Mantenimiento de tx pasolink
CONTENTS
CONTENTS
TITLE
1. 2. 3. 4. 5. 5.1 5.2 5.2.1 5.2.2 5.3 5.4
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GENERAL ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• SYSTEM CONFIGURATION ••••••••••••••••••••••••••••••••••••••
SYSTEM PERFORMANCE •••••••••••••••••••••••••••••••••••••••• 3-1 RADIO FREQUENCY ASSIGNMENT ••••••••••••••••••••••••••• 4-1 ALARM ANDCONTROL••••••••••••••••••••••••••••••••••••••••••• Alarm Indication and Reporting ••••••••••••••••••••••••••••• 5-1 5-1
Protection Switching for Main Traffic •••••••••••••••••••••• 5-2 Transmit Switching ••••••••••••••••••••••••••••••••••••••••••••• 5-2 Receive Switching••••••••••••••••••••••••••••••••••••••••••••••• 5-4
Protection Switching for WS, ASC and DSC••••••••••••• 5-4 Network Management (Optional)•••••••••••••••••••••••••••• 5-4
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CONTENTS
ROI-S03498
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ROI-S03498
GENERAL SYSTEM DESCRIPTION
1. GENERAL
This section provides information on the NEC New Pasolink 7/8/13/15/ 18/23/26/38 GHz 4MB (2 MB × 2)/8 MB (8 MB × 1, 2 MB × 4)/17 MB (2 MB × 8)/34 MB (34 MB × 1, 2 MB × 16) point-to-point digital radio system. The ( ) GHz ( )MB digital microwave radio system isconfigured in Hot-standby (HS) system. Included herein are system configuration, system performance, RF channel assignment, and alarm and control.
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GENERAL SYSTEM DESCRIPTION
ROI-S03498
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ROI-S03498
SYSTEM CONFIGURATION
2. SYSTEM CONFIGURATION
This system consists of TRP-[ ]G-[ ] Transmitter-Receiver (Outdoor Unit(ODU)) and MDP-[ ]MB-[ ] Modulator-Demodulator (Indoor Unit (IDU)) and Hybrid (see Fig. 2-1). The [ ]GHz 4 MB (2 MB × 2) digital radio system is used to communicate two data streams at 2.048 Mbps (equivalent to 30 voice channels) between two stations. The [ ]GHz 8 MB digital radio system is used to communicate one data stream at 8.448 Mbps (equivalent to 120 voice channels) or four data streams at2.048 Mbps (equivalent to 30 voice channels) between two stations. The [ ]GHz 17 MB (2 MB × 8) digital radio system is used to communicate eight data streams at 2.048 Mbps (equivalent to 30 voice channels) between two stations. The [ ]GHz 34 MB digital radio system is used to communicate one data stream at 34.368 Mbps (equivalent to 480 voice channels) or sixteen (16) data streams at 2.048 Mbps(equivalent to 30 voice channels) between two stations. A system block diagrams of 2 MB × 2, 2 MB × 4, 2 MB × 8 and 2 MB × 16 systems are shown in Fig. 2-2, and that of 8 MB × 1 and 34 MB × 1 systems are shown in Fig. 2-3.
PASOLINK
IF FG
RX LEV MON
7/8GHz BAND ODU
13-38GHz BAND ODU
Fig. 2-1 Outline of ODU and IDU (1/3)
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SYSTEM CONFIGURATION
ROI-S03498
IF IN/OUT MAINTODU IDU RESET PWR FUSE (7.5A) ON − LA PORT TRAFFIC IN TRAFFIC OUT ERR MON EOW CALL RESET OPR SEL No.1 AUTO No.2 TRAFFIC IN/OUT 120Ω IF IN/OUT ALM AUX ALM OW/DSC/ASC NMS/RA LA PORT 1 2 OPR ALM RX OFF LINE IN
PASOLINK
+
PASOLINK
CH1
CH2
CH3
CH4
CH1
CH2
CH3
CH4
TX RX TX
FG
PASOLINK MAINT RESET PWR ODU IDU
FUSE (7.5A) ON − LA PORT OFF LINE IN +
2 MB × 2/2MB × 4/8 MB x 1 FIXED BIT RATE SYSTEM/ 2 MB × 2/2 MB × 4 BIT RATE FREE SYSTEM
IF IN/OUT MAINT ODU IDU RESET PWR FUSE (7.5A) ON − LA PORT TRAFFIC IN TRAFFIC OUT ERR MON EOW CALL OFF RESET OPR SEL No.1 AUTO No.2 1 2 OPR ALM RX FG LINE IN +
PASOLINK
PASOLINK
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
TX RX TX
TRAFFICIN/OUT 120Ω IF IN/OUT
ALM
AUX ALM
OW/DSC/ASC
NMS/RA
LA PORT
MAINT ODU IDU RESET PWR FUSE (7.5A) ON − LA PORT OFF LINE IN +
PASOLINK
2 MB × 8 FIXED BIT RATE SYSTEM/2MB × 2/4/8 BIT RATE FREE SYSTEM
IF IN/OUT
MAINT RESET PWR ODU IDU FUSE (7.5A) ON − LA PORT TRAFFIC IN WS IN ERR MON OFF LINE IN +
PASOLINK
PASOLINK...
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