit
Cross-connectionactive/standby unit
Activecross-
connectionclock board
Standbycross-
connectionclock board
Service
Clock
System clock used by local board
Clock fault
Service
ClockVC4 signal
High-order pointer signal
C1J1
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 28Page 28
IF Board -- Transmitting Signal Flow(cont.)
Modemunit
MUX /DEMUX
unit Cross-connection
active/standby
unit
SCCboard
2M overhead
2M overhead – wayside E1
SDH microwaveframe signal
Process the overhead,
pointer, and scramble.
VC4 signal
High-orderpointer signalInserting LINKID,
ATPC, and microwave link RDI information.
When MUX/DEMUX unit works in SDH mode:
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 29Page 29
IF Board -- Transmitting Signal Flow(cont.) When MUX/DEMUX unit works in PDH mode:
SCCboard
Modemunit
MUX /DEMUX
unit Cross-connection
active/standby
unit
1x 2M overhead
PDH microwaveframe signal VC4 signal
De-mapping TU12 and set the PDH microwave frame overhead, scramble, LINKID, ATPC, and microwave link RDI information.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 30Page 30
IF Board -- Transmitting Signal Flow(cont.)
Combinerinterface
unit
IFprocess
unit
Modemunit
SMODEM unit
IFinterface
IF analog signal
ODU management analog
signal
IF digital signal
Baseband digital signal
Serial port
signal
SCCboard
-48V power supply
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 31Page 31
IF Board -- IF Performance
ItemPerformance
4 X E1 8 X E1 16 X E1 STM-1Modulation mode
QPSK 16QAM QPSK 16QAM QPSK 16QAM 128QAM
Channel spacing (MHz))
7 3.513.75 /14 a
727.5/
28 b13.75 /14
a27.5 / 28 b
Coding scheme
PDH signal is coded through the Reed-Solomon (R-S).
SDH signal is coded through the Trellis-Coded Modulation (TCM) and R-S.
Remarks
a: At the 18G band, the channel spacing is 13.75MHz, At other bands, the channel spacing is 14MHz.
b: At the 18G band, the channel spacing is 27.5MHz. At other bands, the channel spacing is 28MHz.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 32Page 32
IF Board -- IF Signal Parameters
Item Performance
IF signal
Transmitting frequency (MHz)
350
Receiving frequency (MHz)
140
Impedance (ohm) 50
ODU management
signal
Modulation mode ASK
Transmitting frequency (MHz)
5.5
Receiving frequency (MHz)
10
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 33Page 33
IF Board -- Indicators
The space link is faulty. On
The space link is normal.OnLINK
No services are configured. Off
The service has a minor or remote alarm.On
The service has a critical or major alarm.On
The service is normal.On
SRV
The board is not working, not created, or has no input power.
Off
The board hardware is faulty.On
The board is working normallyOn
STAT
MeaningStatusIndicator
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 34Page 34
IF Board -- Indicators
Indicator Status Meaning
ODUOn The ODU is normal.
On The ODU is faulty.
BER
On The microwave BER exceeds the threshold.
Off The microwave BER does not exceed the threshold.
RMT
On The remote equipment has a Remote Defect Indication (RDI).
Off The remote equipment has no RDI.
ACTOn The board is in active state.
Off The board is in standby state.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 35Page 35
IDU Board -- Tributary Board PH1
Indicator 1-8 channel E1
DB44 interfaces
9-16 channel E1DB44 interfaces
The tributary board processes multi-channel E1 signals
and provides the E1 interface.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 36Page 36
Tributary Board -- Types
16-channel E1 interface
75 ohm
PH1A8-channel
E1 interface75 ohm
PO1A PO1BPH1B
16-channel E1 interface
120 omh
8-channel E1 board
120 ohm
Four groups of jumpers
determine the impedance.
Front panel
The board interface impedance is selected through the jumper:
If there is a jumper, the impedance is 75 ohm.
If there is no jumper, the impedance is 120 ohm.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 37Page 37
Tributary Board -- Board installation
slot20 PXC slot3
PXC slot1 SCC slot2
EXT slot7
PXC slot1
EXT slot4
SCC slot2
IDU 610
IDU 620
EXT slot5
EXT slot8
EXT slot6
①
Recommended installation sequence for TU boards
②
③
④
EXT slot4
EXT slot3
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 38Page 38
Tributary Board -- Block Diagram
Tributaryinterface
unit
Codingand
decodingunit
Cross-connectactive/
standby unit
Clock unit
Logicalcontrol
unit
Backplane
E1interface
Control bus
Support loop-backfunction
Mapping/De-mapping
unit
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 39Page 39
Tributary Board -- Indicators
Indicator Status Meaning
STAT
On The board is working normally.
