NEC Mcu 5000a Multipoint Control Unit Equipment Manual

							NECA 340-414-220 Revision 2.0 Page 1 of 4
MCU 5000A Multipoint Control Unit SPR-013
RS 422 LIF LINE RATE SETTING
LINE RELATED
SUMMARY:
Set the rate of communication to and from the connecting conference terminals.  
The rate can be set independently for each package of RS 422 LIF (LIF 1 to 4).  
However, it must be noted that conference terminals having different rates cannot 
be connected to each other, nor can be permitted to participle in the same 
conference.
STEP PROCEDURE 
Note:
The number of ports is set as the number of lines to be accommodated in a piece of RS 422 
LIF interface.
1Enter the following command.
SSPR__ n1 =  x1 __n2 = x2 __ … ni = xi … ¿
ni:
System parameter address30H 
to 37H
[1] Line interface numbers (LIF1 to 4) of RS 422 LIF corresponding to the addresses 
(hexadecimal values) on setting the rate of communication or the number of ports.
ADDRESS MEANING
30H  The line rate of LIF1.
32H The line rate of LIF2.
34H  The line rate of LIF3.
36H The line rate of LIF4.
31H  The number of ports for LIF1.
33H The number of ports for LIF2.
35H  The number of ports for LIF3.
37H The number of ports for LIF4. 
						

							Page 2 of 4 NECA 340-414-220 Revision 2.0
SPR-013 MCU 5000A Multipoint Control Unit
RS 422 LIF LINE RATE SETTING
LINE RELATED
STEP PROCEDURE 
x
i:
System parameter values See  below:
[1] System parameter values on setting the line rate for each address (30H, 32H, 34H, 36H).
The factory shipment value for the system parameter is 05H
.
SYSTEM PARAMETER LINE RATE SYSTEM PARAMETER LINE RATE
20H 56 kb/s 25H 336 kb/s 
30H 56 kb/s × 2 05H 384 kb/s
00H 64 kb/s 04H 512 kb/s
10H 64 kb/s × 2  06H 768 kb/s
21H 112 kb/s 09H 1152 kb/s
01H 128 kb/s 07H 1536 kb/s 
02H 192 kb/s 08H 1920 kb/s
03H 256 kb/s ------- -------
15H 384kb/s x 2 ------- -------
35H 336 kb/s x 2 ------- -------
[2] System parameter values on setting the number of ports for each address (31H, 33H, 
35H, 37H).  The factory shipment value for the system parameter applicable to the 
address is 04H
.  Refer to Tables 1 and 2. 
						

							NECA 340-414-220 Revision 2.0 Page 3 of 4
MCU 5000A Multipoint Control Unit SPR-013
RS 422 LIF LINE RATE SETTING
LINE RELATED
Table 1: Number of Ports for System Parameter
SYSTEM 
PARAMETERNUMBER OF 
PORTSSYSTEM 
PARAMETERNUMBER OF 
PORTSSYSTEM 
PARAMETERNUMBER OF 
PORTS
01H 1 21H 33 41H 65
02H 2 22H 34 42H 66
03H 3 23H 35 43H 67
04H 4 24H 36 44H 68
05H 5 25H 37 45H 69
06H 6 26H 38 46H 70
07H 7 27H 39 47H 71
08H 8 28H 40 48H 72
09H 9 29H 41 49H 73
0AH 10 2AH 42 4AH 74
0BH 11 2BH 43 4BH 75
0CH 12 2CH 44 4CH 76
0DH 13 2DH 45 4DH 77
0EH 14 2EH 46 4EH 78
0FH 15 2FH 47 4FH 79
10H 16 30H 48 50H 80
11H 17 31H 49 51H 81
12H 18 32H 50 52H 82
13H 19 33H 51 53H 83
14H 20 34H 52 54H 84
15H 21 35H 53 55H 85
16H 22 36H 54 56H 86
17H 23 37H 55 57H 87
18H 24 38H 56 58H 88
19H 25 39H 57 59H 89
1AH 26 3AH 58 5AH 90
1BH 27 3BH 59 5BH 91
1CH 28 3CH 60 5CH 92
1DH 29 3DH 61 5DH 93
1EH 30 3EH 62 5EH 94
1FH 31 3FH 63 5FH 95
20H 32 40H 64 60H 96 
						

