NEC Neax 2400 Imx Circuit Card Manual

							CHAPTER 2 ND-70182 (E)
Page 76
Revision 4.0
PH-M16/PH-M23
Line Test
PH-M16/PH-M23
Line Test
1. General Function
This circuit card controlled by CPU is used for line test of a subscriber’s line. The circuit card supports to
send Howler Tone to external test equipment, besides the circuit card can detect or send various tones, and
send PB (DTMF) signal for automatic trunk test.
Note:A system cannot send Howler Tone during line test. The number of available lines within the line test/au-
tomatic trunk test at the same time is only one.
Figure 2-30   Location of PH-M16/PH-M23 (LTST) Card Within the System
LC
LC
I
N
T
TSW
TEL TEL
PIM
LPRA
LT S TTEST
EQGT
EXGT
CPU
EXTENDED I/O BUS
EXTENDED I/O BUS 
						

							ND-70182 (E) CHAPTER 2
Page 77
Revision 4.0
PH-M16/PH-M23
Line Test
2. Mounting Location/Condition
The LTST circuit card can be accommodated in the shaded slots (00, 01, 02) as shown below:
Note:IMX: Slot 00, Slot 01, Slot 02.
IMX-U: Slot 01, Slot 02 (Considering PH-M22 MMC)
3. Face Layout of Lamps, Switches, and Connectors
The face layout of lamps, switches, and connectors on this circuit card is shown in Figure 2-31.
Figure 2-31   Face Layout of PH-M16/PH-M23 (LTST) Card
Note:
CRIN is used to connect with CRIN test equipment.
LPMMounting Module
00   01    02    03    04 
PH-M16/PH-M23 PH-M16/PH-M23PH-M16/PH-M23
MB OPE/MB
SW0
CRIN 
						

							CHAPTER 2 ND-70182 (E)
Page 78
Revision 4.0
PH-M16/PH-M23
Line Test
4. Lamp Indications
5. Switch Settings
 
LAMP NAME COLOR DESCRIPTION
OPE/MBGreen This circuit card is operating in normal mode.
Red This circuit card is Make-busy.
SWITCH 
NAME SWITCH
NOSETTINGSTANDARD
SETTINGMEANING
MBUP Circuit card Make-busy
DOWN Circuit card Make-busy cancel
SW01ON×Setting of a condition of DT detection
(440Hz+350Hz)
2ON×Setting of a condition of RBT detection
(440Hz+480Hz)
3ON Time of PB (DTMF) signal sending (67msec.)
OFF×Time of PB (DTMF) signal sending (133msec.)
4ONSetting of M-wire control which is concerned with
sending test tone of ODT
(Set soft control or E-wire loop-back)
OFFSetting of M-wire control which is concerned with
sending test tone of ODT
(Set soft control only)
5
6
7
8
BASIC INTERVAL TIMER
SW0
5678TIME
ON OFF OFF OFF 8
µ
ON ON OFF OFF 16µ
ON ON ON OFF 32µ
ON ON ON ON 64µ 
						

							ND-70182 (E) CHAPTER 2
Page 79
Revision 4.0
PH-M16/PH-M23
Line Test
6. External Interface
Figure 2-32   LT Connector Lead Accommodation
00   01    02    03    04 
PH-M16/PH-M23 PH-M16/PH-M23PH-M16/PH-M23
Circuit Card Backboard Connector
Connector Name
Slot Number
LPM
LPM Backboard
MISCCircuit Card Backboard Connector
MISC CONNECTOR
68PH EXMISC CABLE MISC Connector Accommodation
2627
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
501
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25TE
TELB
LCB
THOWB
THOWS
INBTM
TELA
LCA
THOWA
ONHK
INA
SE TCR
ATM
ATA ATB
OUTA OUTB
TA1 TB1
MISC CONNECTOR 
						

							CHAPTER 2 ND-70182 (E)
Page 80
Revision 4.0
PH-M16/PH-M23
Line Test
Figure 2-32   Connecting Route Diagram
7. Switch Setting Sheet
SWITCH NAME SWITCH SHAPE REMARKS
MB
SW0
OUTA
OUTATE
INA
INB
TA 1
TB1
TM
RA
RBM
TA
TB
E
BA
LT S T
 TLT
 LC
PBXMDP
ON (MB)
OFF
1ON2345
678 
						

							ND-70182 (E) CHAPTER 2
Page 81
Revision 4.0
PH-PC36
Multiplexer
PH-PC36
Multiplexer
1. General Function
The PH-PC36 (MUX) circuit card is an interface card for mounting line circuits and/or trunks. In between
the CPR and the Port Microprocessor (PM) of the line/trunk circuit, this circuit card provides an interface
for PM control and management by the CPU. Likewise in between the TSW and the line circuit/trunks, this
circuit card provides an interface for multiplexing/de-multiplexing of voice Pulse Code Modulation (PCM)
information and digital data information.
Figure 2-33   Location of PH-PC36 (MUX) Card in the 1 IMG System
MUX
MUX
MUX
CPR
GT
LC/TRK
PM
LC/TRK
PM
LC/TRK
PM
LC/TRK
PM
MUX TSW/INT/PLO
PCM HW
PM BUS
PM BUS
PM BUS
PM BUS PCM HW
PCM HW
PCM HW 
						

