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

							5. System Startup
and Data5-13
DCI-A AND DCI-B MODULES
Installing a DCI (Figures 5-7 through 5-11)
1. Turn the telephone upside down and remove the speed dial
card.
2. Remove the four screws that secure the telephone base and
remove the base.
Figure 5-7  REMOVING THE TELEPHONE BASE3. Peel the adhesive backing off of the DCI spacer and attach it
as shown to the DCI Module. This spacer keeps small objects
from falling into the telephone.
Figure 5-8  INSTALLING THE SPACER
Continued on next page . . .
92 - 124AB
92 - 124AC 
						

							5. System Startup
and Data
5-14
DCI-A AND DCI-B MODULES
Installing a DCI (cont’d)
4. Using a flat-blade screwdriver, carefully pry out the filler
piece on the telephone base. This will expose the cutout in
the base.
5. Plug the DCI into the connector in the telephone’s upper
housing and secure in place with the two screws provided
(Figure 5-10).
6. Reinstall the telephone base and secure it with the four
screws. Make sure the DCI is correctly oriented in the cutout
in the telephone base.
7. Connect the data device to the DCI.
Figure 5-9  REMOVING THE FILLER PIECE
92 - 124AA 
						

							5. System Startup
and Data5-15
DCI-A AND DCI-B MODULES
Figure 5-10  INSTALLING THE DCIFigure 5-11  TYPICAL DCI DATA INTERFACE/SMDR
RECORDING INSTALLATION
92 -168DA66M1-50
Station BlockPC
625
Modular
Jack
Station
Cable
25-Pair
Cable
48 FU
Filter4-Conductor
Line Cord RS-232-C
Cable
92 - 124A
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 Flow
(        output or         input)
DTE
(PC or 
Printer) Description
RS-232-C Pin Out Information
RS-232-C
Connector
DCD
RXD
TXD
DTR
DSR
RTS
CTS
GND 8
3
2
20
6
4
5
7 
						

							5. System Startup
and Data
5-16
3-DCI MODULE
3DCI Description
The 3-DCI is a stand-alone three port data module (DCE ports)
which provides three RS-232-C serial ports to network three
different data devices. Each data device connected to the 3-DCI
uses one system data port (max. 144).
The 3-DCI also provides remote maintenance capability and alarm
reports for the system if connected to a modem.  When connected
to a terminal, port identification, PCB status, and system configu-
ration data is provided.  One 3-DCI (or a DCI-A/B) should be
installed per system for maintenance and alarm purposes.
The 3-DCI module derives its power and signaling from a
16DSTU extension circuit.  The 3-DCI provides one power sta-
tus LED and three port status LEDs.
3DCI-A to 16DSTU Cabling (Figure 5-12)
1. Punch down one pair 24 AWG station cable for each the 3-
DCI-A to a cross-connect block.
2. Run one-pair cross-connect from the cross-connect block to
the extension (B) block.
3. Connect the B blocks 25-pair cable to the a 48FU filter unit.
4. Install bridging clips on the B block.
Figure 5-12  INSTALLING A 3-DCI
PORT 1 PORT 2 PORT 3
LINEFG
9200 - 134
DB25P
DTE
To Data 
DeviceDB25P
DTE DCE 14AWG Stranded
To Verified Earth Ground
To 16 DSTU
Station Port 
						

							5. System Startup
and Data5-17
3-DCI MODULE
Connecting a 3-DCI-A to a Digital Extension
Circuit(Figures 5-13)
1. Install a modular jack for the 3-DCI-A.  The modular jack
should be within six feet of the 3-DCI-A.
2. For each 3-DCI-A, run one-pair 24 AWG station cable from
the cross-connect block to a modular jack.  Ground the
unused pair.
3. Terminate the extension leads to GRN/RED of the modular
jack. Terminate the unused leads to the jack.4. Install a data device into any one of the 3-DCI-A serial ports.
5. Ground the 3-DCI to a known earth ground.
6. Program the 3-DCI-A. Refer to Data Communications Interface
in the Software Manual for programming instructions.
Continued on next page . . . 
						