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SPR-013 MCU 5000A Multipoint Control Unit
RS 422 LIF LINE RATE SETTING
LINE RELATED
STEP PROCEDURE 
Table 2: Maximum Number of Available Ports for Line Rate
LINE RATE NUMBER OF 
PORT (SYSTEM 
PARAMETER)LINE RATE NUMBER OF 
PORT (SYSTEM 
PARAMETER)LINE RATE NUMBER OF 
PORT (SYSTEM 
PARAMETER)
T1 (64 kb/s) 96 (60H) T1 (1152 kb/s) 4 (04H) T1 (448 kb/s) 12 (0CH)
T1 (128 kb/s) 48 (30H) T1 (1536 kb/s) 4 (04H) T1 (672 kb/s) 8 (08H)
T1 (192 kb/s) 32 (20H) T1 (56 kb/s) 96 (60H) T1 (1008 kb/s) 4 (04H)
T1 (256 kb/s) 24 (18H) T1 (112 kb/s) 48 (30H) T1 (1344 kb/s) 4 (04H)
T1 (384 kb/s) 16 (10H) T1 (168 kb/s) 32 (20H) RS422 4 (04H)
T1 (512 kb/s) 12 (0CH) T1 (224 kb/s) 24 (18H) RS422 (2×B) 2 (02H)
T1 (768 kb/s) 8 (08H) T1 (336 kb/s) 16 (10H) INS 48 (30H)
Valid range of values for system parameter are 00H to FFH.
2Verify that the normal response is displayed with “
OK”.
If YES
, go to Step 3
.
If NO
, go to Step 1
.
3 End of procedure. 
						

							NECA 340-414-220 Revision 2.0 Page 1 of 18
MCU 5000A Multipoint Control Unit SPR-014
RS 422 LIF CLOCK SOURCE SETTING
LINE RELATED
SUMMARY:
Specify the line from which to extract the line clock to be used inside the MCU 
5000A.  When set to “auto”, the line whose line signal is the first to turn normal 
will be specified as the clock source, but it will be replaced by the lowest-
numbered line currently in normal operation once the line acting as the clock 
source then ceases being normal.  When all the terminals are connected via 
network, use the MCU 5000A on this setting. 
STEP PROCEDURE 
Note:
If the physical line number is set with any value from “01H” to “10H”, the line will be fixed 
as the clock source.  In this case, care must be taken because an abnormal state of the line 
would lose the clock source and also cause the other lines to lose synchronization.  If the MCU 
5000A is connected to some terminals directly and to others via network, be sure to use the 
line connected via network as the clock source.  When set to “internal”, the intra-MCU crystal 
oscillator clock will supply the line clock.  If MCU 5000A must be connected directly to all 
the terminals without going through network, use the MCU 5000A with this “internal” setting 
on.
1 Enter the following command.
SSPR__ n1 =  x1 __n2 = x2 __ … ni = xi … ¿
ni:
System parameter address3BH 
to 3DH
[1] The addresses for setting the clock source and clock mask are as shown in the 
following table.
ADDRESS MEANING
3BH Clock source setting
3CH Clock source masking for lines 1 through 8
3DH Clock source masking for lines 9 through 16 
						

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SPR-014 MCU 5000A Multipoint Control Unit
RS 422 LIF CLOCK SOURCE SETTING
LINE RELATED
STEP PROCEDURE 
x
i:
System parameter values See below:
[1]
System parameter values on setting the clock source for the address 3BH.
The factory shipment value for the system parameter is 00H
.
SYSTEM PARAMETER LINE NUMBER SYSTEM PARAMETER LINE NUMBER
00HAutomatic (Automatic 
selection of line in its 
numerical order)09H 9
01H 1 0AH 10
02H 2 0BH 11
03H 3 0CH 12
04H 4 0DH 13
05H 5 0EH 14
06H 6 0FH 15
07H 7 10H 16
08H 8 80H Internal
[2] System parameter values on setting the clock source mask for the addresses 3CH and 
3DH.  The factory shipment value is 0000H
.
Valid only when setting the clock source, with the masked lines being so controlled 
as not to function as the clock source.
See tables on the following pages.
2 Verify that the normal response is displayed with “OK
”.
If YES
, go to Step 3
.
If NO
, go to Step 1
.
3 End of procedure. 
						

