OptiX RTN 600
Product Description
Commercial in Confidence
Page 10 of 44
Table 3-1
Functional modules
Functional
Module
Corresponding
Component
Function Description
Service interface
unit
SL1, SD1, SLE, SDE,
PH1, PO1
Accesses E1/STM-1o/STM-1e signals.
Cross-connect
unit
PXC (XC)
Cross-connects and grooms services.
Supports 1+1 standby.
IF unit
IF1A (IF), IF1B (IF)
Converts signals between baseband service
signals and IF analog signals.
Supports hitless switching for 1+1 configuration.
Supports FEC.
Supports ATPC.
Control unit
SCC (SCC)
System communications and control.
System configuration and management.
Collects alarms and monitors performance.
Clock unit
PXC (CLK)
Traces the clock source signal and provides
various clock signals for the system.
Auxiliary
interface unit
SCC (EOW)
Provides the orderwire interface.
Provides the asynchronous data interface.
Provides the external alarm input/output
interface.
Fan and power
unit
PXC (PWR), SCC
(PWR), IF1A (PWR),
IF1B (PWR), FAN
Provides -48 V/+3.3 V power for the IDU.
Supports the backup function of the input power
supply and the internal power supply.
Provides -48 V power for the ODU.
Provides fans for the system.
ODU
ODU
Converts signals between IF signals and RF
analog signals.
Provides the O&M channel to the IDU.
3.2 Hardware Structure
The OptiX RTN 600 hardware consists of IDU and ODU. The ODU is connected to the
IDU through a coaxial cable. The cable is used to transmit IF signals, O&M signals,
and -48 V DC power.
3.2.1 IDU
The IDU is the indoor unit of an OptiX RTN 600 system. It accesses services, and
performs multiplexing/demultiplexing and IF processing of the services.
The IDU is designed with slots. You can install different types of boards into the slots
to realize different functions.