02 opti x rtn 900 v100r002 system hardware-20100223-a

Security Level:

OptiX RTN 900 V1R2
System Hardware

www.huawei.com

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Preface

The OptiX RTN 900 is a new generation split
microwave transmission system developed by Huawei.
It can provide a solution that is integrated with the TDM
microwave, Hybrid microwave, and Packet microwave
based on the network requirements. RTN 900 V1R1
support pure packet microwave, and RTN 900 V1R2
support TDM microwave and Hybrid microwave.
This course describes the network position, system
architecture, and hardware structure of the OptiX RTN
900. 。

Page 2

References

OptiX RTN 910 V100R002 hardware
description documentation
OptiX RTN 950 V100R002 hardware
description documentation

Page 3

Target
After completing this course, you should be
familiar with the following information:
Network position and networking application of the
OptiX RTN 900 V1R2
System architecture of the OptiX RTN 900 V1R2
Hardware structure of the OptiX RTN 900 V1R2
Functions and applications of each board on the
OptiX RTN 900 V1R2

Page 4

Contents

• Network Position and Networking
Application
• System Architecture
• Hardware Structure
• Boards

Page 5

Network Position
 The OptiX RTN 900 is a new generation split microwave transmission system developed by Huawei. It
can provide a seamless microwave transmission solution for a mobile communication network or
private network.
 The OptiX RTN 900 products are available in two types: OptiX RTN 910 and OptiX RTN 950. The IDU
of the OptiX RTN 910 is 1U high and supports one or two IF boards. The IDU of the OptiX RTN 950 is
2U high and supports one to six IF boards. The users can choose an appropriate type based on the
actual requirements.
 The OptiX RTN 900 provides several types of service interfaces and facilitates installation and flexible
configuration. It can provide a solution that is integrated with the TDM microwave, Hybrid microwave,
and Packet microwave based on the network requirements. It supports the smooth upgrade from the
TDM microwave to the Hybrid microwave, and from the Hybrid microwave to the Packet microwave.
The solution can evolve based on the service changes that occur due to radio mobile network
evolution. Thus, this solution can meet the transmission requirements of not only 2G and 3G networks,
but also future LTE and 4G networks.
 RTN 900 V1R1 support pure packet microwave, and RTN 900 V1R2 support TDM microwave and
Hybrid microwave.

Page 6

Network Application － TDM microwave
transmission solution

E1
E1
E1

E1

E1 STM-1/E1 Regional Backhaul E1
Network

E1
E1
E1 E1

OptiX RTN 900 BTS BSC

 When the OptiX RTN 910 supports the microwave transmission in three directions or more, you can adopt
the NE cascading mode or use the OptiX RTN 950, which has more powerful functions.

Page 7

Network Application － Hybrid microwave
transmission solution

E1
FE E1

FE
E1
E1
STM-1/E1
Regional Backhaul
E1
Network
FE/GE

GE

E1

FE
E1

OptiX RTN 900 NodeB BTS RNC BSC

 When the OptiX RTN 910 supports the microwave transmission in three directions or more, you can adopt
the NE cascading mode or use the OptiX RTN 950, which has more powerful functions.

Page 8

Contents

Application
• Boards

Page 9

System Architecture——TDM Microwave
 The SDH/PDH microwave equipment consists of a series of functional units, including the
service interface unit, timeslot cross-connect unit, IF unit, control unit, clock unit, auxiliary
interface unit, fan unit, power unit, and ODU.

Service Accesses E1 signals.
interface Accesses STM-1 signals.
unit
Service Provides the cross-connect
switching function and grooms TDM
unit services.
IF unit Maps service signals to
microwave frame signals and
demaps microwave frame
signals to service signals.

Performs conversion between
IF analog signals.

…

Page 10

System Architecture——Hybrid Microwave
 The Hybrid microwave equipment consists of a series of functional units, including the
service interface unit, timeslot cross-connect unit, packet switching unit, IF unit, control
unit, clock unit, auxiliary interface unit, fan unit, power unit, and ODU.
Service Accesses E1 signals
interface Accesses STM-1 signals
unit Accesses Ethernet signals.
Timeslot Provides the cross-connect
cross- function and grooms TDM
connect services.
unit

Packet Processes Ethernet services
switching and forwards packets.
unit
IF unit Maps service signals to
demaps microwave frame
signals to service signals

Performs conversion between
microwave frame signals and IF
analog signals.
…

Page 11

RTN 910——Service Signal Processing Flow

 SDH/PDH Microwave

 Hybrid Microwave

Page 12

RTN 950 ——Service Signal Processing Flow

 SDH/PDH Microwave

 Hybrid Microwave

Page 13

Contents

Application
• Boards

Page 14

Hardware Structure
RTN 900 series
 The RTN 900 is of a split structure,
consisting of the IDU and the AOC.
Universal AOC
The AOC is universal. The IDU is
classified into the IDU 910 and IDU
950.
 Boards are inserted in the IDU. The
IDU can realize different functions by
IDU 910 IDU 950 housing different boards.

