NEC Mcu 5000a Multipoint Control Unit Equipment Manual

NECA 340-414-210 Revision 2.0 Page 1 of 4
MCU 5000A Multipoint Control Unit GSD-004
EC H221 MUX Unit
Figure 1:   EC H221 MUX Unit
EC H221 MUX
RC 16
9
8
1
DSW 1
NOR    DBG
OFF   ON
CLK
7M
14M CN1
CN2SW 1 DSW 1
RST 4
1 RC 1RC 8RC 9 RC 16
14
OFF   ONMEM INH 2
1 3 4 5 6 7 89 10 11 12
13 14 15
MEM ERFUN ERTEST H PATHLOOP 0 LOOP 1REM ALMREC
16
FPR Rx
FUR Rx
FPR Tx
FUR Tx
MUX TEST
(b) SIDE VIEW (a) SIDE VIEW
(AMBER)
(GREEN)
(GREEN)
(GREEN)
(GREEN)(AMBER)
(AMBER)
(AMBER)
(AMBER)
(AMBER)(AMBER)
(AMBER)
(LED)
SW...

Page 2 of 4 NECA 340-414-210 Revision 2.0
GSD-004 MCU 5000A Multipoint Control Unit
Table 1: Switch and Strap Setting for EC H221 MUX Unit
COMPONENTS SETTING FUNCTION SHIPPING CONDITION
DSW1 3
4bit 3 bit 4 MUX function test setting.
ALL.OFFOFF OFF Normal mode (MUX function test OFF)
ON OFF TEST 1
OFF ON TEST 2
ON ON TEST 3
2 bit 2 For future use
1 bit 1 Memory test inhibit
OFF Executes the memory test at the time of start-up.
ON Not execute the memory test at the time of start-up.
SW1 (RST) _ CPU RESET...

NECA 340-414-210 Revision 2.0 Page 3 of 4
MCU 5000A Multipoint Control Unit GSD-004
Table 2: Switch and Strap Setting for EC H221 MUX  Unit
COMPONENTS SETTING FUNCTION SHIPPING CONDITION
S5 232 Sets RS-232C driver/receiver, to ON/OFF
NOR side
DBG side. Makes possible the use of the RS-232C 
driver receiver of the debug terminal.
NOR side. Places the RS-232C driver receiver of the 
debug terminal in a stand-by state.
S6 WDT Sets the watchdog timer ON/OFF.
NOR side
DBG side. Inhibits the watchdog timer...

Page 4 of 4 NECA 340-414-210 Revision 2.0
GSD-004 MCU 5000A Multipoint Control Unit
Table 3: LED Functions for ES H221 MUX Unit
LED NO. LED NAME FUNCTION LED COLOR
RC 16 REC Lights when H221 is in out-of-sync condition 
Amber RC 15 REM ALM Lights when H221 A bit (REM ALM) is received.
RC  14 LOOP  1 Lights during the local loopback mode of operation.   (point B 
and point C)
RC 13 LOOP 0 Lights when point C is in the loopback mode (local, remote).
RC 12 H PATH Lights at time of H221 MUX pass through.
RC...

NECA 340-414-210 Revision 2.0 Page 1 of 2
MCU 5000A Multipoint Control Unit GSD-005
V SW/LSD IF Unit
Figure 1:   V SW/LSD IF Unit
CN1
CN2
S2
S1 NOR
DBG
ChLChH
MON 4
1 MON SEL (SW 2)RST (SW3)SW1A
B CH 1CH 8 CH 1 CH 8CH 1 CH 8 CONF B CONF A VSW/LSD
ALM RC (AMBER )
RC (GREEN)  CH1 TO 8
TOGGLE SWCONF A (UPWARD)
4 P ANGLE PIN HEADERRC (GREEN)  CH1 TO 8
RC (GREEN)  CH1 TO 8
CONF B (DOWNWARD)
RC (RED)
PUSHBUTTON SW
THUMB WHEEL SW
(a) SIDE VIEW(b) FRONT VIEW
JOINER
OPERATOR
BROADCAST
CN 3RC 2
RC 20
27 19 RC...

Page 2 of 2 NECA 340-414-210 Revision 2.0
GSD-005 MCU 5000A Multipoint Control Unit
Table 1: Switch and Strap Setting for V SW/LSD Unit
COMPONENTS SETTING FUNCTION SHIPPING CONDITION
CONF A/B 
(Toggle SW, 
SW1)Selects the status indication of conference A.
(Toggle SW is in up state.) 
Selects the status indication of conference B.
(Toggle SW is in down state.)
RST (Push-
button SW, 
SW3)_ For resetting the PN pattern alarm. PUSH:  RESET
MON SEL
(Thumb wheel 
SW, SW2)_Selects the output (CH1-CH8) for...

NECA 340-414-210 Revision 2.0 Page 1 of 2
MCU 5000A Multipoint Control Unit GSD-006
A CODEC Unit
Figure 1:   A CODEC Unit
CN1
CN2INHA CODEC
S1S2
S3
S4
S5S6
S7S8CH 4
CH 1RC 4
RC 1RC 4
RC 1Talker
S10
S11
S9 512
(a) SIDE VIEW(b) FRONT VIEW
(LED)
256
512
256
NOR 

Page 2 of 2 NECA 340-414-210 Revision 2.0
GSD-006 MCU 5000A Multipoint Control Unit
Table 1: Switch and Strap Settings for A CODEC Unit
COMPONENTS SETTING FUNCTION SHIPPING CONDITION
S10
S11- ROM type setting
512 side 27C512
256 side 27C256
S9- Slot address inhibit
INH side INHIBIT
NOR side NORMAL
S1 (CH 1)
S3 (CH 2)
S5 (CH 3)
S7 (CH 4)-Sets SB-ADPCM DECODER mode.
1-2: CCITT ALGORITHM
2-3: NEC ALGORITHM
4-5: NORMAL
5-6: TONE OUT (0 dB, 1 kHz)
7-8: NORMAL
8-9: TONE OUT (0 dB, 1 kHz)
S2 (CH 1)
S4 (CH 2)
S6...

NECA 340-414-210 Revision 2.0 Page 1 of 2
MCU 5000A Multipoint Control Unit GSD-007
A SUM Unit
Figure 1:   A SUM Unit
CN1
CN2A SUM
NOR
256
256S2
S3
RV 1
SW 1 CN 3RC 20RC13 RC 12 RC 11RC 10RC 3 RC 2 RC 1
CH 8
CH 1
CH 1 CH 8
MON OUTCONF A
CONF BMS BMS A SB-ADPCM
µ-LawPCM
SB-ADPCM
µ-LawPCM
CONF A
CONF B
S1
(a) SIDE VIEW (b) FRONT VIEW
INH
512
512
(LED)
Table 1: Switch and Strap Settings for  a SUM Unit
COMPONENTS SETTING FUNCTION SHIPPING CONDITION
S2
S3- ROM type setting.
256 side.
256 side 27C256
512 side...

Page 2 of 2 NECA 340-414-210 Revision 2.0
GSD-007 MCU 5000A Multipoint Control Unit
Table 2: LED Functions  for a SUM Unit
LED NO. LED NAME FUNCTION LED COLOR
RC1 SB-ADPCM Lights when conference A  operates in SB-ADPCM. Green
RC2 µ -Law PCM Lights when conference A operates in µ -law PCM. Green
RC3 to RC10 MS-A Lights only when main talker at CONF A is talking.
(All light up when initializing.)
RC3:   CH8
RC10:  CH1 Green
RC11 SB-ADPCM Lights when conference B go to SB-ADPCM. Green
RC12 µ -Law PCM Lights...