NEC Mcu 5000a Multipoint Control Unit Equipment Manual
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NECA 340-4 14- 10 0 Revisio n 2.0 Page 49 MCU 5000A Multipoint Control U nit General Description Manual J: VDSW Unit General
Page 50NECA 340-414-100 Revision 2.0 General Description Manual MCU 5000A Multipoint Control Unit Figure 4-15: Block Diagram of VDSW Unit S/P SW P/SHSCX INF HSCX HSCX HSCX HSCX SEL SELS/P SW P/S PN PTN GEN/CHK 88 8 8 8 88 8 8 8 8 88 8 88 8CPU BUS MLP R MLP S LSD R LSD S MD R MD SSW
NECA 340-414-100 Revision 2.0Page 51 MCU 5000A Multipoint Control Unit General Description Manual 5: SOFTWARE 5.01 The RX136 operating system of the control real-time/multitask OS is used in the MCU 5000A. The RX136 OS conforms to the ITRON specifications. 5.02 The multitask operation is established that each control task is executed per each function, and also each driver task is executed per each hardware. The individual task is independently separated under that OS. Each task operation switching is caused by trigger of the transported messages with priority. The program is stored in the memory card. For software version up for the function upgrade, the new memory card replacement is required only. A: Task Description 5.03 Fig. 5-1 shows the task diagram for the MCU 5000A, and Fig. 5-2 shows the MCU 5000A Memory Mapping. The following task functions are available. Loader (LO) • The code data in the memory card is loaded to the equipment memory • Every task is started up according to the start table file • Transference of task processing to CM Timer (TM) • Time-out mail issue for task request Memory Card Driver (MD) • File read-out/write-in from memory card • Data read-out/write-in from memory card • File system management Conference Management (CM) • Initialization of every task • Line exchange setting • Multipoint connection setting • Teleconference group management • Command analyses from CC • Pass-through of teleconference control indication • Pass-through of teleconference control command from CC • Site name management • Encryption key management • Loop test management • Slave console control
Page 52NECA 340-414-100 Revision 2.0 General Description Manual MCU 5000A Multipoint Control Unit Console Control (CC) • Internal formal conversion of console command/indication • Exclusive control of CD1 to CD3 • Teleconference control indication ON/OFF (each console) • Execution of command terminated within CC • Command send/receive in cascade-connection mode • Slave console control • Console through-pass control • Overlay of program file in CPMC Console Driver (CD1 to CD3) • RS-232C port input/output [per one line including carriage return (CR)] Command Generator • Automatic execution command transference Real-Time Clock Management (RM) • Real-time clock setting/read-out Line Management (LM) • Line state management • Line exchange setting management • Conversion of line setting (disconnection) parameter AMI Line Control (LCA) RS-422 Line Control (LCR) ISDN Line Control (LCI) FIFO Driver (FH) • Parameter data transportation to PIIFC • PIIFC task start-up • Call control Line Exchange (LX) • Line Exchange setting (MTSC) • Line switching management
NECA 340-414-100 Revision 2.0Page 53 MCU 5000A Multipoint Control Unit General Description Manual Picture Switching (PS) • Picture Switching of conference room • HSD switching Voice Input/Output Control (VC) • Audible (voice) teleconference group setting • Voice detection • Audible alert sending Multipoint Control (TCA, TCB) • Teleconference management • Video signal switching control by voice (talker) signal • Video signal switching control from terminal request • Operator management • Voice detection ON/OFF • Site name data transporting • BAS command control • Still picture transporting control • Cascade-connection control Electrical Whiteboard Control for MCU • Distribution of electrical whiteboard data • Management of electrical whiteboard data sending privilege • Distribution of camera data LAP-B Drive (LD1 to LD8) • Low-speed data sending/receiving • link connection management • Error re-sending • Distribution of MCU control data/electrical board/cascade control data BAS Driver (BD1 to BD8) • MUX unit control • H.221state management • H.242 control
Page 54NECA 340-414-100 Revision 2.0 General Description Manual MCU 5000A Multipoint Control Unit Figure 5-1: MCU 5000A Task Diagram LM CM LCI FHn114 BCx18 BDn18 LDn18 TCx VC PS RM TM MD LO CG CDn13 CC LX LCXLCA OS (RX-136) TCx: TCA, TCB BCx: BCA, BCB DCx: CD1~CD3 LDn: LD1~LD8 BDn: BD1~BD8 FHn: FH1~FH14
NECA 340-414-100 Revision 2.0Page 55 MCU 5000A Multipoint Control Unit General Description Manual Figure 5-2: MCU 5000A Memory Mapping MEMORY CARD COPY AREA NOT USED NOT USED BCB BCA TCB TCA PS LX LCI LCR LCA LM RM CG CC CM BANK 14 BANK 13 BANK 12 BANK 11 BANK 10 BANK 9 BANK 8 BANK 7 BANK 6 BANK 5 BANK 4 BANK 3 BANK 2 BANK 1400000H 300000H 2E0000H 2C0000H 2A0000H 280000H 260000H 240000H 220000H 200000H 1E0000H 1C0000H 1A0000H 180000H 160000H 140000H 120000H 100000H 128 KBYTE ROM MEMORY CARD BANK SRAM BANK WINDOW TASK AREA 100000H 0C0000H 0B0000H 080000H 060000H 000000H
Page 56NECA 340-414-100 Revision 2.0 General Description Manual MCU 5000A Multipoint Control Unit This page is for your notes.
NECA 340-414-100 Revision 2.0Page 57 MCU 5000A Multipoint Control Unit General Description Manual 6: SPECIFICATIONS A: Physical Specification6.01 The MCU 5000A is installed in the 19-inch subrack. Fig. 6-1 shows the outline of the MCU 5000A. The rear view of MCU 5000A is shown in Fig. 6-2. The installing units layout in the subrack is illustrated in Fig. 6-3. The MCU 5000A unit component is listed in Ta b l e 2 - 1 in paragraph 2.01. B: Electrical Specification6.02 The electrical specifications of MCU 5000A are shown in Table 6-1. Figure 6-1: MCU 5000A Outline MULTIPOINT CONTROL UNIT TOP VIEWREAR VIEW FRONT VIEWSIDE VIEW 14 in 15.7 in (39.88 cm)19 in (48.26 cm) NEC MCU (35.56 cm)
Page 58NECA 340-414-100 Revision 2.0 General Description Manual MCU 5000A Multipoint Control Unit Figure 6-2: Detailed Rear View of MCU 5000A RS-232CHSD IFLIF CH1 CH5CH1 CH13CH9 CH5 CH1 CH2 CH6CH1CH14 CH10CH6 CH2 CH3CH7 CH3 +++ FGSGCH15CH11 CH7 CH3 CH4 CH8 CH4CH16 CH12 CH8CH4 * RC-232C CONNECTORAC P OW E REARTH TERMINALHSD IF CONNECTORLIF CONNECTORNAME PLATE LIST OF CONNECTORS CONNECTOR NAME CONNECTOR PIN QUANITY LIF CH1 - CH16 15 pins HSD IF CH1 - CH8 15 pins RS-232C CH1 - CH4 25 pins * : THE CH4 AT RS-232C PORT IS FOR FACTORY USE.