NEC Neax 2000 Ivs2 Data Interface System Manual

							CHAPTER 3 SYSTEM DATA PROGRAMMING
Digital Trunk Interface Assignment
NEAX2000 IVS2 Data Interface System Manual    
ND-70924 (E), Issue 1.0   Page 53
DESCRIPTION DATA
Specify the kind of digital data 
transmission.
(1)
(2)YY=92
00-63: Trunk Route No.
0  :  Digital Data Transmission 
(48 kbps)
1  :  Digital Data Transmission 
(56 kbps)
2  :  Digital Data Transmission 
(Transparent)
3  :  Reversal of F&S Bits
7  :  Data Transmission via ModemCM35
C
END 
						

							NEAX2000 IVS2 Data Interface System Manual    
ND-70924 (E), Issue 1.0   Page 55
CHAPTER 4
OPERATION TEST
This chapter explains the operation tests to be performed after you
have completed the installation of the Data Interface to the PBX. 
						

							 NEAX2000 IVS2 Data Interface System ManualPage 56  ND-70924 (E), Issue 1.0
CHAPTER 4 OPERATION TEST
DPC Loopback Test
DPC LOOPBACK TEST
This test is the intra-office loopback test on the DPC card using a modem tester. There are two
kinds of loopback (Loopback 1, Loopback 2) as shown in Figure 4-1. Either the Loopback 1 or
the Loopback 2 can be selected by switch settings on the DPC card.
Figure 4-1  DPC Loopback Tests
V.110DPC
V.110DPC Loopback 1
PBX
MODEM TESTER
DTI
Loopback 2
MODEM TESTER
DTI
NOTE:The modem tester is locally provided. 
						

							CHAPTER 4 OPERATION TEST
DPC Loopback Test
NEAX2000 IVS2 Data Interface System Manual    
ND-70924 (E), Issue 1.0   Page 57
DPC Loopback 1 Test
(1) Set the SW1 on the DPC card as shown below.
(2) Confirm whether the LB01 lamp (for No. 0 circuit) or the LB11 lamp (for No. 1 circuit) on the 
DPC card lights.
 If the LB01 lamp or the LB11 lamp does not light, check the switch settings on the DPC card 
and the system data assignment.
(3) Connect a modem tester to the DPC card as shown in Figure 4-2.
Figure 4-2  Connection of Modem Tester
For No. 0 CircuitFor No. 1 Circuit
4 
3 
2 
1 OFF
ON SW1
4 
3 
2 
1 OFF
ON SW1
: POSITION TO BE SET
MODEM TESTER
DPC
PBX
(J) (P)
STRAIGHT CABLEDPC V11 CABLE
(P) (J)
XCN0 (FOR No. 0 CIRCUIT)/
XCN1 (FOR No. 1 CIRCUIT)
(a)   When you use V. 11 (X.21) interface
MODEM TESTER
DPC
PBX
(J) (P)
STRAIGHT CABLEDPC RS CABLE
(P) (J)
RS0 (FOR No. 0 CIRCUIT)/
RS1 (FOR No. 1 CIRCUIT)
(b)   When you use V. 24/V. 28 (RS-232C) interface 
						

							 NEAX2000 IVS2 Data Interface System ManualPage 58  ND-70924 (E), Issue 1.0
CHAPTER 4 OPERATION TEST
DPC Loopback Test
(4) Set the attributes of modem tester (transmission rate, etc.).
(5) To confirm whether the data is transmitted correctly, send the PN Pattern 9 (511 Pattern) 
from the modem tester.
(6) Count bit errors on the modem tester for 1 minute.
 If bit errors do not occur, the cable connection between DPC card and modem tester is 
normal.
(7) If bit errors occur, check the cable connection, and replace the DPC card.
(8) After this test, set all the SW1-1 through SW1-4 on the DPC card to OFF. 
						