Uniform platform and standard design:
 Two types of case-shaped equipment: IDU 910 (1U) and IDU 950 (2U)
 The IDU 910 and IDU 950 support the same IF boards and service interface boards.
 Different system control and communication unit, switching unit, and clock unit integrated boards are
used on the IDU 910 and IDU 950.
Switching capacity of the IDU 910 ： 4.2G ， CSHA/CSHB/CSHC ；
Switching capacity of the IDU 950 ： 10G ， CSH ；
Cross-Connect capacity of IDU 910: 8×8 个 VC-4 ， CSTA ；
Cross-Connect capacity of IDU 910: 32×32 个 VC-4 ， CSTA ；
 The power supply boards and fan boards used on the IDU 910 and IDU 950 are of different functional
versions.

Page 15

Hardware Structure － IDU 910
 A maximum of two microwave
directions are supported.
 The 1+1 HSB/SD/FD is supported.
 The 2+0 configuration is supported.
 The XPIC is supported.

442 mm (width) x 220 mm (depth) x 44.45 mm (height)

Paired slots
for housing the service
interface boards or IF boards

 "EXT" represents an extended slot, which can house an IF board or
a service interface board.
 All the boards except the power supply board support hot
swapping.
Page 16

Hardware Structure － IDU 950
 2U high
 A maximum of six microwave directions
are supported.
 The 1+1 HSB/SD/FD is supported.
 The N+0 configuration (N≤5) is supported.
 The N+1 configuration (N≤5) is supported.
442 mm (width) x 220 mm (depth) x 88.9 mm (height)
 The XPIC is supported.

Integration card (1+1) Paired slots
Paired slots

Power(1+1)

Paired slots

 "EXT" represents an extended slot, which can house an IF board or a service interface board.
 All the boards except the power supply board support hot swapping.

Page 17

Contents

Application
• Boards

Page 18

Contents

• Boards
 TDM system control, cross-connect, and timing board
 CSTA
 CST
 Hybrid system control, cross-connect, and timing board
 IF board
 Service interface board
 Auxiliary and management interface board
 Power supply board and fan board

Page 19

CSTA— Functions and Features

 The CSTA provides the full time division cross-connection, system control and
communication, and clock processing functions. In addition, the CSTA provides
PDH/SDH service interfaces, auxiliary interfaces, and management interfaces.
Grooms service signals between boards. Supports full time division cross-connections at the VC-
12, VC-3, or VC-4 level, which are equivalent to 8x8 VC-4s.
Provide two STM-1 optical interfaces and sixteen E1 service interfaces.
Provides one Ethernet NM interface and NM serial interface.
Provides one NE cascade interface.
Supports one input and one output of the external clock. / Bypass E1 service interface.
Provides one asynchronous / synchronous data interface.
Provides one three-input and one-output external alarm interface.
Provides one Orderwire interface.

Page 20

CSTA—Functional Modules
Functional modules:
 The CSTA comprises the
system control and
communication unit,
cross-connect unit, clock
unit, service processing
unit, auxiliary interface
unit, and power supply
unit.

Page 21

CSTA — Slot allocation

CSTA boards are inserted in slots 1 and 2 in the IDU 910 chassis.

 The CXPAR/CXPBR boards can be inserted only in slots 1 and 2 in the IDU 910 chassis.
 The CXPAR/CXPBR boards cannot be inserted in the IDU 950 chassis.

According to the functional units, the CSTA is mapped into the logical system control and
communication board (CSTA), logical auxiliary and management board (AUX), and
logical service boards (SL1D and SP3S) on the NMS.

Page 22

CSTA —Interfaces
external clock/ Bypass E1
service interface
Buttons
Indicators NE cascade Orderwire phone
interface interface (RJ-45
connector)

Synchronous/A
NM interface/NM
synchronous E1 (1-16)
serial interface
data interface interface
STM-1 optical
interfaces
Alarm input/output
interface

NOTE:
 The external clock interface and wayside E1 interface are combined into one interface. This interface can transparently transmit
the DCC byte, orderwire overhead byte, and synchronous/asynchronous data service overhead byte. One interface, however,
can implement only one of the three functions: external clock interface, wayside E1 service, and transparent transmission of the
overhead byte.
 The 64 kbit/s synchronous data interface can transparently transmit the orderwire byte. One interface, however, can implement
only one of the two functions: 64 kbit/s synchronous data interface and transparent transmission of the orderwire byte.

Page 23

CSTA—Indicators
Indicator Color State Description

On (green) The board is working normally.

