Nitsuko 24i/28i/124i/384i Hardware Manual

5. System Startup
and Data5-3
PORT IDENTIFICATION
Identifying Port Location
Port information such as PCB type, number of installation (ID),
port numbers, PCB status, and individual port status can be
derived from the system.  To obtain a System Report containing
PCB information, a DCI must be connected to the system and
equipped with a terminal.  
Running program 0007 in MAINTENANCE OPTIONS prints a
system PCB report. Refer to Program 0007-System Report Port
Setupin the Software Manual.The following is a...

5. System Startup
and Data
5-4
SYSTEM START-UP
System Start-up
You can now power up the system and briefly check its opera-
tion.  Before proceeding, be sure that:

The common equipment is installed correctly.


All extensions are cabled correctly.


All earth ground and telco connections are installed correctly.


PCBs are configured, equipped, and strapped correctly.


The ferrite beads are installed.
Powering up the System
1. Install the CPRU in the CPU slot and one 16DSTU in slot 1.
PCBs for slots...

5. System Startup
and Data5-5
SYSTEM START-UP
Initial Programming (Figure 5-1)
Entering the Programming Mode
Enter the system programming mode at extension 301:
1. Press CALL1.  (You hear dialtone).
2. Dial # * # *.
3. Dial the system password.
4. Press HOLD.
Figure 5-1  TELEPHONE KEY LAYOUT
92 - 155DC
CHECK CLEAR1234567
9
1710
1811
1912
2013
2114
2215
2316
248
2
5
8
0 1
4
7
3
6
9#
CALL 2 CALL 1
DND
HOLD LND DIAL
MIC FLASH
SPK
VOLUME CONF (TRF)MW 

5. System Startup
and Data
5-6
SYSTEM START-UP
Setting Up Extension Circuit Types
Run program 0004 to automatically set up extension circuit types.
Refer to the Software Manual for programming information.
1. Dial 0004.
2. Press HOLD.
3. When you see, Set UP? (Yes:1), dial 1.
4. Press HOLD twice.
Saving and Backing Up Your Configuraton
When you are done programming, be sure to save the data to
disk.Use the extra disk shipped with your system to make an
additional backup copy.
1. Press DC.  You see, Data...

5. System Startup
and Data5-7
DATA OVERVIEW
Data Communications Description
The system provides up to 144 data device interfaces for data
communications. Using data devices allows a network to share
a limited number of business resources such as modems, print-
ers, and PCs.  The systems DCI devices can switch asynchro-
nous 
RS-232-C data at speeds from 300 to 19.2K.
Data Device Description (Figure 5-2)
There are three types of data devices:
The DCI-A is a single port data module that provides a serial...

5. System Startup
and Data
5-8
DATA OVERVIEW
Physical Ports and Software Ports
DCIs use physical hardware ports and software ports.
Hardware ports for a DCI-A or DCI-B use the number corre-
sponding to the port where the device is physically connected.
Software ports are used during system programming.  The soft-
ware port (1-144) depends on the installation order set in
Program 0005.
For most installations, assign DCI Order 1 to the first DCI Module
installed and DCI Order 144 to the last DCI installed....

5. System Startup
and Data5-9
DATA OVERVIEW
3-DCI Port Assignments (Figure 5-3)
Figure 5-3 below shows typical 3DCI-A port assignments.
Figure 5-3  TYPICAL 3DCI-A PORT ASSIGNMENTS
Non-dedicated Modem Pooling Network 
(Figure 5-4)
The illustration on the following page shows a typical data
communications network with a 3DCI-A connected to a
16DSTU extension circuit supporting a modem.  The modem is
not equipped with a dedicated CO line, but can access an out-
side line via an 8/16ASTU PCB.
Dedicated Modem...

5. System Startup
and Data
5-10
DATA OVERVIEW
Figure 5-4  NON-DEDICATED MODEM POOLING
66M1-50
Station Block625
Modular
Jack
Station
Cable
Station
Cable 25-Pair
Cable
25-Pair
Cable625
Modular
JackRS-232-C
Cable
(50’ max)
DCE to DCE
Adaptor
(P/N 88079)
120V AC
Outlet
Power
Supply
Modem
48 FU
48 FU
8/16ASTU 16DSTU Filter
Cable
Filter
Cable4-Conductor
Line Cord
4-Conductor
Line Cord3DCI
66M1-50
Station Block
92000 - 168A
25-Pin RS-232-C
Connector
13 12 11 10 9 8 7 6 5 4 3 2 1 
25 24 23 22 21 20 19 18 17 16...

5. System Startup
and Data5-11
DATA OVERVIEW
Figure 5-5  TYPICAL DEDICATED MODEM POOLING/REMOTE
MAINTENANCE INSTALLATION
66M1-50
Station Block625
Modular
Jack
Station
Cable
25-Pair
CableRS-232-C
Cable
(50’ max)
Dedicated 
Modem
CO Line DCE to DCE
Adaptor
(P/N 88079)
120V AC
Outlet
Power
Supply
Modem
48 FU
16DSTU Filter
Cable4-Conductor
Line Cord3DCI
92000 - 168B
25-Pin RS-232-C
Connector
13 12 11 10 9 8 7 6 5 4 3 2 1 
25 24 23 22 21 20 19 18 17 16 15 14
DCE
(3-DCI, DCI-A
or Modem) Direction of Signal...

5. System Startup
and Data
5-12
DCI-A AND DCI-B MODULES
DCI-A and DCI-B Description (Figure 5-6)
The DCI is a single port data module (DCE port) installed in a
multibutton telephone. The DCI can switch data at speeds from
300 to 19.2K baud. Refer toData Communications Interfacein the
Software Manual for detailed Data Communications parameters.
The DCI also provides remote maintenance capability and alarm
reports for the system if connected to a modem.  When connected
to a terminal, port identification,...