NEC Neax 2400 Imx Circuit Card Manual

							CHAPTER 3 ND-70182 (E)
Page 146
Revision 4.0
PA-CFTB
8-par ty Conference Trunk
PA-CFTB
8-party Conference Trunk
1. General Function
The PA-CFTB (CFT) circuit card provides an interface for establishing a conference, which is made up of
a maximum of eight parties.
A maximum of seven Tie Lines can participate in a conference when the associated trunks can receive an
answer signal and a release signal from the distant switching system. On the other hand, in the case of a
C.O. line, one C.O. line can be connected even if the public switching system cannot send an answer signal
and/or release signal. Note that a Tie Line and a C.O. Line cannot take part in a conference at the same time.
The card adopts “N-1 addition” method for establishing a conference.
Note:This circuit card is used for following features:
Station-Controlled Conference (Refer to Feature Programming Manual) [S-56]
Attendant-Controlled Conference (Refer to Feature Programming Manual) [A-2]
Add On Conference-8 Party (Refer to Feature Programming Manual) [A-121]
Group Call-Automatic Conference (20-party) (Refer to Wireless System Manual)
Figure 3-1   Location of PA-CFTB (CFT) within the System
NETWORKAnswer/Release Signal →
Conferee
Conference
Originator
CPU Local I/O Bus
GT INT SW INT PA-CFTB
7
6
5
4
3
2
1
0
PCM INTVPROC
PCM INT: PCM Interface
VPROC: Voice Processor Block
TLT
TLT
LC
LC
CH
This diagram shows an example of a “Preset” conference involving Tie Line connections. 
						

							ND-70182 (E) CHAPTER 3
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PA-CFTB
8-party Conference Trunk
2. Mounting Location/Condition
The PA-CFTB (CFT) card can be mounted in any universal slots as shown below.
Note: Indicates universal slots for line/trunk circuit cards.
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Mounting ModulePIM 
						

							CHAPTER 3 ND-70182 (E)
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Revision 4.0
PA-CFTB
8-par ty Conference Trunk
3. Face Layout of Lamps, Switches, and Connectors
The face layout of lamps, switches, and connectors on this circuit card is shown in Figure 3-2.
Figure 3-2   Face Layout of PA-CFTB (CFT)
4. Lamp Indications
The contents of lamp indications of this circuit card are shown in the table below.
LAMP
NAMECOLOR STATE
OPE Green Remains lit while this circuit card is operating.
N-OPE Red Remains lit while this circuit card is in make-busy state.
BL0
BL7Red BL-lamp remains lit while the corresponding circuit is busy.
Flash BL-lamp flashes when the corresponding circuit is busy.
OPE
N-OPE
MB SW2
SW1
SW0
BL7
BL0
~ 
						

							ND-70182 (E) CHAPTER 3
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PA-CFTB
8-party Conference Trunk
5. Switch Settings
Standard settings of switches on this circuit card are shown in the table below.
SWITCH
NAMESWITCH
NO.SETTINGSTANDARD
SETTINGMEANING
MBUP Circuit card make busy
DOWN
×Circuit card make busy cancel
SW01ON
×Fixed in the system
OFF
2ON
×Fixed in the system
OFF
3ON
×Fixed in the system
OFF
4ON
×Fixed in the system
OFF
5ON
×Fixed in the system
OFF
6ON
×Fixed in the system
OFF
7ON
OFF
×Fixed in the system
8ON
OFF
×Fixed in the system
12345678 
						

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PA-CFTB
8-par ty Conference Trunk
SWITCH
NAMESWITCH
NO.SETTINGSTANDARD
SETTINGMEANING
SW
1
1ON×Fixed in the system
OFF
2ON
×Fixed in the system
OFF
3ON
×Fixed in the system
OFF
4ON
×Fixed in the system
OFF
5ON
×Fixed in the system
OFF
6ON
×Fixed in the system
OFF
7ON
×Fixed in the system
OFF
8ON
OFF
×Fixed in the system
SW21ON
×µ-law PCM encoder
OFF A-law PCM encoder
2ON Conference connection is set up by PB tel.
OFF Conference connection is not set up by PB tel.
3ONWhen port Microprocessor (PM) is SP-388, 
SP-457, SP-863, SP-990, SP-1114.
OFFWhen Port Microprocessor (PM) is SP-519, 
SP-1141.
4OFF
×Not used
5OFF
×Not used
6OFF
×Not used
12345678
12345678 
						