On The board hardware is faulty.
Off The board is not working, or created, or has no input power.
SRV
On The service is normal.
On The service has a critical or major alarm.
On The service has a minor or remote alarm.
Off No services are configured.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 40Page 40
IDU Board -- Line Board SD1/SDE
SMBelectrica
l interface
LC optical
interface
The line board processes 1-2 channel STM-1 signal and
provides STM-1 optical or electrical interface.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 41Page 41
Line Board -- Types
SD1
Dual-port STM-1
optical interface
Ie-1interface
S-1.1interface
L-1.1interface
L-1.2interface
SL1
Single- port STM-1
optical interface
Ie-1interface
S-1.1interface
L-1.1interface
L-1.2interface
SDE
dual-port STM-1
electrical interface
SLE
Single-port STM-1
electrical interface
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 42Page 42
Line Board -- Board installation
slot20 PXC slot3
PXC slot1 SCC slot2
PXC slot1
EXT slot4
SCC slot2
IDU 610
IDU 620
EXT slot5
EXT slot8
EXT slot6
①
②
③
④
EXT slot4
EXT slot3
⑤ EXT slot7
Recommended installation sequence for LU boards
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 43Page 43
Line Board -- Block Diagram
O/Econverter
unit
Overheadprocess
unit
Clockunit
Logicalcontrol
unit
Backplane
Optical interface
Control bus
TUPPunit
Overhead busSupport the loop-back function
Cross-connectactive/
standbyunit
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 44Page 44
Line Board -- Interface Parameters
Item Performance
Nominal bit rate (kbit/s) 155520
Application code Ie-1 S-1.1 L-1.1 L-1.2
Optical fiber typeMulti-mode fiber
G.652 G.652 G.652
Transmission distance (km)
0.5 15 40 80/100
Working wavelength (nm)
1260-1360
1261-1360
1263-1360
1480-1580
Average transmit optical power (dBm)
- 19~ -14 - 15~ - 8 - 5~0 - 5~0
Minimum sensitivity (dBm) -23 -28 -34 -34
Minimum overload (dBm) -14 -8 -10 -10
Minimum extinction ratio (dB) 8.2 8.2 10 10
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 45Page 45
Line Board -- Indicators
Indicator
Status Meaning
STAT
On The board is working normally.
On The board hardware is faulty.
Off The board is not working, or created, or no power supply.
SRV
On The service is normal.
On The service has a critical or major alarm.
On The service has a minor or remote alarm.
Off No services are configured.
LOS1
On No.1 opt. port on the SL1/SD1 board has a R_LOS alarm.
Off No.1 opt. port on the SL1/SD1 board has no R_LOS alarm.
LOS2
On No.2 opt. port on the SD1 board has a R_LOS alarm.
Off No.2 opt. port on the SD1 board has no R_LOS alarm.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 46Page 46
IDU Board -- Ethernet Board EFT4 EFT4 is a Ethernet transparent transmission board. It receives,
transmits and processes four-channel Ethernet signals.
slot20 PXC slot3
PXC slot1 SCC slot2
EXT slot7
PXC slot1
EXT slot4
SCC slot2
IDU 610
EXT slot5
EXT slot8
EXT slot6
①
②
③
④
EXT slot4
EXT slot3
IDU 620
Recommended installation sequence for EFT4 boards
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 47Page 47
Power Cross-Connection Clock Board -- PXC
IndicatorIDUPowerswitch
External clock/Waysideinterface
Power inputinterface
The PXC board realizes the cross-connection (16×16 VC4) and clock functions , it also provides the DC power for other boards.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 48Page 48
PXC -- Board Installation
IDU 610
slot20 PXC slot3
PXC slot1 SCC slot2
EXT slot7
IDU 620
EXT slot5
EXT slot8
EXT slot6
①
② EXT slot4
PXC slot1
EXT slot4
SCC slot2
EXT slot3
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 49Page 49
PXC -- Block Diagram
Externalclockunit
Systempowerunit
Logicalcontrol
unit
Backplane
External clock/
wayside E1 interface
Control bus
Clockunit Cross
-connectunit
Overhead bus
External -48V
power
- 48V
System power supply
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 50Page 50
PXC -- Block Diagram for Wayside E1
Cross-connect board
Cross-connect board
wayside E1
wayside E2
IF board
IF board
IF board
IF board
SCC boardNote: To plug out SCC board may interrupt the wayside E1 services.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 51Page 51
PXC -- Indicators
Indicator Status Meaning
STAT
On The board is working normally.
