Pasolink+ XPIC Training Course.GENERAL DESCRIPTIONCHAPTER 01
INTRODUCTIONNEC's Pasolink+ XPIC can operates in frequency bands
from (6 38) GHZ.
NECs Pasolink+ XPIC supports the following transmission
SDH 2 x STM-1 optical / electrical interfaces.
Optional 2 10/100 Base-T(X) LAN signal.
NECs Pasolink+ XPIC uses 128 QAM + RS modulation technique.
The following table shows a summary comparison for Pasolink
EQUIPEMENT FEATURES (1/8)ADVANCED TECHNOLOGIES AND SUPERB
PERFORMANCE MMIC, HIC AND VLSI Single chip modulator/ demodulator
(Full digital) Square-root Nyquist Roll-off shaping filter High
reliability Low power consumptionHIGH TRANSMISSION CAPACITY2 x 155
MB transmission capacity is realized by XPIC (Cross Polarization
Interference Canceller) technology. MITIGATION OF
INTERFERENCEPossible interference caused by co-channel transmission
is mitigated with orthogonal polarized input channel and the XPIC
(Cross Polarization Interference Canceller) device. HIGH SYSTEM
GAIN High system gain achieved by using 128 QAM + RS modulation
EQUIPEMENT FEATURES (2/8)EASY AND QUICK INSTALLATION Very
compact and light Only one coaxial cable interconnection Different
mounting methods for IDU, ODU and Antenna Easy antenna pointing
adjustments (RX level monitor point in ODU)SYSTEM FLEXIBILITY Hot
Standby/ Space Diversity / Twin Path systems are available with
Hitless switch. Common IDU for different RF frequencies
(6/7/8/11/13/15/18/23/26//38 GHz) (1 + 0 ) unprotected or ( 1+ 1)
protected.FREQUENCY AGILITY AND EASY TUNINGField tunable
local-oscillator (Synthesizer).RF point frequency can be changed in
the field, (except 6 8 GHz).Frequency Tunable without changing RF
FIL on Sub-band basis (except 6 8 GHz).
EQUIPEMENT FEATURES (3/8)TX POWER CONTROL Variable : 0 to 20 dB
, 1 dB step variable. Automatic Transmit Power Control (ATPC) or
Manual Transmit Power Control (MTPC)EASY MAINTENANCE FACILITIES
Full front panel access for all cabling and user interfaces Near
End and Far End Base-band Loop back facilities Remote monitoring of
ODU operating condition from IDU OW calling facility between IDU -
ODU, IDU IDU and ODU-ODU Local monitor and maintenance using Local
Craft Terminal (LCT) Continuous RSL monitoring using Local Craft
Terminal (LCT) Pre-settable BER alarm point. IF Loop back
EQUIPEMENT FEATURES (4/8)MULTIPLE SERVICE CHANNELS Engineering
Order Wire (OW) : IDU- IDU (Standard) IDU - ODU (In case using
PASOLINK MONITOR (Option)) ODU-ODU (In case using PASOLINK MONITOR
(Option))Service channels : - Digital Port : 64 kbps Sync., 2 ch
standard. VF Port : 0.3 to 3.4 kHz (1 ch) 600 ohms, 2 ch standard.
10 Base-T : 1 ch (optional; exclusive use in other service
channels). Cluster Alarm : 2 ch (optional; auxiliary alarm
transmission). The system configuration is easily updated :-1 x
STM-1 (1+0) to 2 x STM-1 (1+0).1 x STM-1 (1+0) to 2 x STM-1 (1+1
with hot standby).1 x STM-1 (1+0) to 2 x STM-1 (1+1 with twin
path). COMMON PLATFORM ARCHITECURE.
EQUIPEMENT FEATURES (5/8) Complies with ETS 300385ELECTRO
MAGNETIC COMPATIBILITY (EMC)CONFORMITY WITH ANSI, ITU-R, ITU-T AND
ETSI STANDARDSNEC Quality control is carefully monitored in every
manufacturing step, such as parts selection, assembly, adjustment
NEC Quality Controls employing Zero Defect and Value Engineering
Techniques extend to every aspect of production and inspection in
accordance with stringent Total Quality Control
programs.RELIABILITY AND QUALITY User friendly operation as
maintenance terminal.PASOLINK NETWORK MANAGEMENT TERMINAL (PNMT)
(OPTION) Link oriented monitor and control. Uses Windows 2000/XP
which enable use of mobile PC
EQUIPEMENT FEATURES (6/8)PASOLINK NETWORK MANAGEMENT SYSTEM
(PNMS) (OPTION) User friendly operation Uses Windows 2000/XP to
ensure easy operation and maintainability Remote access and control
of any PASOLINK Terminal in the network Link oriented monitor and
control ( both side of a microwave link) Multi level security Event
Logging ITU-T G.826 Performance Monitor (Table /graph presentation)
Real-time monitor of Network Elements (NE) SNMP Interface
EQUIPEMENT FEATURES (7/8)Flexible ODU Mounting
Configurations.Suitable configuration can be selected from various
ODU mounting styles.