On (red) The board hardware is faulty.
STAT indicator
The board does not start to work, is not
Off
created, or is not powered on.

The upper layer software is being initialized or
On (green)
the software is working normally.

The memory self-check fails, the upper layer
On (red) software fails to be loaded, the logic file is lost,
or the upper layer software is lost.

On for 100 ms The information is being written to the flash or
PROG indicator (green) and off for
100 ms repeatedly the software is being loaded.

On for 300 ms When the board is being powered on or being
(green) and off for
300 ms repeatedly reset, the board software is in BIOS boot state.

On for 100 ms (red) The BOOTROM self-check fails or the loading
and off for 100 ms
repeatedly of the FPGA fails.

Page 24

CSTA—Indicators

On (green) The clock is operating normally.
SYNC indicator
On (red) The clock source is lost or is switched.

The services are working normally and no
On (green)
alarms occur in the services.

A critical or major alarm occurs in the
On (red)
SRV indicator services.

A minor or remote alarm occurs in the
On (yellow)
services.

Off There is no power supplied to the system.
The first optical interface on the line reports
On (red)
the R_LOS alarm.
LOS 1
The first optical interface on the line does not
Off
report the R_LOS alarm.
The second optical interface on the line
On (red)
reports the R_LOS alarm.
LOS 2
The second optical interface on the line does
Off
not report the R_LOS alarm.

Page 25

CSTA—Buttons

Button Description
Used to restore the configuration
CF RCV button
data from the CF card.
Used to perform a warm reset on
RST button
the equipment.

Page 26

CST—Functions and Features

 The CST provides the time division cross-connection, system control and communication,
and clock processing functions. In addition, the CST provides the auxiliary interfaces and
management interfaces.
Grooms TDM service signals between boards. Supports full time division cross-connections at the

VC-12, VC-3, or VC-4 level, which are equivalent to 32x32 VC-4s.
Provides one Ethernet NM interface/NM serial interface .
Support one external clock interface/ wayside E1 interface.

Page 27

CST— Functional Modules
Functional modules:
 The CST comprises the
system control and
communication unit,
unit, and power supply
unit.

Page 28

CST—Slot allocation
The CST boards can be inserted in slots 7 and 8 and form a 1+1 protection group.

Note ：

 The CST boards can be inserted only in slots 7 and 8 in the IDU 950 chassis and form a
1+1 protection group.
 The CST board cannot be installed in the IDU 910 chassis.
 The logical slot of the CST on the NMS should be the same as the physical slot.

Page 29

CST —Interfaces
External clock
interface/The first time
interface/The wayside E1
interface
Indicators NM cascade
Button interface

NM interface/NM
serial interface The second time interface

Note ：
 The external clock interface and wayside E1 interface are combined into one interface. This interface can transparently
transmit the DCC byte, orderwire overhead byte, and synchronous/asynchronous data service overhead byte. One interface,
however, can implement only one of the three functions: external clock interface, wayside E1 service, and transparent
transmission of the overhead byte.

Page 30

CST—Indicators


STAT indicator
Off

On (green)



(green) and off for

and off for 100 ms

Page 31

CST—Indicators
SYNC indicator

On (green)

On (red)

On (yellow)
services.

The board is in the active state in the 1+1
protection system.
On (green) The board is already activated in the
unprotected system.
ACT
The board is in the standby state in the 1+1
protection system.
Off The board is not activated in the unprotected
system.

Page 32

CST—Buttons
Button Description

CF RCV button Used to restore the configuration data from the CF card.

RST button Used to perform a warm reset on the equipment.

Page 33

Contents

• Boards
 CSHA/CSHB/CSHC
 CSH
 IF board

Page 34

CSHA/ CSHB/CSHC—Functions and Features
 The CSHA/CSHB/CSHC provides the 4.2 Gbit/s packet switching, full time division cross-connection, system control
and communication, and clock processing functions. In addition, the CSHA/CSHB/CSHC provides FE/GE interfaces,
PDH/SDH interfaces, auxiliary interfaces, and management interfaces.
 Support Packet Switch, Provides the 4.2 Gbit/s packet switching capability.
 Supports full time division cross-connections at the VC-12, VC-3, or VC-4 level, which are equivalent to 8x8 VC-
4s.
 Provides TDM service interfaces: The CSHA provides sixteen 75-ohm/120-ohm E1 data interfaces. The CSHB
provides thirty-two 75-ohm/120-ohm E1 data interfaces. The CSHC supports sixteen 75-ohm/120-ohm E1 data
interfaces and two STM-1 optical interfaces. The two STM-1 optical interfaces use the SFP optical modules.
 Provides Eth service interfaces: The CSHA provides two FE electrical interfaces and two GE electrical
interfaces. The two GE electrical interfaces can also transmit FE electrical signals. The CSHB provides two FE
electrical interfaces and two GE electrical interfaces. The two GE electrical interfaces can also transmit FE
electrical signals. The CSHC provides two FE electrical interfaces and two GE optical interfaces. The two GE
optical interfaces use the SFP optical modules.
 Provides one Ethernet NM interface/ NM serial interface.
 Provides one NE cascade interface.
 Provides one input and one output of the external clock. / Bypass E1 service interface.
 Provides one asynchronous data interface / synchronous data interface .
 Provides one three-input and one-output external alarm interface.
 Provides one Orderwire interface.