On The board hardware is faulty.
Off The board is not working, or not created, or has no input power.
PWR
On The power is normal.
On +3.3V power fault or -48V input power abnormal
Off No input power.
SYNCOn The clock is normal.
On The clock source is lost or the switch exists.
ACTOn The board is in active state.
Off The board is in standby status.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 52Page 52
IDU Board -- SCC SCC provides system control and communication functions, auxiliary
interfaces management and standby internal power module.
Indicators
Indicator test button
Reset button
NM serial port
NM interface
NM cascaded interface
Order wire
Asynchronous data and Boolean interface
Flash memory
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 53Page 53
SCC Board -- Board Installation
slot20 PXC slot3
PXC slot1 SCC slot2
EXT slot7
IDU 610
IDU 620
EXT slot5EXT slot8EXT slot6
EXT slot4
PXC slot1
EXT slot4
SCC slot2EXT slot3
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 54Page 54
SCC Board - Block Diagram
Auxiliaryinterface
unit
Systempowerunit
BackplaneOrder wire interface
Control bus
Overheadcross-
connectunit
Overhead bus
- 48V
System power supply
Asyn. data interface
Boolean interface
Controlcomm.
unit
NM interface
Cascaded network port NM serial port
HUB
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 55Page 55
SCC Board -- NM Cable Connection
NMS
The SCC board sets the NE ID through the software. The initial NE
ID is set to 49136 by default.
The IP address of NE is also set through the software. The IP
address is set to 129.9.0.ID by default.
Connected by Ethernet cable
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 56Page 56
SCC Board -- Wrong Connections
Multiple NEs are cascaded as a
loop.
Self-loop of single NE
The connection will cause NE reset frequently.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 57Page 57
PDH Microwave Overhead When the IF board is set as PDH mode, such as 4E1/8E1/16E1,
the DCC, order wire, and asynchronous transparent data
interface can only use one byte.
When the IF board is changed from STM-1 mode to PDH mode, if
the transparent transmission setting of DCC byte occupies the
D1 byte, the manual modification is required. Set the working
mode to DI mode first. Otherwise, when the IF board is changed
to the PDH mode, the DCC is interrupted.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 58Page 58
SCC Board -- Indicators
Indicator
Status Meaning
STAT
On The board is working normally.
On The board hardware is faulty.
Off The board is not working, or not created, or has no input power.
PROG
On 100 ms and off 100 ms
During the board power-on/reset, loading the software.
On 300 ms and off 300 ms
The board software is introduced through the BIOS during the power-on/reset.
On Initialize the upper layer software.
On 100 ms and off 100 ms
During the board power-on/reset, BOOTROM self-test fails.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 59Page 59
SCC Board -- Indicators
Indicator
Status Meaning
PROG
On During the board power-on/reset, the memory self-test fails or the upper layer software loading fails, or during the board running, the logical file and software are lost.
Off The software is normal.
ALM
On The system is normal.
On The system has a critical or major alarm.
On The system has a minor alarm.
Off The system has no input power.
MANT
On The system is in maintenance state ( that is, loop-back, laser power-off, and ODU transceiver mute)
Off The system is in working state.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 60Page 60
IDU Board -- Fan Board (FAN)
Indicator slot
20 PXC slot3PXC slot1 SCC slot2
EXT slot5EXT slot8EXT slot6EXT slot4
EXT slot7
Fan direction
Indicator Status Meaning
FAN
On The fan is working normally.
On The board is faulty.