							NECA 340-414-220 Revision 2.0 Page 3 of 18
MCU 5000A Multipoint Control Unit SPR-014
RS 422 LIF CLOCK SOURCE SETTING
LINE RELATED
Note:  
Marking a line as masked omits it from automatic selection if 3B = 00.
SYSTEM 
PARAMETERLINE NUMBER TO BE MASKEDSYSTEM 
PARAMETERLINE NUMBER TO BE MASKED
0000H No lines masked 0201H Lines 1&10 are masked
0001H Line 1 is masked 0401H Lines 1&11 are masked
0002H Line 2 is masked 0801H Lines 1&12 are masked
0004H Line 3 is masked 1001H Lines 1&13 are masked
0008H Line 4 is masked 2001H Lines 1&14 are masked
0010H Line 5 is masked 4001H Lines 1&15 are masked
0020H Line 6 is masked 8001H Lines 1&16 are masked
0040H Line 7 is masked 0006H Lines 2&3 are masked
0080H Line 8 is masked 000AH Lines 2&4 are masked
0100H Line 9 is masked 0012H Lines 2&5 are masked
0200H Line 10 is masked 0022H Lines 2&6 are masked
0400H Line 11 is masked 0042H Lines 2&7 are masked
0800H Line 12 is masked 0082H Lines 2&8 are masked
1000H Line 13 is masked 0102H Lines 2&9 are masked
2000H Line 14 is masked 0202H Lines 2&10 are masked
4000H Line 15 is masked 0402H Lines 2&11 are masked
8000H Line 16 is masked 0802H Lines 2&12 are masked
0003H Lines 1&2 are masked 1002H Lines 2&13 are masked
0005H Lines 1&3 are masked 2002H Lines 2&14 are masked
0009H Lines 1&4 are masked 4002H Lines 2&15 are masked
0011H Lines 1&5 are masked 8002H Lines 2&16 are masked
0021H Lines 1&6 are masked 000CH Lines 3&4 are masked
0041H Lines 1&7 are masked 0014H Lines 3&5 are masked
0081H Lines 1&8 are masked 0024H Lines 3&6 are masked
0101H Lines 1&9 are masked 0044H Lines 3&7 are masked 
						

							Page 4 of 18 NECA 340-414-220 Revision 2.0
SPR-014 MCU 5000A Multipoint Control Unit
RS 422 LIF CLOCK SOURCE SETTING
LINE RELATED
SYSTEM 
PARAMETERLINE NUMBER TO BE MASKEDSYSTEM 
PARAMETERLINE NUMBER TO BE MASKED
0084H Lines 3&8 are masked 0210H Lines 5&10 are masked
0104H Lines 3&9 are masked 0410H Lines 5&11 are masked
0204H Lines 3&10 are masked 0810H Lines 5&12 are masked
0404H Lines 3&11 are masked 1010H Lines 5&13 are masked
0804H Lines 3&12 are masked 2010H Lines 5&14 are masked
1004H Lines 3&13 are masked 4010H Lines 5&15 are masked
2004H Lines 3&14 are masked 8010H Lines 5&16 are masked
4004H Lines 3&15 are masked 0060H Lines 6&7 are masked
8004H Lines 3&16 are masked 00A0H Lines 6&8 are masked
0018H Lines 4&5 are masked 0120H Lines 6&9 are masked
0028H Lines 4&6 are masked 0220H Lines 6&10 are masked
0048H Lines 4&7 are masked 0420H Lines 6&11 are masked
0088H Lines 4&8 are masked 0820H Lines 6&12 are masked
0108H Lines 4&9 are masked 1020H Lines 6&13 are masked
0208H Lines 4&10 are masked 2020H Lines 6&14 are masked
0408H Lines 4&11 are masked 4020H Lines 6&15 are masked
0808H Lines 4&12 are masked 8020H Lines 6&16 are masked
1008H Lines 4&13 are masked 00C0H Lines 7&8 are masked
2008H Lines 4&14 are masked 0140H Lines 7&9 are masked
4008H Lines 4&15 are masked 0240H Lines 7&10 are masked
8008H Lines 4&16 are masked 0440H Lines 7&11 are masked
0030H Lines 5&6 are masked 0840H Lines 7&12 are masked
0050H Lines 5&7 are masked 1040H Lines 7&13 are masked
0090H Lines 5&8 are masked 2040H Lines 7&14 are masked
0110H Lines 5&9 are masked 4040H Lines 7&15 are masked 
						