							CHAPTER 4 OPERATION TEST
DPC Loopback Test
NEAX2000 IVS2 Data Interface System Manual    
ND-70924 (E), Issue 1.0   Page 59
DPC Loopback 2 Test
After you complete the DPC Loopback 1 Test, do the following steps.
(1) Set the SW1 on the DPC card as shown below.
(2) Confirm whether the LB02 lamp (for No. 0 circuit) or the LB12 lamp (for No. 1 circuit) on the 
DPC card lights.
 If the LB02 lamp or the LB12 lamp does not light, check the switch settings on the DPC card 
and the system data assignment.
(3) Connect a modem tester to the DPC card as shown in Figure 4-2  “Connection of Modem 
Tester.”
(4) Set the attributes of modem tester (transmission rate, etc.).
(5) To confirm whether the data is transmitted correctly, send the PN Pattern 9 (511 Pattern) 
from the modem tester.
(6) Count bit errors on the modem tester for 1 minute.
 If bit errors do not occur, the DPC card is normal.
(7) If bit errors occur, check the system data assignment, and replace the DPC card.
(8) After this test, set all the SW1-1 through SW1-4 on DPC card to OFF.
For No. 0 CircuitFor No. 1 Circuit
4 
3 
2 
1 OFF
ON SW1
4 
3 
2 
1 OFF
ON SW1
: POSITION TO BE SET 
						

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CHAPTER 4 OPERATION TEST
Other Loopback Tests
OTHER LOOPBACK TESTS
Two additional forms of loopback test are shown in Figure 4-3.
Figure 4-3  Other Loopback Tests
V.110DPC DTI local loopback
PBX
DTI
DTI hard-wired loopback
Set DTI in local
loopback.
DTI
TA
TB
RA
RB
On the MDF, connect 
transmit leads to the 
Receive leads to test 
all portions of the DTI.
V.110DPC
MODEM TESTER
MODEM TESTER 
						

							CHAPTER 4 OPERATION TEST
Inter-Office Digital Data Transmission Test
NEAX2000 IVS2 Data Interface System Manual    
ND-70924 (E), Issue 1.0   Page 61
INTER-OFFICE DIGITAL DATA TRANSMISSION TEST
This test is the inter-office digital data transmission test using modem testers. After you complete
the loopback tests, do the following steps.
(1) Connect modem testers to the both PBXs as shown in Figure 4-4.
Figure 4-4  Inter-Office Digital Data Transmission Test
(2) Set the attributes of both modem testers (transmission rate, etc.).
NOTE:If both the attributes do not match, this test is not available.
(3) To confirm whether the data is transmitted correctly, send the PN Pattern 9 (511 Pattern) 
from the modem testers.
(4) Count bit errors on the modem testers for 1 minute.
 If bit errors do not occur, the inter-office digital data transmission is normal.
(5) If bit errors occur, check the following items.
 System data assignment
DTI card
 PCM digital line
 Opposite PBX
PBXPBX
MODEM TESTER
DTIDPCDTIDPC
MODEM TESTER 24/30 CHANNEL
PCM DIGITAL LINE
NOTE 1:For details of cable connection between the DPC card and the modem tester, see
Figure 4-2 “Connection of Modem Tester.”  
NOTE 2:The modem tester is locally provided.
NOTE 1NOTE 1 
						

							NEAX2000 IVS2 Data Interface System Manual    
ND-70924 (E), Issue 1.0   Page 63
CHAPTER 5
CIRCUIT CARD
INFORMATION
This chapter explains the mounting location, the meaning of lamp
indications, and the method of switch settings of each circuit card for
the Data Interface system. 
						

							 NEAX2000 IVS2 Data Interface System ManualPage 64  ND-70924 (E), Issue 1.0
CHAPTER 5 CIRCUIT CARD INFORMATION
How to Read This Chapter
HOW TO READ THIS CHAPTER
This chapter explains each circuit card used in this system for the following items. Explanations
are given in the alphabetical order of the circuit card names within each circuit card category
(Control, Application Processor, and Line/Trunk).
(1) Locations of Lamps, Switches, and Connectors
The locations of lamps, switches, and connectors of each circuit card are shown by a face 
layout.
(2) Lamp Indications
The name, color, and functions of each indicator lamp equipped on each circuit card are 
described in a table.
(3) Switch Settings
The name, settings, and functions of each switch equipped on each circuit card are 
described in a table.
Each switch setting table has a “CHECK” column. Make necessary entries in the CHECK column
during and/or after the system installation and maintenance, and use each table as a reference
for subsequent system maintenance and operations.