Page 35

CSHA/ CSHB/CSHC—Functions and Features
 The differences between the CSHA, CSHB, and CSHC are with regard to the types and number
of service interfaces.

 CSHA ： 2* FE(e) +2*GE(e)+16*E1

 CSHB:2* FE(e) +2*GE(e)+32*E1

 CSHC:2* FE(e) +2* GE(o)+16*E1+2*STM-1(o)

Page 36

CSHA/ CSHB/CSHC—Functional Modules
Functional Modules ：
 The CSHA/CSHB/CSHC
comprises the system
control and
communication unit,
packet switching unit,
unit, service interface
unit, and auxiliary
interface unit.

Page 37

CSHA/ CSHB/CSHC—Slot Allocation
CSHA/CSHB/CSHC boards are
inserted in slots 1 and 2 in the
IDU 910 chassis.

 The CXPAR/CXPBR boards can be inserted only in slots 1 and 2 in the IDU 910 chassis.
 The CXPAR/CXPBR boards cannot be inserted in the IDU 950 chassis.
 Different logical boards are allocated for the CSHA, CSHB, and CSHC on the NMS.

 Logical slots for the logical boards of the CSHA

 Logical slots for the logical boards of the CSHB

 Logical slots for the logical boards of the CSHC

Page 38

CSHA/ CSHB/CSHC—Interfaces
Button External clock/time interface /The wayside E1 interface
 CSHA
Indicators
NE cascade interface Orderwire 2*FE 2*GE interfaces
interface interfaces

Synchronous/ Alarm
NM interface/NM E1 (1-16) interface
Asynchronous input/output
serial interface
data interface interface

Auxiliary interfaces and FE service GE service
 CSHB management interfaces interfaces interface E1 （ 1 ～ 16,17~32 ）

 CSHC Auxiliary interfaces and FE service GE service STM-1 service E1 （ 1 ～ 16 ）
management interfaces interfaces interfaces interfaces
Page 39

CSHA/ CSHB/CSHC—Indicators

STAT indicator
Off

On (green)



(green) and off for

and off for 100 ms

Page 40


SYNC indicator

On (green)

On (red)

On (yellow)
services.


Page 41

LINK 1 On (green) The port connection is normal.

Off The port connection is interrupted.

ACT 1 On or blinking The data is being transmitted or received.
(yellow)
Off No data is being transmitted or received.

LINK 2 On (green) The port connection is normal.

Off The port connection is interrupted.

ACT 2 On or blinking The data is being transmitted or received.
(yellow)
Off No data is being transmitted or received.

LOS 1 On (red) The first optical interface on the line reports the
R_LOS alarm.
Off The first optical interface on the line does not
LOS 2 On (red) The second optical interface on the line reports the
R_LOS alarm.
Off The second optical interface on the line does not

Page 42

CSHA/ CSHB/CSHC—Buttons
Button Description

CF RCV button Used to restore the configuration data from the CF card.

RST button Used to perform a warm reset on the equipment.

Page 43

CSH—Functions and Features

 The CSH provides the 10 Gbit/s packet switching, full time division cross-connection,
system control and communication, and clock processing functions. In addition, the CSH
provides auxiliary interfaces and management interfaces.
Support Packet Switch, Provides the 10 Gbit/s packet switching capability.
Supports full time division cross-connections at the VC-12, VC-3, or VC-4 level,
which are equivalent to 32x32 VC-4s.
Provides one Ethernet NM interface/ NM serial interface.
Provides one input and one output of the external clock. / Bypass E1 service
interface.

Page 44

CSH—Functional Block Diagram
 The CSH comprises
the system control
and communication
unit, packet switching
unit, cross-connect
unit, clock unit, and
power supply unit.

Page 45

CSH—Slot Allocation
The CSH boards can be inserted in slots 7 and 8 and form a 1+1 protection group.

 The CST boards can be inserted only in slots 7 and 8 in the IDU 950 chassis and form a
1+1 protection group.
 The CST board cannot be installed in the IDU 910 chassis.
 The logical slot of the CST on the NMS should be the same as the physical slot.