							5. System Startup
and Data
5-18
3-DCI MODULE
Figure 5-13  TYPICAL 3-DCI-A DATA NETWORK
PCSerial PrinterModem
66M1-50
Station Block625
Modular
Jack
Station
Cable
25-Pair
CableRS-232-C
Cable
(50’ max)RS-232-C
Cable (50’ max)
DCE to DCE
Adaptor
(P/N 88079)
48 FU
16DSTU Filter
Cable4-Conductor
Line Cord3DCI
92000 - 168C
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 Flow
(        output or         input)
DTE
(PC or 
Printer) Description
RS-232-C Pin Out Information
RS-232-C
Connector
DCD
RXD
TXD
DTR
DSR
RTS
CTS
GND 8
3
2
20
6
4
5
7 
						

							6. Specifications
and Parts6-1
Section 6, SPECIFICATIONS AND PARTS LIST
In this section . . .
Page
System Specifications  . . . . . . . . . . . . . . . . .6-2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Environmental Requirements . . . . . . . . . . . . . 6-2
Power Requirements . . . . . . . . . . . . . . . . . . . . 6-2
Site Requirements. . . . . . . . . . . . . . . . . . . . . . 6-2
Environmental Specifications . . . . . . . . . . . . . 6-3
Electrical Specifications . . . . . . . . . . . . . . . . . 6-3
External Control Relay Contact . . . . . . . . . . . 6-3
Mechanical Specifications . . . . . . . . . . . . . . . 6-3
Cabling Requirements . . . . . . . . . . . . . . . . . . 6-3
Maximum Cable Runs . . . . . . . . . . . . . . . . . . 6-4
FCC Registration Information. . . . . . . . . . . . . 6-4
Federal Communications Commission DID
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
List of Components  . . . . . . . . . . . . . . . . . . .6-6 
						

							6. Specifications
and Parts
6-2
SpecificationsTalk Timeslots (Intercom/line) non-blockingAnalog trunks (CO/PBX lines) 128*Digital key telephones 256* combined
Analog single line telephones 240* total to
DSS Console 8* 256DCI-A/B 144* one reqd
3DCI-A adaptors 48* per system3ACI-A adaptors 64* 256Alarm Circuits 16*
Door Chime Box/Door Unlock Contacts 8 combined total
Internal Page Zones 128 32 per tenant
External Page Zones 8Dial Tone Detector Circuits 128* combined total
DTMF Receiver Circuits 128* to 128Tenants 4Universal PCB slots
Main Cabinet 1-7
(Not including CPU slot)
1st Expansion Cabinet 9-16
2nd Expansion Cabinet 17-25* NOTE: Maximum capacities above are determined by maximum PCB configuration
allowed.  When installing single line sets, DISA, or tie lines, CDTU-A/B circuits must
be allocated for DTMF receivers. To install single line sets with CO/PBX line access,
or when installing immediate-start tie lines, CDTU-A/B circuits must be allocated for
dialtone detection.
Environmental Requirements
Meeting established environmental standards maximizes the life
of the system.  Refer to the Standard Practices Manual for fur-
ther information.  Be sure that the site is not:
1. In direct sunlight or in hot, cold, or humid places.
2. In dusty areas or in areas where sulfuric gases are produced.
3. In places where shocks or vibrations are frequent or strong.
4. In places where water or other fluids comes in contact with
the main equipment.
5. In areas near high-frequency machines or electric welders.
6. Near computers, telexes, microwaves, air conditioners, etc.
7. Near radio antennas (including shortwave).
Power Requirements
A dedicated 110 VAC 60 Hz circuit located within 7 feet of the
Main Cabinet Power Supply is required.
Site Requirements
The system must be floor-mounted.  Brackets secure each cabi-
net to a wall.
SYSTEM SPECIFICATIONS 
						

