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...

ND-70182 (E) CHAPTER 3
Page 147
Revision 4.0
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)
Page 148
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...

ND-70182 (E) CHAPTER 3
Page 149
Revision 4.0
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...

CHAPTER 3 ND-70182 (E)
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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...

ND-70182 (E) CHAPTER 3
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Revision 4.0
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...

ND-70182 (E) CHAPTER 3
Page 153
Revision 4.0
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...

CHAPTER 3 ND-70182 (E)
Page 154
Revision 4.0
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...

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...