Page 46

CSH —Front Panel
Indicators:
Board hardware status indicator (STAT) – three colors
(red, green, and yellow)
Program running status indicator (PROG) – two colors
(red and green)
Synchronization status indicator (SYNC) – two colors (red
and green) External clock/time The second time
Service status indicators (SRV)-three colors (red, green, interface /The interface
and yellow) wayside E1 interface
Protection status indicators （ ACT ）－ Green indicator

NM NE cascade
interface/NM interface
serial interface

CF RCV button: used to restore the configuration data from the CF card. After you press the CF RCV button
for 5 seconds, the equipment automatically restores the configuration data from the CF card.
RST button: used for warm reset on the board. When you press the RST button and then release it, a warm
reset is performed on the board.

Page 47

Contents

• Boards
 CSHA/CSHB/CSHC

 CSH

 IF board
 IF1
 IFU2
 IFX2

Page 48

IF1 － Functions and Features

 The IF1 is a medium-capacity SDH IF board . The IF1 board has the following functions
 IF processing functions:
Maps SDH and PDH service signals into microwave frame signals.
Codes and decodes microwave frame signals.
Modulates and demodulates microwave frame signals
Modulates and demodulates ODU control signals
Combines and splits service signals, ODU control signals, and -48 V power
supplies.
Support ATPC （ Automatic Transmit Power Control ） function.
 Protection Processing functions:
Support 1+1 HSB/FD/SD protection.
Support 1+1 FD/SD hitless switching.
Support N+1 protection.

Page 49

IF1 － Functional Block Diagram

 The IF1 board consists of
the combiner interface
module, IF processing
module, MODEM module,
SMODEM module,
MUX/DEMUX module, logic
and control module, power
module, and clock module.

Page 50

IF1 － Slot Allocation
 The IF1 receives and transmits one IF signal and provides the management channel to
the ODU and supplies the required -48 V power to the ODU.

IDU 910:
 The IF1 board can be inserted in
slot 3 or slot 4.

IDU 950: IDU 910
 The IF1 board can be inserted in
any of slots 1 to 6.
 To configure a 1+1 FD/SD
protection group, the IFE2
boards must be inserted in
paired slots.
 The paired slots supported by
the IDU 950 are as follows: (slot
1, slot 2), (slot 3, slot 5), and IDU 950
(slot 4, slot 6).
 Slot allocation priority : Slots 3
and 5 > slots 4 and 6 > slots 1
and 2

Page 51

IF1 － Front Panel ODU switch
When the switch is set to "O", it
indicates that the circuit is open.
When the switch is set to "I", it
indicates that the circuit is
closed.

IF interface (TNC) Indicators:
 Working status indicator (STAT) – two colors (red and
green)
 Status indicator (SRV) – three colors (red, green, and
yellow)
 Radio link status indicator (LINK) – one color (green)
 ODU status indicator (ODU) – three colors (red, green, and
yellow)
 Remote end status indicator (RMT) – one color (yellow)
 Protection status indicator (ACT) – one color (green)

Page 52

IF1——Indicators

STAT On (red) The board hardware is faulty.
indicator
The board does not start to work, is not created, or is not
Off
powered on.

On (green) The services are working normally and no service alarm occurs.
SRV
On (red) A critical or major alarm occurs in the services.
indicator
On (yellow) A minor or remote alarm occurs in the services.
On (green) The ODU is working normally.
On (red) The ODU has a critical or major alarm or has no power supply.
ODU On (yellow) The ODU has a minor alarm.
indicator
On for 300 ms
(yellow) and off for The receive power of the ODU is lower than the required value.
300 ms repeatedly

RMT The microwave defect indication alarm is received from the
On (yellow)
indicator opposite end.

The board is in the active state in the 1+1 protection system.
On (green)
ACT The board is already activated in the unprotected system.
indicator The board is in the standby state in the 1+1 protection system.
Off
The board is not activated in the unprotected system.

Page 53

IFU2 － Functions and Features

 The IFU2 is a general IF board, which can support the Hybrid microwave transmission and Packet
microwave transmission at the same time. In this version, the IFU2 supports only the Hybrid microwave
transmission.
Supports the Hybrid microwave frames, and supports the pure transmission of E1 or Ethernet

signals and the hybrid transmission of E1 and Ethernet signals.
Supports the adaptive modulation (AM) technology.
Provides a maximum of 56 MHz signal bandwidth and supports the highest modulation mode of

256QAM.
Maps service signals into microwave frame signals.
Modulates and demodulates microwave frame signals.
Modulates and demodulates ODU control signals.
Combines and splits service signals, ODU control signals, and -48 V power supplies.

Page 54

IFU2 － Functional Block Diagram

 The working principle and signal flow of
the Packet microwave IF signals are
similar to the working principle and signal
flow of the Hybrid microwave IF signals.
The only difference is with regard to the
frame structure. In the case of the Packet
microwave, the MUX/DEMUX unit only
multiplexes/demultiplexes the packet
services and does not transmit the TDM
services to the cross-connect unit or
receive the TDM services from the cross-
connect unit.