Direct Mounting on Antenna.
Remote Mounting with Waveguide or Coaxial Cable.11-38 GHz Remote
Mount Dual Pole System6-8 GHz Remote Mount Dual Pole System
EQUIPEMENT FEATURES (8/8)Flexible ODU Mounting Configurations
(Cont.)11-38 GHz Direct Mount Dual Pole System
System CompositionsThe system consists of the following :-
MDP-150MB7T-( )A Modulator-Demodulator (Indoor Unit (IDU)).
TRP-( )G-1AA Transmitter-Receiver (Outdoor Unit (ODU)).
Orthogonal Mode Transducer (OMT) (for antenna direct
Hybrid for 1+1 one antenna configurations.
Antenna for required MW band.
RF Cables for ODU Remote mounting.
IDU Composition for 1+0
IDU Composition for 1+1
IDU Performance Characteristics (1/3)
IDU Performance Characteristics (2/3)
IDU Performance Characteristics (Cont.) (3/3)
ODU Indication Label
ODU Composition for (6/7/8 GHz)
ODU Composition for (11/13/15 GHz)
ODU Composition for (18/23/26/38 GHz)
ODU Performance Characteristics.
OMT (Ortho Mode Transducer). (1/3)OMT TransducerNEC has
developed the Ortho-Mode Transducer (OMT) over the full range of
microwave frequencies for Wave Guide interface of PASOLINK Series
digital microwave radio point-to point fixed wireless systems. The
OMT comprises the Ortho-Mode transducer, antenna interface and
radio mounting interfaces.
The two independent RF signals received by dual polarized
antenna are separated and sent to two outdoor units (ODUs) through
the OMT for 2+0 systems.
The OMT enables the dual polarization feature to double the
transmission capacity for the PASOLINK system.
The NEC OMT has a Wave Guide connection type for 13-38GHz Bands,
which is suited for RFS Antenna and all NEC ODUs.Features
Direct mount integration with smart design for PASOLINK
High XPD (cross polar discrimination ratio)
OMT (Ortho-Mode Transducer) (Cont.) (2/3)OMT Physical
OMT (Ortho-Mode Transducer) (Cont.) (3/3)OMT Specifications
Hybrid Combiner / Divider. (1/4)6/7/8 GHz Hybrid13 38 GHz
HybridNEC has developed the Hybrid Combiner/Divider over the full
range of microwave frequencies for the PASOLINK Series digital
microwave radio point-to-point fixed wireless systems.
This Hybrid Combiner/Divider comprises a directional coupler,
antenna interface, radio mounting interfaces and polarizer.
The RF signal power received by the single polarized antenna is
equally distributed and sent to two outdoor units through the
Hybrid Combiner/Divider for 1+1 protected systems.
There are two types of NEC Hybrid Combiner/Divider, one is a
coaxial cable connection type for 6/7/8GHz Bands and the other is
WG connection type for 13-38GHz Bands.
NEC Hybrid Combiner/Divider is suited for Andrew, RFS, or PAL
Antenna, and all NEC ODUs.
Hybrid Combiner / Divider. (Cont.) (2/4)7/8 GHz Hybrid Physical
Hybrid Combiner / Divider. (Cont.) (3/4)13 - 38 GHz Hybrid
Hybrid Combiner / Divider. (Cont.) (4/4)13 - 38 GHz Hybrid
Pasolink Antenna menu and performance for direct mount types.
Note 1: 18-38GHz antennas are provided with standard waveguide
flange (PBR) and PASOLINK original interface.(13-15GHz antennas are
provided with PASOLINK original interface and without standard
Note 2: In case of 7,8,13 and 15GHz remote mount configuration,
please dont use this table.(Please refer to the standard catalog of
the antenna supplier).
Note 3: This table shows typical values for reference.
Note 4: In case of Dual Pole Direct Mount Antenna System, *
marked Diameters are available.
General Performance Characteristics. (1/2)
General Performance Characteristics (Cont.) (2/2)
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