NEC Mcu 5000a Multipoint Control Unit Equipment Manual

							NECA 340-414-100 Revision 2.0Page 79
MCU 5000A Multipoint Control Unit General Description Manual
Figure 7-9:   Loopback Points
RELAY IPAF MTSC
MTSC MTSCMTSC
PN
CHECKER
PN
GENERATOR
POINT A
POINT B
POINT C POINT D POINT E
POINT F1.5M LIF UNIT EC H221 MUX UNIT
V SW/LSD UNIT
HSCX
A CODEC POINT H POINT G
RELAY MTSC
MTSC MTSCMTSC
PN
CHECKER
PN
GENERATOR
POINT A
POINT B
POINT C POINT D POINT FRS-422 LIF UNIT EC H221 MUX UNIT
V SW/LSD UNIT
HSCX
A CODEC POINT H POINT G
(a)  1.5M LIF Loopback Points
(b)  RS-422 LIF Loopback Points 
						

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General Description Manual MCU 5000A Multipoint Control Unit
7.44
The loopback point setting, the loopback test and loopback release  
mentioned above are conducted by the execution of the MCU console commands.  
To conduct loopback  test, it is necessary to set.  However, the console loopback 
test does not require the loopback point setting because it automatically sets 
loopback points.  
G: Self Diagnostic 
Function7.45
When power switch is turn-on, the self-diagnostic for the following 
hardware is performed.
• RAM test:  Read/write test of RAM area is executed.  If any error is 
detected, the program activity is stopped.
• ROM test:  The matching of the check sum and programed value is 
verified.  If any error detected, the program activity is stopped.
• Hardware initializing test:  When initializing the hardware with program, 
the normal initializing operation is verified.  If any error is detected, the 
critical error cause to stop the program activity, the minor error indicates 
the alarm on the console.
• Unit installation test:  Unit installation state is verified.  When any 
necessary unit is not installed, the alarm is indicated on the console.
• System parameter back-up test:  CRC in the system parameter area is 
verified.  When any error is recognized, and then the program activity is 
stopped. 
						

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MCU 5000A Multipoint Control Unit General Description Manual
8:  MCU CONSOLE
8.01
The  MCU console provides the functions of the system parameter and 
teleconference setting, the memory card control, and the maintenance with MCU  
console as equipment controller.  The MCU console provides operator 
management/video switch control which is operated by teleconference terminal 
TC5000 with optional software.  Refer to NECA 340-414-300.
A:  Console 8.02
The MCU console consists personal computer, which is connectable to 
the RS-232C serial interface. The MCU console provides various functions by 
entering console command.
B:  Console Command 8.03
Table 8-1 lists all of  the console commands provided.
Table 8-1: Console Command List (1 of 4)
COMMAND CATEGORY COMMAND FUNCTION
System Setting MonitorCGPR Creates auto start command generator program.
LCKS Displays synchronization clock source for line. 
LCNQ Displays type of LIF unit mounted and its bit rate.
LECR Resets error counter for physical line.
LERQ Displays number of error occurrence on physical line.
LSTQ Displays each physical line status.
RCGP Retrieves (reads) and displays auto start command generator program.
Switching ControlBCON Makes both direction connections between two terminals.
BDSC Disconnects both direction connections between two terminals.
LCONConnects one transmit terminal to specified receive terminals and simultaneously 
causes transmit terminal to monitor (receive) picture sent from one specified 
terminal.
LDSC Disconnects multiple connections.
SDSC Disconnects all connections in the system.
RCNN Retrieves and displays connection status on all transmission lines in use.
UCON Broadcasts one picture for all specified terminals.
UDSC Disconnects broadcast connection.
Multipoint/Lecture Connection 
ControlECON Makes multipoint connections for education mode.
EDSC Disconnects multipoint connections for education mode. 
MCNR Sets local terminal to waiting status for cascade connection by master MCU.
MCON Makes multipoint connections.
MDCR Releases cascade connection status or cascade connection waiting status.
MDSC Disconnects multipoint connections.
RATT Displays current status of multi-connected terminals in the system.
RRNMRetrieves and displays logic line numbers, logic room numbers, and port numbers 
for multi-connected terminals. 
						

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General Description Manual MCU 5000A Multipoint Control Unit
Table 8-1:  Console Command List (2 of 4)
COMMAND CATEGORY COMMAND FUNCTION
Multipoint Teleconference 
ControlALRM Sends or stops alarm tone to all teleconference terminals (rooms).
COPRAssigns or cancels operator privilege of specified teleconference room 
(terminal).
CSPR Broadcasts picture of specified terminal.
CRPR Connects or disconnects between transmit and receive terminals.
CVCR Controls voice (talker) detect function of specified terminal.
CMPRChanges monitor picture on display from broadcasting terminal to the picture 
from specified terminal.
CSRR Displays status concerning specified terminal.
CMSG Displays  message into the terminal taking part in  multipoint conference.
GRRC Sends global indication to all MCU consoles.
EQUR Requests question/speech from specified lectured terminal to instructor terminal.
EQRCCancels request of question/speech from specified lectured terminal to instructor 
terminal.
ETLKLimits talk to one (specified) terminal with in a multipoint teleconference 
session.
RCAPRetrieves and displays capability parameter values of specified multi-connected 
terminal. 
RMOD Retrieves and displays transmit modes of specified terminal. 
STPR Broadcasts still pictures of specified terminal.
Multipoint Teleconference 
Terminal ControlSNAM Registers or deletes  area name of multi-connected terminal.
RNAM Retrieves and displays area name of multi-connected terminal.
Memory Card ControlCPMC Copies data from source memory card to target memory card.
RDIR Retrieves and displays  file directory in  memory card.
RMCS Displays status and type of  memory card.
RMCV Displays software version of memory card.
H.243 Multipoint Connection 
ControlRCON Makes multipoint connections (H.243 mode)
RDSC Disconnects multipoint connections. (H.243 mode)
RADD Adds multipoint connections to RCON conference.
RDRP Drops multipoint connections from RCON conference.
RASNIndicates relation between conference room number and terminal number 
assigned by RCON.
RRATAcquire conference participation of terminal for specific conference room group 
RCON.
RCNQ Indicate connection situation of multipoint conference, setup by RCON. 
						