							6-3
6. Specifications
and Parts
SYSTEM SPECIFICATIONS
Environmental Specifications
Temperature Temperature
Cabinet and Keysets 0oto 40
oC Door Chime Box -20
oto 60
oC
(-4
oto 140
oF) (32
oto 104
oF)
Humidity Humidity
20 to 80% non- 20 to 80% non-
condensing condensing
Electrical Specifications External Zone Paging
Power Supply: 110 VAC +/-10% Output Impedance: 600 OHMs
@ 57/63H +/- 1Hz
dedicated 15 Amp circuit
Power
Requirements: 75 VA to 6A Main Cab Maximum Output: + 3 dBM
GroundingRequirements: No. 14 AWG copper wireExternal Control Relay ContactMaximum Load: 60mA @ 30VDC Maximum Initial
10mA @ 90VDC Contact Resistance: 50 mOHMS
Mechanical SpecificationsType of Equipment Width Depth Height WeightMain Cabinet 23 1/4 13 1/4 26 1/2 66 lbs
Expansion Cabinet 23 1/4 13 1/4 15 3/4 44 lbs16/32 Button Keyset 8 5/8” 9 3/8” 3 1/4” 2 lbs 2 oz
Super Display 8 5/8” 9 3/8” 3 7/8” 2 lbs 8 oz
Digital Single Line 6 3/4” 8 5/8” 3 3/4” 1 lb 7 oz
DSS Console 7 13/16” 8 7/8” 2 3/4” 1 lb 6 oz
Door Box 4 1 1/2 5 3/163-ACI-A, 3-DCI-A. 9 3/8 7 3/8 1 1/4 3 lbs& 2-OPX ModuleCabling Requirements
1. Do not run station cable in parallel with the AC source,
telex, or computer, etc.  If the cables runs are near cable runs
to those devices, use shielded cable with grounded shields or
install the cable in conduit.
2. When cables must be run on the floor, use cable protectors.
3. Cable runs for key telephones, single line telephones, Door
Chime Boxes, 3DCI-A adaptors, and 3ACI-A adaptors must
be a dedicated, isolated cable pair.
4. The Telco RJ21X and cross-connect blocks should install to
the the right of the Main Cabinet. Extension blocks and
cross-connect blocks should be installed to the left of the
Main Cabinet. 
						

							6. Specifications
and Parts
6-4
SYSTEM SPECIFICATIONS
Maximum Cable RunsDevice Cable type Cable run length (ft) NotesKey Telephone 2-wire 26 AWG 1300
2-wire 24 AWG 2000
2-wire 22 AWG 2600Single line 2-wire 26 AWG 13,100 at constant 20 Ma
telephone 2-wire 24 AWG 21,000 at constant 20 Ma
2-wire 22 AWG 34,750 at constant 20 MaSingle line 2-wire 26 AWG 6,500 at constant 35 Ma
telephone 2-wire 24 AWG 10,500 at constant 35 Ma
2-wire 22 AWG 17,400 at constant 35 Ma3DCI-A adaptor 2-wire 26 AWG 1300
2-wire 24 AWG 2000
2-wire 22 AWG 26003ACI-A adaptor 2-wire 26 AWG 1300
2-wire 24 AWG 2000
2-wire 22 AWG 2600Door Chime Box 2-wire 26 AWG 200
2-wire 24 AWG 330
2-wire 22 AWG 550
FCC Registration Information:
Model: 384i
Manufacturer: Nitsuko America
Load number (DOC) 20
FCC Part 15 Registration: Class A
Sample FCC Registration Number: 1ZDTHA-65325-MF-E
(Refer to the label on the Main Cabinet for FCC Registration number).
Reg. MTS/WATS Mfrs. Port Ringer SOC Network
Status Interfaces Identifier Eq. Number JacksOriginal 02LS2 4ATRU-LS1 0.9B (ac); --- RJ21X
0.1 (dc)Original 02LS2 8ATRU-LS1 0.9B (ac); --- RJ21X
0.1 (dc)Original 02GS2 8GSAU-A1 4.0B (ac) --- RJ21XOriginal 02RV2-T 4ATRU-LD1 0.0B AS.2 RJ21XReg. Analog Private Mfrs. Port --- SOC Network
Status Line Interfaces Identifier --- --- JacksOriginal TL11M 4ATRU-EMI --- 9.0F RJ2EXFederal Communications Commission DID Requirements
This equipment must operate in a manner that is not in violation
of Part 68 rules.  This equipment returns answer supervision to
the Public Switched Network when the DID trunk is: (1)
answered by the called station; (2) answered by the attendant;
(3) routed to a recorded announcement that can be administered
by the CPE user; (4) routed to a dial prompt.