							CHAPTER 2 ND-70182 (E)
Page 82
Revision 4.0
PH-PC36
Multiplexer
Figure 2-34   Location of PH-PC36 (MUX) Card in the 4 IMG System
TDSW
13
TDSW
03
MUX
MUX
MUX
MUX
PCM HW
PM BUS
PCM HW
PM BUS
PCM HW
PM BUS
PCM HW
PM BUSLine/Trunk PM
Line/Trunk PM
Line/Trunk PM
Line/Trunk PM
IMG 3
TDSW
12
TDSW
02
MUX
MUX
MUX
MUX
PCM HW
PM BUS
PCM HW
PM BUS
PCM HW
PM BUS
PCM HW
PM BUSLine/Trunk PM
Line/Trunk PM
Line/Trunk PM
Line/Trunk PM
IMG 2
TDSW
11
TDSW
01
MUX
MUX
MUX
MUX
PCM HW
PM BUS
PCM HW
PM BUS
PCM HW
PM BUS
PCM HW
PM BUSLine/Trunk PM
Line/Trunk PM
Line/Trunk PM
Line/Trunk PM
IMG 1
TDSW
10
TDSW
00
MUX
MUX
MUX
MUX
PCM HW
PM BUS
PCM HW
PM BUS
PCM HW
PM BUS
PCM HW
PM BUS
Line/Trunk PM
Line/Trunk PM
Line/Trunk PM
Line/Trunk PM
IMG 0
GT 1
GT 0 CPR 1
ISAGT
CPR 0
ISAGT
DLKC 1
DLKC 0 
						

							ND-70182 (E) CHAPTER 2
Page 83
Revision 4.0
PH-PC36
Multiplexer
Figure 2-35   Location of PH-PC36 (MUX) Card in the IMX-U System
MUX00
LC/TRK
LC/TRK
LC/TRK
LC/TRK
DLKC0
LC/TRK
LC/TRK
LC/TRK
LC/TRK
LC/TRK
LC/TRK
LC/TRK
LC/TRK
LC/TRK
LC/TRK
LC/TRK
LC/TRK
MUX01
MUX02
MUX03
MUX10
MUX11
MUX12
MUX13
TSW00
TSW10
TSW01
TSW11
TSW02
TSW12
TSW03
TSW13
PLO 0
PLO 0
DLKC1
PLO 1
PLO 1
MUX
MUX
TSW00
TSW01
TSW02
TSW03HSW00
HSW01HSW10
HSW11TSW10
TSW11
TSW12
TSW13
LN
ISW 
						

							CHAPTER 2 ND-70182 (E)
Page 84
Revision 4.0
PH-PC36
Multiplexer
The PCM highway running is illustrated in the figure below. There are sixteen 2Mbps PCM highways
(HW0 - HW15) in the PIM. Each PCM highway runs from a card slot to the MUX circuit card. For instance,
highway number zero (HW0) appears in Slot 04 and also Slot 05, thus the HW0 carries the PCM of the
Group 0, 1, 2 and 3. 
Likewise, the HW6, 7, 14, 15 cover the Groups 24 through 31. However, the time slots of Groups 24 and
25 are exclusively used for the Speech Path Memory (SPM).
All highways in the PIM lead to a MUX card, so 512 time slots (32 time slots per highway × 16 highways
= 512 time slots) of PCM are multiplexed/de-multiplexed at a MUX and sent/received to/from the TSW
circuit card across the 32.786Mbps of the Low Voltage Differential Signaling (LVDS).
Also the MUX card provides the PM bus interface. The CPR controls and administrates the PM of the line/
trunk circuit card via the TSW and the MUX.
In addition, this circuit card supports 3-Party Conference (CFT) function and is equipped with eight circuits
of 3-Party Conference. The CFT appear in time Slots 8 through 31 of the HW13 (Group 21 - 23).
Figure 2-36   PCM Highway Running
MUX#1MUX#0
HW6
00 01 02 03 04 05 06 07 08 09 10 11
1213 14 15 16 17 18 19 20 21 22 23
PWR PWR0 12 34 56 78 910 1112 13 14 1516 17 18 1920 21 22 230 12
3
4
56 78 910
1112
13
14 1516 1718
1920
21
22
23
(24) (25)26 2728 29 31 3026 2728 2930 31HW0HW1HW2HW3HW4
HW5
HW8HW9HW10HW12
HW7HW14HW15 Slot number of the PIM U-A
Group (G) number of the LENS
8 circuits of CFTs
Group 24 and 25 are used
for the SPM2Mbps (32 time slots) of PCM highway
HW13HW11 
						

							ND-70182 (E) CHAPTER 2
Page 85
Revision 4.0
PH-PC36
Multiplexer
2. Mounting Location/Condition
For the 1 IMG system, the PH-PC36 (MUX) card is mounted in the PIM 1, 2, and 3.
For the 4 IMG system, the PH-PC36 (MUX) card is required in all PIMs.
3. Face Layout of Lamps, Switches, and Connectors
The face layout of lamps, switches, and connectors is shown in Figure 2-37.
Figure 2-37   Face Layout of  PH-PC36 (MUX) 00 01 02 03 04 05 06 07 08 09 10 11 12
13 14 15 16 17 18 19 20 21 22 23
PIM
Mounting ModulePIM
MUX #0 MUX #1
1
2
3
4
SW01OFF ONMUXACT
MB
SYNC
RCLK ALM
PMCLK ALM
CFT OPE
MUX