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MCU 5000A Multipoint Control Unit General Description Manual
Table 8-1:  
Console Command List (3 of 4) 
ISDN ControlNCRNSend a call of ISDN line.  In case of 2xB, two lines are connected at one time for 
the call.  In case of 2xB and multipoint (when H.242 on) second call will be 
processed after the first H.242 negotiation sequence.
NDSC Disconnect ISDN line.  In case of 2xB, disconnect twice.
NCICWhen reception report is manual reception received by NINC indication, specify 
whether to accept this reception.
NIWT Set up to wait for reception to receive wait for ISDN line.
NIWQ Indicate the logical line in ready receive status line numbers (none a, s, c).
NIWR Release reception wait.
INET ON/OFF indication report related to ISDN.
NSTQ Display transmission status of ISDN line (complete the digit).
NLGC Delete communicate history.
NPDS Register speed dial.
NPDRDisplay register contents of speed dial (complete the digit.  When parameter was 
omitted, display all registered contents.
NDSS Register local address.
NDSRDisplay the registered local number (complete the digit).  When omitted, display 
all registered lines.
NLGQDisplay the maximum of 100 transmission history (complete the digit).  When 
omitted, indicate all history.  When the specified number exceeds the number of 
accumulate, display all history.
System Setting and MaintenanceISPR Initialize system parameter
RCLK Read system clock
RLCS Remote loop command send
RROM Read ROM version
RRST Request system reset
RSPR Read system parameter
RTLP Release loopback test
SSPR Set system parameter
STLP Set for test of loopback
SVSP Save system parameter
TLOP Test of loopback
WCLK Write system clock 
						

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General Description Manual MCU 5000A Multipoint Control Unit
Table 8-1:  Console Command List (4 of 4)
COMMAND CATEGORY COMMAND FUNCTION
Global IndicationCJNIIndicates notifies  that teleconference terminal is connected to the control terminal 
unit
CMPI Indicates notifies  that  the picture of the broadcasting terminal has been changed
COPI Indicates modifies the assignment or cancellation of the operator privilege
CRPI Indicates notifies one transmitting terminal and one receive terminal
CSPI Indicates notifies that a terminal is broadcasting
CSTI Indicates notifies that the status of a terminal is changed
CVCI Indicates notifies that a terminal is detecting a voice
EQCI Indicates notifies  that the question request
EQRI Indicates notifies that a lectured terminal is asking
ERRI Indicates notifies that the status
ETKI Indicates notifies  that the talk the specified terminal is permitted
MCNI Indicates notifies that cascade connection is established
MDCI Indicates notifies that cascade connection is disconnected
RLCI Indicates notifies that a terminal requests 
STEI Indicates notifies that the still picture of the terminal is broadcasting 
						

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MCU 5000A Multipoint Control Unit General Description Manual
9:  SYSTEM PARAMETER
A:  Application 9.01
The MCU 5000A provides the system parameters in accordance with 
various operation of the teleconference system.  The system can be customized 
with user requirement condition.  Refer to 
NECA 340-414-220.
B:  System Parameter 9.02
The main system parameter and the descriptions are shown in Table 9-1.
Table 9-1: System Parameter Setting
NO. SYSTEM PARAMETER FUNCTION
1Line rate Sets the connecting line bit rate.
2Frame Format Sets the Frame Format used in the connecting line.  (T1 only)
3Line Code Sets the Line Code used in the connecting line.  (T1 only)
4RAI type Sets the receiving RAI type.  (T1 only)
5Clock Source Sets the Clock Source (line/internal)
6Line Equalizer  Sets the Line Equalizer with port unit.  (T1 only)
7Video signal switching timer Sets the standard level as the communication rate.
8Transfer Rate Capability Sets the transfer rate as the communication rate.
9Network Classification Capability Sets the network controlled or not controlled
10Audio Mode Sets the connected terminal voice capability.
11Network Classification Mode Sets the network controlled or not controlled 
						

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General Description Manual MCU 5000A Multipoint Control Unit
This page is for your notes. 
						

							NECA 340-414-210
ISSUE 2
DOI-G05184
PART OF STOCK # 0293922
INSTALLATION MANUAL
SEPTEMBER, 1998
NEC America, Inc.
MCU 5000A MULTIPOINT 
CONTROL UNIT 
						

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NEC America, Inc. has prepared this document for use by its em-
ployees and customers. The information contained herein is the
property of NEC America, Inc. and shall not be reproduced without
prior written approval from NEC America, Inc.  
Copyright 1998
NEC America, Inc.
Printed in USA