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PA-CFTB
8-party Conference Trunk
6. Switch Setting Sheet
SWITCH 
NAMESWITCH
NO.SETTINGSTANDARD
SETTINGMEANING
SW27ONCFTB Insertion Loss (PAD value) Setting
OFF
8ON
OFF
MODULESLOT
NO.SWITCH
NAMESWITCH SHAPE REMARKS
PIMSW0
SW1
SW2
MB
DOWNCircuit card make busy cancel
SW2-7 SW2-8 PAD [dB]
OFF OFF 0
OFF ON 3
ON OFF 6
ON ON 9
12345678ON
12345678ON
12345678ON 
						

							CHAPTER 3 ND-70182 (E)
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Revision 4.0
PA - C K 1 4
Oscillator
PA-CK14
Oscillator
1. General Function
The PLO block of the TSW card generates its base clock signals, and adjusts their phase with the source
clock signals so the PLO can send the synchronized clock signals to the TSW. When the 1 IMG system is
a clock-subordinate-office of the digital network, the base clock accuracy of the PLO/ PH-SW10 (±5 ppm
deviation) is sufficient. However, the more high-precision base clock signals are required at the clock-
source-office, as this circuit card provides --- PA-CK14 (±0.3 ppm deviation). When this circuit card is
mounted, the 1 IMG system selects the PA-CK14 (OSC) clocks as the base clock of the PLO. 
Figure 3-3   Location of PA-CK14 (OSC) Card in the System
SEL
SEL
TDSW
MUX0PLOSEL
SEL
TDSW
MUX0PLO
BWB BWB BWBBWB
OSC OSC DTI 0 CLOCK SOURCE
DTI 1 CLOCK SOURCE
DTI 2 CLOCK SOURCE
DTI 3 CLOCK SOURCE
DSC 0DSC 1
FRONT CABLES FRONT CABLES
MUX1 MUX2 MUX3 MUX1 MUX2 MUX3
LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK
DSC1
DSC0 
						

							ND-70182 (E) CHAPTER 3
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PA-CK14
Oscillator
2. Mounting Location/Condition
The PA-CK14 (OSC) is located in PIM0. The card mounted in Slot 09 works as the primary OSC, 17 for
the secondary OSC.
Note:This card occupies two slots.
3. Face Layout of Lamps, Switches, and Connectors
The face layout of lamps, switches, and connectors is shown below.
Figure 3-4   Face Layout of PA-CK14 (OSC) Card 00 01 02 03 04 05 06 07 08
09 10 11 12 13 14 15 1617 18 19 20 21 22 23
Mounting ModulePIM
OSC#0 OSC#1
PIM0
CLKOUT 0
CLKOUT 1
MB 
						

							CHAPTER 3 ND-70182 (E)
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PA - C K 1 4
Oscillator
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.
6. External Interface
Since the base clock signals are delivered through the printed-wiring on the Back Wired Board (BWB) of
PIM 0, this circuit card does not require any external cabling.
7. Switch Setting Sheet
LAMP NAME COLOR STATE
CLKOUT0 Green Lights when OSC card delivers the clock signals to TSW#0.
CLKOUT1 Green Lights when OSC card delivers the clock signals to TSW#1.
SWITCH 
NAMESETTINGSTANDARD 
SETTINGMEANING
MBON Make-busy of the circuit card.
OFF×Normal setting.
SWITCH NAME SWITCH SHAPE REMARKS
MB
ON 
						

							ND-70182 (E) CHAPTER 3
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Revision 4.0
PH-CK16
Phase Lock Oscillator
PH-CK16
Phase Lock Oscillator
1. General Function
This circuit card, used together with a direct digital interface circuit card, sets up network synchronization
with the network. With this circuit card, the 4 IMG system can be a clock subordinate office of the digital
network. As seen in the figure below, the PLO can be redundant regardless of the system switching network
selection.
Figure 3-5   Location of PH-CK16 (PLO) Card in the System
TDSW00TDSW01TDSW02TDSW03
SEL
PLL PLL
PLO #0 PLO #1OSC OSC
TDSW10 TDSW11 TDSW12 TDSW13SEL 34PH EXCLK CA-A 34PH EXCLK CA-A MDFMDF
BWB BWB
BWB BWB
DTI 0 CLOCK SOURCE
DTI 1 CLOCK SOURCE
DTI 2 CLOCK SOURCE
DTI 3 CLOCK SOURCE
DCS 0DCS 1