Page 55

IFU2 － Slot Allocation
 The IFU2 receives and transmits one Hybrid/Packet IF signal, provides the management
channel to the ODU, and supplies the required -48 V power to the ODU.
IDU 910:
 The IFU2 board can be inserted
in slot 3 or slot 4.
IDU 910

IDU 950:
 The IFU2 board can be inserted
in any of slots 1 to 6.
paired slots.
(slot 4, slot 6).
and 2

Page 56

IFU2 － Front Panel ODU switch
When the switch is set to "O", it
indicates that the circuit is open.
When the switch is set to "I", it
indicates that the circuit is closed.

 Working status indicator (STAT) – two colors (red and
green)
 Status indicator (SRV) – three colors (red, green, and
yellow)
 Radio link status indicator (LINK) – one color (green)
 ODU status indicator (ODU) – three colors (red, green,
and yellow)
 Remote end status indicator (RMT) – one color (yellow)
 Protection status indicator (ACT) – one color (green)

Page 57

IFX2 － Functions and Features

 The IFX2 is a general IF board, which can support the XPIC function of the Hybrid microwave and
SDH microwave. In this version, the IFX2 supports only the Hybrid microwave transmission.
Supports the XPIC function, provides the XPIC input and output interfaces, and supports the

manual configuration of the XPIC function.
Supports the Hybrid microwave frames and supports the pure transmission of E1 or

Ethernet signals and the hybrid transmission of E1 and Ethernet signals.
Supports the adaptive modulation (AM) technology.
Provides the maximum signal bandwidth of 56 MHz and supports the highest modulation
mode of 256QAM.
Maps service signals into microwave frame signals.
Modulates and demodulates microwave frame signals.
Modulates and demodulates ODU control signals.
Combines and splits service signals, ODU control signals, and -48 V power supplies.

Page 58

IFX2 － Functional Block Diagram

 The working principle and signal
flow of the Packet microwave IF
signals are similar to the working
principle and signal flow of the
Hybrid microwave IF signals. The
only difference is with regard to
the frame structure. In the case of
the Packet microwave, the
MUX/DEMUX unit only
multiplexes/demultiplexes the
packet services and does not
transmit the TDM services to the
cross-connect unit or receive the
TDM services from the cross-
connect unit.

Page 59

IFX2 － Slot Allocation
IDU 910:
 The IFX2 board can be inserted
in slot 3 or slot 4.
IDU 910

IDU 950:
 The IFX2 board can be inserted
in any of slots 1 to 6.
paired slots.
(slot 4, slot 6).
and 2

Page 60

IFX2 － Front Panel ODU switch
When the switch is set
to "O", it indicates that the
circuit is open. When the
switch is set to "I", it
indicates that the circuit is
closed.
XPIC signal
interfaces

XPIC input signal indicator （ XPIC ）— two colors (red
and green).
Working status indicator (STAT) – two colors (red and
green)
Status indicator (SRV) – three colors (red, green, and
yellow)
Radio link status indicator (LINK) – one color (green)
ODU status indicator (ODU) – three colors (red, green, and
yellow)
Remote end status indicator (RMT) – one color (yellow)
Protection status indicator (ACT) – one color (green)

Page 61

Precautions to Be Taken When Handling the
IF Boards

1
The ODU-PWR switch is equipped
with a lockup device. To turn on or
turn off the switch, you need to first
pull the switch lever outwards
slightly.

Page 62

Precautions to Be Taken When Handling
the IF Boards

2
When the ODU switch is set to “I”, do
not insert or remove the IF cable.

Page 63

IF Signal Parameters of the IFE2

Item Performance
Transmit frequency (MHz) 350

Receive frequency (MHz) 140
IF signal
Impedance (ohm) 50

Modulation mode ASK

ODU
Transmit Frequency (MHz) 5.5
management
signal
Receive frequency (MHz) 10

Page 64

Contents

• Boards
 CSHA/CSHB/CSHC

 CSH

 IF board
 IF1

 IFU2

 IFX2

 EM6T/EM6F
 SL1D
 SP3S/SP3D
 AUX

Page 65

EM6T/EM6F － Functions and Features

 The EM6T/EM6F is an FE/GE interface board, which provides four FE electrical
interfaces and two GE interfaces. The EM6T has similar functions to the EM6F. The only
difference is as follows: the GE interfaces on the EM6T always function as electrical
interfaces whereas the GE interfaces on the EM6F use the SFP modules and therefore
can function as two optical or electrical interfaces. The GE electrical interfaces on the

EM6F and the EM6T are compatible with the FE electrical interfaces.
 The EM6T/EM6F accesses, processes, and aggregates four FE signals and two GE
signals. In R2 version, the backplane service bus is 1G.
 EM6T/EM6F support LAG function, support ERPS.
 EM6T/EM6F support E-Line and E-Lan.
 EM6T/EM6F supports synchronous Ethernet.
 EM6T/EM6F support ETH-OAM function.

