NEC Neax 2400 Imx Circuit Card Manual

CHAPTER 2 ND-70182 (E)
Page 86
Revision 4.0
PH-PC36
Multiplexer
4. Lamp Indications
 The contents of lamp indications of this circuit card are shown in the table below.
5. Switch Settings
Standard settings of switches on this circuit card are shown in the table below.
LAMP NAME  COLOR STATE
MUX ACT Green Remains lit while this circuit card is in ACT state.
SYNC GreenLights when 32 Mbps Frame Head (FH) synchronization is established between the 
MUX and TSW.
RCLK ALM Red Lights when the 32 Mbps clock...

ND-70182 (E) CHAPTER 2
Page 87
Revision 4.0
PH-PC36
Multiplexer
6. External Interface
For the 1 IMG system, the cable connections between the MUX and the TSW are shown in Figure 2-38.
Figure 2-38   External Interface for PH-PC36
TDSW
#0
MUX
#0
MUX
#0MUX
#1
MUX
#1
MUX
#1MUX
#0
TDSW
#1
MT24 TDSW CA-180
MT24 TDSW CA-140
MT24 TDSW CA-90
PIM 3
PIM 2
PIM 1
PIM 0 

CHAPTER 2 ND-70182 (E)
Page 88
Revision 4.0
PH-PC36
Multiplexer
The cable connections between the MUX and the TSW are shown in Figure 2-39. As seen in this illustration,
the cable connected to the front of the MUX leads to the “MUX###” connector on the Back Wired Board (BWB)
of the TSWM. See the NEAX2400 IMX Installation Manual for more details.
Figure 2-39   Cable Connections between the MUX and the TSW
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
PH-PC36(MUX)
PH-PC36(MUX)
PIM...

ND-70182 (E) CHAPTER 2
Page 89
Revision 4.0
PH-PC36
Multiplexer
7. Switch Setting Sheet
SWITCH NAME SWITCH SHAPE REMARKS
MB
SW01
ON
1ON234 

CHAPTER 2 ND-70182 (E)
Page 90
Revision 4.0
PH-PC20
Data Link Controller
PH-PC20
Data Link Controller
1. General Function
This circuit card simultaneously provides all the Attendant Consoles (ATTs) in the system (except the 1-
IMG system) with information such as the termination/answer/release (abandoned) information of ATT
calls, or the station idle/busy information through the TSW system link.
Figure 2-40   Location of PC-PH20 in the System
Note:
MG = 01/03/05/07, Unit = 2, Group = 25, Level = 6-7 are...

ND-70182 (E) CHAPTER 2
Page 91
Revision 4.0
PH-PC20
Data Link Controller
3. Face Layout of Lamps, Switches, and Connectors
The face layout of lamps, switches and connectors of this circuit card is shown in Figure 2-41.
Figure 2-41   Face Layout of the PH-PC20 Card
4. Lamp Indications
Lamp indications for this circuit card are shown in the table below.
LAMP NAME COLOR STATE
OPE/MBGreen Remains lit while this circuit card is in ACT state.
RedRemains lit while this circuit card is in Make-busy state or when...

CHAPTER 2 ND-70182 (E)
Page 92
Revision 4.0
PH-PC20
Data Link Controller
5. Switch Settings
Standard settings of various switches on this circuit card are shown in the table below.
6. External Interface
No cable connections are required.
7. Switch Setting Sheet
SWITCH 
NAMESWITCH NO. SETTINGSTANDARD 
SETTINGMEANING
MBUP Circuit card Make-busy.
DOWN Circuit card Make-busy cancel.
SWITCH NAME SWITCH SHAPE REMARKS
MB
ON 

ND-70182 (E) CHAPTER 2
Page 93
Revision 4.0
PH-PC40
Emergency Alarm Controller
PH-PC40
Emergency Alarm Controller
1. General Function
The PH-PC40 (EMA) circuit card detects various kinds of alarms which might occur in the system, and
sends out information about the detected alarm to the circuits concerned. This circuit card can activate the
system MJ/MN LEDs on the TOPU. Additionally, this card can control the active/stand-by status of the
CPU in the case of dual configuration. For the 1 IMG system, this...

CHAPTER 2 ND-70182 (E)
Page 94
Revision 4.0
PH-PC40
Emergency Alarm Controller
2. Mounting Location/Condition 
The PH-PC40 (EMA) card is mounted in Slot 04 of the LPM, as shown below.
3. Face Layout of Lamps, Switches, and Connectors
The face layout of lamps, switches, and connectors is shown in Figure 2-43.
Figure 2-43   Face Layout of the PH-PC40 (EMA) Card
Mounting ModuleLPM
LPM
PH-IO24 (IOC) PH-PC40 (EMA)
00  01   02  03  04 
OPE/MB
MB
ACT1
CKERR1
ACT0
EMASUP
EMASUP
CPU SEL
NMI SEL CKERR0
SW65...

ND-70182 (E) CHAPTER 2
Page 95
Revision 4.0
PH-PC40
Emergency Alarm Controller
4. Lamp Indications
Lamp indications for this circuit card are shown in the table below.
5. Switch Settings
Standard settings for switches on this circuit card are shown in the table below.
Note:Set CPUSEL switch downward, if it is single CPU system.
LAMP NAME COLOR STATE
OPE/MBGreen Indicates the circuit card is operating normally.
Red Indicates the circuit card is in a Make-busy state.
ACT1 Green CPU #1 is in the ACT state....