Off The board has no input power.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 61Page 61
Contents
Equipment Structure
2.1 System Diagram
2.2 Software Structure
2.3 IDU Structure and Board
2.4 ODU Interfaces and Parameters
2.5 Hybrid coupler Parameters
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 62Page 62
ODU -- Interface
< 5 kg Power consumption: < 40WWeight:
< 260 mm X 260 mm X 92 mm (width X height X depth)Dimension:
Grounding double-screw bolt
RSSI test interface IF interface
Antenna port
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 63Page 63
ODU -- Block Diagram
IF interface Antenna portIF
interfaceunit
Powerunit
Control unit
Amplifier
Amplifier Amplifier
Duplexer
Amplifier Upconversion
Downconversion
Frequency synthesizer
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 64Page 64
ODU -- Main Performance
ItemPerformance
7G 15G 18G 23G
Frequency range (GHz)
7.114-7.743
14.501-
15.257
17.685-
19.710
22.000-
23.608
TR spacing (MHz) 161 420 1010 1008
Channel spacing (MHz)
3.5, 7, 14, 28
3.5, 7, 14,
28
3.5, 7,
13.75,
27.5
3.5, 7, 14,
28
The ODU frequency bands covers from 7G to 38G. Some commonly used frequency band indexes are listed in the table.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 65Page 65
ODU -- Main Performance (cont.)
ItemPerformance
7G 15G 18G 23G
maximum Tx (dBm)QPSK 25.5 24.5 24 22.5
16QAM 21 20 20 19
128QAM 15 14 14 13
minimum Tx (dBm) -4
Transceiver frequency stability (ppm) ±5
[Note]: If the transmitting power exceeds the maximum level ,the Bite Error will occur in the service.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 66Page 66
Contents
Equipment Structure
2.1 System Diagram
2.2 Software Structure
2.3 IDU Structure and Board
2.4 ODU Interfaces and Parameters
2.5 Hybrid coupler Parameters
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 67Page 67
Hybrid coupler
Secondary tributary port
Antenna port
Primary tributary port
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 68Page 68
Hybrid coupler -- Main Performance
Item Performance
Flatness (dB) ≤0.5
Attenuation (dB) ≤1.7
Coupling (dB) 6.5±0.6
Isolation (dB) ≥25
Standing wave ratio ≤1.2
Weight (kg) <5
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 69Page 69
Contents
1. Equipment Overview
2. Equipment Structure
3. Equipment Protection
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 70Page 70
1+1 Hot Standby Backup (1+1HSB)
Cross-connection board Service
board
ActiveIF Board
ActiveODU
Hybrid couplerAntenna
StandbyIF Board
StandbyODUmut
e
mute
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 71Page 71
Description of 1+1 HSB
Switch point The services are switched in the cross-connection board.
Switch condition Automatic switch: IF board hardware fault, ODU hardware fault,
remote failure indication, and microwave frame loss.,
Manual switch: locking, forced, manual, and clearing
Characteristics The active/standby unit has no restrictions on the paired slots.
The switch actions are implemented by the software and
hardware.
The service will be interrupted in the case of switch.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 72Page 72
1+1 Space Diversity (1+1 SD)
Cross-connection board Service
board
ActiveIF BoardActive
ODU
Antenna 1
StandbyIF Board
StandbyODU
Antenna 2
Mute
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 73Page 73
1+1 Frequency Diversity (1+1 FD)
Cross-connectionboard Service
board
ActiveIF Board
ActiveODU
HybridAntenna
StandbyIF Board
StandbyODUtf2
rf2
tf1
rf1
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 74Page 74
Space Frequency Diversity (1+1 SD+FD)
Cross-connectionboard Service
board
ActiveIF Board
ActiveODU
Antenna 1
StandbyIF board
StandbyODU
Antenna 2
tf2
rf2
tf1rf1
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 75Page 75
Description of Hitless Switch (HSM) Switch point
The services are switched on the IF board.
Switch condition Automatic switch: microwave frame loss, microwave signal
loss, microwave bit error , and the HSB switch triggers HSM receives forcibly the services from standby board.
Manual switch: Force switch, clear.
Characteristics The Active /standby IF board must in paired slots.
Switch is implemented by hardware.
Service has no interruption during switch.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved. Page 76Page 76
Reverse Switch
Introduction When the system fails to detect the hardware faults in the
transmission direction, the HSB and SD cannot be triggered.
Switch condition Remote site detecting the failure and send RDI to local site to
trigger the HSB or SD switch.
Characteristics It is only configured in the case of HSB or SD.
Through the service detection, all the hardware faults in the transmission direction can be protected.
Fail to accurately differentiate the hardware fault and external fading. After the fading, the repeated switch may be caused.
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