Page 66

EM6T/EM6F － Functional Block
Diagram

Page 67

EM6T/EM6F—Slot Allocation

IDU 910:
 The EM6T/EM6F board can
be inserted in slot 3 or slot 4.
IDU 910

IDU 950:
 The EM6T/EM6F board can be
inserted in any of slots 1 to 6.
 Slot allocation priority ： Slots 4
and 5 IDU 950

Page 68

EM6T/EM6F—Front Panel

GE
FE interfaces-
Indicators interfaces- GE
RJ45 interfaces-LC RJ45

 GE electrical interfaces on the front panel of the EM6T are compatible with the FE interfaces. The GE
interfaces on the front panel of the EM6F use pluggable SFP optical modules.
 The FE electrical interfaces and GE electrical interfaces support the MDI and MDI-X adaptation modes.
 The FE interfaces support 10M full duplex, 10M half duplex, 100M full duplex, 100M half duplex, and
auto-negotiation.
 The GE electrical interfaces support 10M full duplex, 10M half duplex, 100M full duplex, 100M half
duplex, 1000M full duplex, and auto-negotiation.
 The GE optical interfaces support 1000M full-duplex and auto-negotiation.

Page 69

SL1D － Functions and Features

 The SL1D is an SDH dual-port STM-1 board. The SL1D transmits and receives 2xSTM-1
optical signals.
Supports the automatic laser shutdown (ALS) function.
Supports SNCP and LMSP.
Supports the inloop and outloop over optical interfaces.
Supports the outloop on VC-4 paths.
Supports the warm reset and cold reset on the board.
Supports the query of the board manufacturing information.
Supports the in-service upgrade of the FPGA.

Page 70

SL1D － Functional Block Diagram

Page 71

SL1D—Slot Allocation

IDU 910:
 The SL1D board can be
inserted in slot 3 or slot 4.
IDU 910

IDU 950:
 The SL1D board can be
and 5. IDU 950

Page 72

SL1D—Interfaces

Indicators: STM-
Working status indicator (STAT) – two
colors (red and green) 1interface-LC
Status indicator (SRV) – three colors
LOS1/LOS2: Whether the optical
interface have the R_LOS alarm.

 The type of the SFP optical module equipped on the SL1D, provides Ie-1 （ Multi-mode,
2km ）、 S-1.1 （ Single-mode, 15km ）、 L-1.1 （ Single-mode, 40km ）、 L-1.2
（ Single-mode, 80km ）。

Page 73

SP3S/SP3D － Functions and Features

 The SP3S is a 16xE1 75-ohm/120-ohm tributary board. The SP3D is a 32xE1 75-
ohm/120-ohm tributary board.
 The E1 interface impedance of the SP3S/SP3D can be identified by the board feature
code of the bar code. In the bar code, the board feature code is the number next to the
board name.

Board Feature Code Interface Impedance (Ohm)

A 120

B 75

Page 74

SP3S/SP3D － Functional Block Diagram

Page 75

SP3S/SP3D —Slot Allocation

IDU 910:
 The SP3S/SP3D board can
be inserted in slot 3 or slot 4.
IDU 910

IDU 950:
 The SP3S/SP3D board can be
and 5. IDU 950

Page 76

SP3S/SP3D —Interfaces

Indicators:
Working status indicator (STAT) – two E1 interface
colors (red and green)

NOTE:
In the case of the OptiX RTN 900, only the ports 1-16 and 22-37 of the SP3D interface are
used. Ports 1-16 correspond to E1 signals 1-16 and ports 22-37 correspond to E1 signals 17-
32.

Page 77

AUX － Functions and Features

 The AUX is the auxiliary and management interface board of the OptiX RTN 950 V1R2.
One NE can house only one AUX.
 The AUX provides multiple auxiliary interfaces and management interfaces, including the
one orderwire interface, one synchronous data interface, one asynchronous data
interface, and one four-input/two-output external alarm interface.
Provides one orderwire interface.
Provides one 64 kbit/s synchronous transparent data interface.
Supports one 19.2 kbit/s asynchronous transparent data interface.
Supports the input of four channels of external alarms.
Supports the output of two channels of external alarms.
Supports hot swapping.
Supports the detection of the board power supply.

Page 78

AUX － Functional Block Diagram

Page 79

AUX － Interfaces

Synchronous/ Orderwire Alarm
Asynchronous phone output
data interface

Indicators:
Working status indicator (STAT) – two
Alarm input
colors (red and green)

说明：
The OptiX RTN equipment also supports the orderwire group call function. For example, when an OptiX RTN
equipment calls the number of 888, the orderwire group call number, all the OptiX RTN equipment orderwire phones
in the orderwire subnet ring until a phone is answered. Then, a point-to-point orderwire phone call is established.