							NECA 340-414-220 Revision 2.0 Page 5 of 18
MCU 5000A Multipoint Control Unit SPR-014
RS 422 LIF CLOCK SOURCE SETTING
LINE RELATED
SYSTEM 
PARAMETERLINE NUMBER TO BE MASKEDSYSTEM 
PARAMETERLINE NUMBER TO BE MASKED
8040H Lines 7&16 are masked 4400H Lines 11&15 are masked
0180H Lines 8&9 are masked 8400H Lines 11&16 are masked
1280H Lines 8&10 are masked 1800H Lines 12&13 are masked
0480H Lines 8&11 are masked 2800H Lines 12&14 are masked
0880H Lines 8&12 are masked 4800H Lines 12&15 are masked
1080H Lines 8&13 are masked 8800H Lines 12&16 are masked
2080H Lines 8&14 are masked 3000H Lines 13&14 are masked
4080H Lines 8&15 are masked 5000H Lines 13&15 are masked
8080H Lines 8&16 are masked 9000H Lines 13&16 are masked
0300H Lines 9&10 are masked 6000H Lines 14&15 are masked
0500H Lines 9&11 are masked A000H Lines 14&16 are masked
0900H Lines 9&12 are masked C000H Lines 15&16 are masked
1100H Lines 9&13 are masked 0070H Lines 1,2&3 are masked
2100H Lines 9&14 are masked 00B0H Lines 1,2&4 are masked
4100H Lines 9&15 are masked 0013H Lines 1,2&5 are masked
8100H Lines 9&16 are masked 0023H Lines 1,2&6 are masked
0600H Lines 10&11 are masked 0043H Lines 1,2&7 are masked
0A00H Lines 10&12 are masked 0083H Lines 1,2&8 are masked
1200H Lines 10&13 are masked 0103H Lines 1,2&9 are masked
2200H Lines 10&14 are masked 0203H Lines 1,2&10 are masked
4200H Lines 10&15 are masked 0403H Lines 1,2&11 are masked
8200H Lines 10&16 are masked 0803H Lines 1,2&12 are masked
0C00H Lines 11&12 are masked 1003H Lines 1,2&13 are masked
1400H Lines 11&13 are masked 2003H Lines 1,2&14 are masked
2400H Lines 11&14 are masked 4003H Lines 1,2&15 are masked 
						

							Page 6 of 18 NECA 340-414-220 Revision 2.0
SPR-014 MCU 5000A Multipoint Control Unit
RS 422 LIF CLOCK SOURCE SETTING
LINE RELATED
SYSTEM 
PARAMETERLINE NUMBER TO BE MASKEDSYSTEM 
PARAMETERLINE NUMBER TO BE MASKED
8003H Lines 1,2&16 are masked 8009H Lines 1,4&16 are masked
00D0H Lines 1,3&4 are masked 0031H Lines 1,5&6 are masked
0015H Lines 1,3&5 are masked 0051H Lines 1,5&7 are masked
0025H Lines 1,3&6 are masked 0091H Lines 1,5&8 are masked
0045H Lines 1,3&7 are masked 0111H Lines 1,5&9 are masked
0085H Lines 1,3&8 are masked 0211H Lines 1,5&10 are masked
0105H Lines 1,3&9 are masked 0411H Lines 1,5&11 are masked
0205H Lines 1,3&10 are masked 0811H Lines 1,5&12 are masked
0405H Lines 1,3&11 are masked 1011H Lines 1,5&13 are masked
0805H Lines 1,3&12 are masked 2011H Lines 1,5&14 are masked
1005H Lines 1,3&13 are masked 4011H Lines 1,5&15 are masked
2005H Lines 1,3&14 are masked 8011H Lines 1,5&16 are masked
4005H Lines 1,3&15 are masked 0061H Lines 1,6&7 are masked
8005H Lines 1,3&16 are masked 00E1H Lines 1,6&8 are masked
0019H Lines 1,4&5 are masked 0121H Lines 1,6&9 are masked
0029H Lines 1,4&6 are masked 0221H Lines 1,6&10 are masked
0049H Lines 1,4&7 are masked 0421H Lines 1,6&11 are masked
0089H Lines 1,4&8 are masked 0821H Lines 1,6&12 are masked
0109H Lines 1,4&9 are masked 1021H Lines 1,6&13 are masked
0209H Lines 1,4&10 are masked 2021H Lines 1,6&14 are masked
0409H Lines 1,4&11 are masked 4021H Lines 1,6&15 are masked
0809H Lines 1,4&12 are masked 8021H Lines 1,6&16 are masked
1009H Lines 1,4&13 are masked 00C1H Lines 1,7&8 are masked
2009H Lines 1,4&14 are masked 0141H Lines 1,7&9 are masked
4009H Lines 1,4&15 are masked 0241H Lines 1,7&10 are masked