NEC Mcu 5000a Multipoint Control Unit Equipment Manual

NECA 340-414-220 Revision 2.0 Page 1 of 2
MCU 5000A Multipoint Control Unit SPR-025
TC5000 OPERATION MODE SETTING
MULTIPOINT TELECONFERENCE RELATED
SUMMARY:
Set the following parameters of teleconference terminal (TC5000).
• Simultaneous multi-way conversation
• Picture switching
STEP PROCEDURE 
1 Enter the following command.
SSPR__ n1 =  x1 __n2 = x2 __ … ni = xi … ¿
ni:
System parameter address8EH 
and 8FH
[1] Addresses (hexadecimal values) on setting the TC5000 operation mode.  The 
operation mode is...

Page 2 of 2 NECA 340-414-220 Revision 2.0
SPR-025 MCU 5000A Multipoint Control Unit
TC5000 OPERATION MODE SETTING
MULTIPOINT TELECONFERENCE RELATED
STEP PROCEDURE 
x
i:
System parameter values See below:
[1] System parameter values on setting the TC5000 operation mode for the addresses 
8EH and 8FH.
The factory shipment value for the system parameter is 0000H
.
SYSTEM PARAMETER
PICTURE SWITCHING SIMULTANEOUS TALK
ADDRESS
8FHADDRESS
8EH
00H 00H
Picture broadcasting of the specified terminal which is...

NECA 340-414-220 Revision 2.0 Page 1 of 4
MCU 5000A Multipoint Control Unit SPR-026
PICTURE SWITCHING TIMERS 1 TO 4 SETTING
PICTURE RELATED
SUMMARY:Set the timing in picture switching.
STEP PROCEDURE 
Note:
Set the standard value for every communication rate.  A communication rate using a shorter 
timer is more likely to cause picture disturbances.  The standard value is a value capable of 
reducing picture disturbances to a level compatible with practical utility, with only a very few 
picture...

Page 2 of 4 NECA 340-414-220 Revision 2.0
SPR-026 MCU 5000A Multipoint Control Unit
PICTURE SWITCHING TIMERS 1 TO 4 SETTING
PICTURE RELATED
STEP PROCEDURE 
LINE BIT RATEADDRESS
TIMER 1 TIMER 2 TIMER 3 TIMER 4
64 kb/s×2 (56 kb/s×2) 180H 181H 182H 183H
128 kb/s (112 kb/s) 184H 185H 186H 187H
192 kb/s (168 kb/s) 188H 189H 18AH 18BH
256 kb/s (224 kb/s) 18CH 18DH 18EH 18FH
384 kb/s (336 kb/s) 194H 195H 196H 197H
512 kb/s (448 kb/s) 190H 191H 192H 193H
768 kb/s (672 kb/s) 198H 199H 19AH 19BH
1152 kb/s (1008...

NECA 340-414-220 Revision 2.0 Page 3 of 4
MCU 5000A Multipoint Control Unit SPR-026
PICTURE SWITCHING TIMERS 1 TO 4 SETTING
PICTURE RELATED
STEP PROCEDURE 
[2] Picture Switch Timer 1 ~ 4 (= 180H ~ 1A7H: Byte)
TRANSFER 
RATETIMER 1 TIMER 2 TIMER 3 TIMER 4
ADDRESSSET UP 
VALUEADDRESSSET UP 
VALUEADDRESSSET UP 
VALUEADDRESSSET UP 
VALUE
64 kbps x 2
56 kbps x 2+180H 400ms
(28H)+181H 1.25s
(7DH)+182H 2.4s
(18H)+183H 10s
(64H)
128 kbps
112 kbps+184H 400ms
(28H)+185H 1.25s
(7DH)+186H 2.4s
(18H)+187H 10s
(64H)...

Page 4 of 4 NECA 340-414-220 Revision 2.0
SPR-026 MCU 5000A Multipoint Control Unit
PICTURE SWITCHING TIMERS 1 TO 4 SETTING
PICTURE RELATED
STEP PROCEDURE 
The standard timer values corresponding to communication rates.
LINE BIT RATETIME (PARAMETER VALUE)
TIMER 1 TIMER 2 TIMER 3 TIMER 4
64 kb/s×2 400 ms (28H) 1.25 s (7DH) 2.4 s (18H) 10 s (64H)
128 kb/s 400 ms (28H) 1.25 s (7DH) 2.4 s (18H) 10 s (64H)
192 kb/s 400 ms (28H) 630 ms (3FH) 1.8 s (12H) 10 s (64H)
256 kb/s 400 ms (28H) 420 ms (2AH) 1.8 s (12H)...

NECA 340-414-220 Revision 2.0 Page 1 of 2
MCU 5000A Multipoint Control Unit SPR-027
AUDIO CAPABILITY SETTING
TERMINAL CAPABILITY RELATED
SUMMARY:
Set the audio capability supported by MCU 5000A. MCU 5000A corresponds to 
“G.725 type 0” (but, without A-Law)
STEP PROCEDURE 
Note:
Set the audio capability with the factory shipment value (0AH 00H 00H 00H)
 as a general rule.  
If change is necessary for any  reason, follow the steps described below.
1 Enter the following command.
SSPR__ n1 =  x1 __n2 = x2 __...

Page 2 of 2 NECA 340-414-220 Revision 2.0
SPR-027 MCU 5000A Multipoint Control Unit
AUDIO CAPABILITY SETTING
TERMINAL CAPABILITY RELATED
STEP PROCEDURE 
x
i:
System parameter values See  below:
[1] System parameter values on setting the audio capability for the addresses 100H to 
103H. The factory shipment value for the system parameter is 0AH 00H 00H 00H
.
SYSTEM PARAMETER  AUDIO CAPABILITY
ADDRESS
103HADDRESS
102HADDRESS
101HADDRESS
100Hm-law (G.725 TYPE 0) G.722-64 G.722-48
00H 00H 00H 00H OFF OFF...

NECA 340-414-220 Revision 2.0 Page 1 of 6
MCU 5000A Multipoint Control Unit SPR-028
TRANSFER RATE CAPABILITY SETTING
TERMINAL CAPABILITY RELATED
SUMMARY:Set the transfer rates to be used.
STEP PROCEDURE 
Note:
When operating at the several transfer rates, set the several transfer rate capabilities to ON.  
The transfer rates usable, however, may not go beyond the line rates set for the addresses 
between  30H and  37H.
1 Enter the following command.
SSPR__ n1 =  x1 __n2 = x2 __ … ni = xi … ¿
ni:
System...

Page 2 of 6 NECA 340-414-220 Revision 2.0
SPR-028 MCU 5000A Multipoint Control Unit
TRANSFER RATE CAPABILITY SETTING
TERMINAL CAPABILITY RELATED
STEP PROCEDURE 
x
i:System parameter values See below:
[2] System parameter values on setting the transfer rate  capability for the address 104H.  
The factory shipment value for the system parameter is 
C2H.
SYSTEM PARAMETER USABLE TRANSFER RATE
00H None
01H 64 kb/s
02H 64 kb/s×2
03H 64 kb/s and 64 kb/s×2
40H 128 kb/s
41H 64 kb/s and 128 kb/s
42H 64 kb/s×2 and...