Page 80

AUX—Slot Allocation

IDU 950

 The AUX board can be inserted in any of slots 1 to 6.
 An NE can house only one AUX board.
 The AUX board cannot be installed in the IDU 910 chassis.

Page 81

Contents

• Boards
 CSHA/CSHB/CSHC

 CSH

 IF board
 IF1

 IFU2

 IFX2

 PIU
 FAN

Page 82

Types of the PIU
 The PIU board supports the functions and features such as power access, power
protection, lightning protection, and information reporting.

Functional
Board Description Valid Slot
Version

Power access unit of the OptiX RTN
PIU TNC1 Slot 5 in the IDU 910
910

Power access unit of the OptiX RTN
PIU TND1 Slot 9 and slot 10 in the IDU 950
950

IDU 910:
 The PIU board whose functional
version is TNC1 is fixedly inserted
in slot 5. The two accessed power
supplies function as a hot backup
for each other.

IDU 950:
 The PIU boards that have the
functional version of TND1 are
fixedly inserted in slot 9 and slot 10.
The two PIU boards function as a hot
backup for each other.

Page 83

Front Panel of the PIU
TNC1 PIU TND1 PIU

BGND power
input interface When the
PWRA and
PWRB indicators BGND power
are on and input interface
green, it
indicates that the
power is
accessed. –48 V power
–48 V power input interface
input interface

One PIU board whose functional version is TNC1  One PIU board whose functional version is TND1 accesses one –48 V
accesses two –48 V DC (or -60 V DC) power DC (or –60 V DC) power supply for the equipment. The PIU boards
supplies for the equipment. The two power that have the functional version of TND1 are fixedly inserted in slot 9
supplies function as a hot backup for each other.
and slot 10. The two PIU boards function as a hot backup for each
other.

Page 84

Types of the FAN
 The FAN adjusts the fan rotating speed, and detects and reports the fan status.

Functional
Board Description Valid Slot
Version

FAN TNC1 Fan of the OptiX RTN 910 Slot 5 in the IDU 910

FAN TND1 Fan of the OptiX RTN 950 Slot 9 and slot 10 in the IDU 950

IDU 910:
The FAN board whose functional
version is TNC1 is fixedly inserted in
slot 6.
Accesses one +12 V power supply for
driving three fans, each of which
consumes 6 W power.
IDU 950:
The FAN board whose functional version
is TND1 is fixedly inserted in slot 11.
Accesses two +12 V power supplies for
driving six fans, each of which consumes
6 W power.
Page 85

Front Panel of the FAN
ESD wrist
strap jack
42CM

Indicator Color State Description 86.2CM

Green The fan is running normally.
Red The fan is faulty.
FAN indicator
The fan is not powered on or is
Off
not installed.

CRIT
The subrack has a critical
indicator Red
alarm.

MAJ indicator The subrack has a major
Orange
alarm.
MIN alarm The subrack has a minor
Yellow
alarm.

Page 86

Summary
 This course provides the following information:
 Network position of the RTN 900 V100R002
 System architecture and hardware structure of the RTN 900
V100R002
 Boards on the OptiX RTN 900 V100R002
 TDM system control, cross-connect, and timing board

:CSTA/CST

Hybrid system control, cross-connect, and timing board:
CSHA/CSHB/CSHC/CSH
 IF board: IF1 、 IFU2 、 IFX2
 Service interface board :
EM6T/EM6F 、 SL1D 、 SP3S/SP3D
 Auxiliary and management interface board : AUX
 Power supply board and fan board : PIU 、 FAN

Page 87

Appendix——Weight and Power Consumption of Boards
Boards Weight (kg) Power consumption (W)
CSTA 1.079 kg ＜ 19W
CSHA 1.110 kg ＜ 19W
CSHB 1.158 kg ＜ 22W
CSHC 1.129 kg ＜ 20W
CST 0.720 kg ＜ 21W
CSH 0.740 kg ＜ 25W
IF1 0.720 kg ＜ 8W
IFU2 0.790 kg ＜ 22W
IFX2 0.796 kg ＜ 24W
EM6T/EM6F 0.370 kg / 0.382kg ＜ 12W
SL1D 0.296 kg ＜ 3W
SP3S 0.544 kg ＜ 5W
SP3D 0.644 kg ＜ 10W
AUX 0.270 kg ＜ 2.1W
PIU 0.120 kg ＜ 0.5W
FAN 0.200kg ＜ 2.3W (room temperature)
＜ 17W (high temperature)

Page 88

02 opti x rtn 900 v100r002 system hardware-20100223-a

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