NEC PASOLINK+ - Page 21

PASOLINK
+
155 MB 1+0/1+1 SYSTEM MTD-PL-028/141005
- 16 -
Figure 4-2. PASOLINK
+
- Hot-standby System Block Diagram
ANT
ODU(No.1 CH)
ANT
150M INTFC : Electrical STM-1 Interface ANT : Antenna CTRL : Control DC-DC CONV : DC-DC Converter IDU : MDP-150MB5T-2-
LO : Local Oscillator MODEM : Modulator-Demodulator OPT INTFC : Optical STM-1 Interface ODU : TRP-( )G150MB5-2- OW : Orderwire
RF CKT : Radio Frequency Circuit STM-1 : Synchronous Transport Module-1 WS INTFC : Wayside Interface (optional)
*1 WS INTFC or LAN CARD is used exclusively. *2 150M INTFC/OPT INTFC or 10/100Base-T(X) INTFC is used exclusively.
DC-DC
CONV
RF
CKT
CTRL LO
OW IN/OUT
ODU(No.1 CH)
150M INTFC/
OPT INTFC
DC-DC
CONV
RF
CKT
CTRL LO
OW IN/OUT
ODU(No.2 CH)
MODEM
DC-DC
CONV
ODU
INTFC
WS INTFC
CTRL
STM-1
IN/OUT
PNMS
LCT
WS IN/
OUT
MD UNIT
MODEM
DC-DC
CONV
ODU
INTFC
MD UNIT SW UNIT
IDU
LAN CARD
10Base-T
*1 *1
10/100Base-T(X)
2 x
10/100Base-T(X)
*2
*2
DC-DC
CONV
RF
CKT
CTRLLO
OW IN/OUT
150M INTFC/
OPT INTFC
DC-DC
CONV
RF
CKT
CTRLLO
OW IN/OUT
ODU(No.2 CH)
MODEM
DC-DC
CONV
ODU
INTFC
WS INTFC
CTRL
STM-1
IN/OUT
PNMS LCT
WS IN/
OUT
MD UNIT
MODEM
DC-DC
CONV
ODU
INTFC
MD UNITSW UNIT
IDU
LAN CARD10Base-T
*1
*1
10/100 Base-T
*2
*2
2 x
10/100Base-T(X)
10/100Base-T(X)