NEC Neax 2400 Ipx Installation Manual

NDA-24306 CHAPTER 3
Page 193
Revision 1.0
This NAP explains the following work items:
NAP-200-014
Sheet 1/27
Cable Termination and Cross 
Connections from MDF to
Peripheral Equipment, C. O. Lines, and 
Tie Lines
MDF
C.O. Line/ 
Tie LineCross Connection of 
Stations
Cross Connection of 
Trunks (C.O. Lines and 
Tie Lines)
Cross Connections 
for PFT
Cross connection of Alarm 
Indicating Panel and
Cross connections for 
TAS indicator
Cross connections for
External Switches
Connection of 
Announcement...

CHAPTER 3 NDA-24306
Page 194
Revision 1.0
1. CROSS CONNECTION OF STATIONS
Note 1:Provide the necessary cross connections at the MDF by using copper wires of 0.5 mm diameter (24 AWG).
2-core twisted wire is used for speech path, and single-core wire is used for control wire.
It is recommended that wires of different colors be used for trunks, station lines, PFT, etc., so that they can
easily be distinguished.
Note 2:For cross connections between stations and C.O. lines for PFT, refer to Section 3. “CROSS...

NDA-24306 CHAPTER 3
Page 195
Revision 1.0
2. CROSS CONNECTION OF TRUNKS (C.O. LINES AND TIE LINES)
Note 1:Provide the necessary cross connections at the MDF by using copper wires of 0.5 mm diameter 
(24 AWG). 2-core twisted wire is used for speech path, and single-core wire is used for control wire.
It is recommended that wires of different colors be used for trunks, station lines, PFT, etc., so that they can
easily be distinguished.
Note 2:For cross connections between stations and C.O. lines for PFT,...

CHAPTER 3 NDA-24306
Page 196
Revision 1.0
Figure 014-2  Cross Connection of Trunks (C.O. Lines and Tie Lines)
NAP-200-014
Sheet 4/27
Cable Termination and Cross 
Connections from MDF to Peripheral 
Equipment, C. O. Lines, and Tie Lines
AX
BX 16COT 
CARDC.O. LINE
Module Group Side
AX
BX 8TLT 
CARDTIE LINE
TA X
RAX
8TLT 
CARD
TIE LINE
EX
MX
TBX
RBX
(1) 16COT card
(3) 8TLT card (for E&M Trunk) (2) 8TLT card (for DID Trunk)
Note 1
Note 1:For 2W/4W E&M systems, these leads are not used.
Note 2:For No. 4–7...

NDA-24306 CHAPTER 3
Page 197
Revision 1.0
3. CROSS CONNECTIONS FOR PFT
Note 1:The COT must be accommodated in a universal slot of the same Unit (U) in which the cross-connected PFT
is mounted. See the figure below.
Note 2:Provide the necessary cross connections at the MDF by using copper wires of 0.5 mm diameter (24 AWG).
2-core twisted wire is used for speech path, and single-core wire is used for control wire. It is recommended
that wires of different colors be used for trunks, station lines, PFT,...

CHAPTER 3 NDA-24306
Page 198
Revision 1.0
Figure 014-4  Cross Connection for PFT
NAP-200-014
Sheet 6/27
Cable Termination and Cross 
Connections from MDF to Peripheral 
Equipment, C. O. Lines, and Tie Lines
PBX
COT
PFT(PA-M53) CardLT  
AXX
BXX
LT  
AXX
BXX
MDF MDF
NCU
ROXX
TOXX
RIXX
TIXX
NCU
AOXX
BOXX
AIXX
BIXX Analog TelephoneInstallation Cable

:        When PIM Power is OFF
:        When PIM Power is ON
LC
Central
Office 

NDA-24306 CHAPTER 3
Page 199
Revision 1.0
4. CROSS CONNECTION OF ALARM INDICATING PANEL AND MUSIC ON HOLD
Note:Provide the necessary cross connections at the MDF by using copper wires of 0.5 mm diameter (24 AWG).
2-core twisted wire is used for speech path, and single-core wire is used for control wire. It is recommended
that wires of different colors be used for trunks, station lines, PFT, etc., so that they can easily be distin-
guished.
 Alarm Indicating Panel
 Music On Hold
NAP-200-014
Sheet 7/27...

CHAPTER 3 NDA-24306
Page 200
Revision 1.0
Figure 014-5  Connection of Alarm Indicating Panel
NAP-200-014
Sheet 8/27
Cable Termination and Cross 
Connections from MDF to Peripheral 
Equipment, C. O. Lines, and Tie Lines
 Locations of Terminal and Connector
 General Cable Connection for Alarm Indicating Panel
FRONT VIEW
RPT Terminal (PZ-M377)
TPWR
FA L M
-48VGND
(RPT0) (RPT1) LPR
BASEU
01234
1234 512 34 5
01 02 03 04 05 01 02 03 04 05
-48V
(RPT0)G
(RPT1)
AUDIBLE AND VISUAL
ALARM INDICATING PANEL
MDFMJ...

NDA-24306 CHAPTER 3
Page 201
Revision 1.0
Figure 014-5  Connection of Alarm Indicating Panel (Continued)
Figure 014-6  Connection of Music on Hold
NAP-200-014
Sheet 9/27
Cable Termination and Cross 
Connections from MDF to Peripheral 
Equipment, C. O. Lines, and Tie Lines
68PH EXMISC CA cable
Pin Assignment
MISC0A12
11
10
9
8
7
6
5
4
3
2
1MPALM
EXTAA
BELAA
-
MNAA
SUPAA
MJAA37
36
35
34
33
32
31
30
29
28
27
26MNBA
SUPBA
MJBABELAA
MNAA
SUPAA
MJAA
BELBA
MNBA
SUPBA
MJBA
   RPT1(G)
   RPT0(-48V)
MDF...

CHAPTER 3 NDA-24306
Page 202
Revision 1.0
5. CROSS CONNECTIONS FOR TAS INDICATOR
Note:Provide the necessary cross connections at the MDF by using copper wires of 0.5 mm diameter (24 AWG).
2-core twisted wire is used for speech path, and single-core wire is used for control wire. It is recommended
that wires of different colors be used for trunks, station lines, PFT, etc., so that they can easily be distin-
guished.
NAP-200-014
Sheet 10/27
Cable Termination and Cross 
Connections from MDF to Peripheral...