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

							4. Optional
Equipment
4-20
EXTERNAL PAGING
External Page Relays Description
Four external dry contact relays are available when a 4PGDU is
installed which can be used to activate ancillary devices (i.e.
door unlock devices). Each Door Chime Box/external page cir-
cuit provides a dry relay contact.
Note:External page relays can be provided by a 3ACI. Refer
to page 4-21 for more on the 3-ACI module.
Door Chime Box /External Page Relay Contacts
(Figure 4-11)
To connect a dry contact relay device to a Door
Chime Box/external page relay:
1. Set a dip switch on the 4PGDU to the DH position for Door
Chime Box control.  Set the dip switch on the 4PGDU to the
PG position for external page control.
2. Terminate one end of a one-pair 24 AWG station cable to the
RLY1 T/R leads on the PGU1 block. (Up to 4 paging zones
can be installed.  Use RLY2-RLY4 T/R leads for other relays).3. Terminate the other end of the station cable to the T/R leads
of the relay sensor.
4. Plug a filter cable into the 48FU.  The ferrite bead is placed
closer to the 48FU filter unit.
5. Plug the other end into the upper connector on the 4PGDU.
6. Install bridging clips to the RLY1 T/R leads on the PGU1
block.
Note: The relay closes when the Door Chime Box/external
page zone is called.  The maximum applied voltage is 24vDC at
.5A for each contact. 
						

							4. Optional
Equipment4-21
3-ACI MODULE
3-ACI Description
The 3-ACI provides three analog ports which can be used for
external Music on Hold source input or external page connec-
tion in any combination.  The 3-ACI also provides a dry relay
for each analog port. The 3-ACI requires one 16DSTU station
circuit for operation. Refer to Analog Communications
Interface in the Software Manual for more details.
Music on Hold
The 3-ACI provides three RCA plugs for external MOH sources
(e.g. tuner, tape deck, CD player, etc.). A dry relay used with a relay
sensor/power supply can be used to turn the MOH source on/off.
External Paging
The 3-ACI allows three external page systems to be connected.
A dry relay used with a relay sensor/power supply can to turn
the paging system on/off.
Contact Closure
The 3-ACI provides a dry relay, and when equipped with a
relay sensor/power supply, closes the relay when the extension
assigned to the 3-ACI software port is dialed.Note:External paging and external relays can also be provided
using a 4PDGU. Refer to External Paging on page 4-17 for more
.
Installing an External Music on Hold Source
(Figures 4-12 and 4-13)
1. Connect the 3-ACI to a 16DSTU extension circuit using the
modular connector provided.
2. Connect a music source to the RCA jack on the 3-ACI PCB.
Note:MOH volume is adjusted from the MOH source.
Figure 4-12 INSTALLING A 3-ACI MOH/BGM SOURCE
PORT 1 PORT 2 PORT 3
LINEIN IN INOUT OUT OUTCTL CTL CTL
9200 - 166
To DSTU
PCB PortSoftware
Port 3Software
Port 2Software
Port 1
Physical
Port 1 
						

							4. Optional
Equipment
4-22
3-ACI MODULE
Installing an External Paging System 
(Figures 4-12 and 4-13)
1. Connect the 3-ACI to a 16DSTU extension circuit using the
modular connector provided.
2. Connect a paging system to the RCA jack on the 3-ACI PCB.
Note:Page volume is adjusted from the paging equipment.
Installing a Dry Contact Closure Device 
(Figures 4-12 and 4-13)
1. Connect the 3-ACI to a 16DSTU extension circuit using the
modular connector provided.
2. Connect a dry contact sensor/power supply to the RCA jack
on the 3-ACI PCB.
3. Connect a device to the power supply side of the relay sensor.
Figure 4-13 INSTALLING BGM/MOH AND EXT PAGING TO
A 3-ACI
AC Outlet
Page Speaker Page
Controller/Amplifier
Page
Audio
Input
Page
Control
PORT 1 PORT 2 PORT 3
LINEIN IN INOUT OUT OUTCTL CTL CTL
9200 - 165
To 16 DSTU
Station Port
RCA PlugRCA PlugMiniature
Phone Plug Miniature
Phone Plug
Bell
625
Modular
Jack
Dry
Contact
Interface
Music Source 
						

							4. Optional
Equipment4-23
REJU RECORDING JACK
REJU Description
A Super Display telephone can be equipped with an REJU
recording jack PCB. The REJU provides an RCA plug allowing
the telephone to be connected to a tape recorder.  The REJU is
equipped with a 5-pin molex connector and a securing screw.
Installing an REJU (Figures 4-14 and 4-15)
1. Turn the Super Display telephone upside down and remove
four screws from each corner of the telephone set. Remove
the upper housing from the lower housing.
2. Lift the upper housing off of the telephone base.
3. On the right side of the telephones lower housing, use a
blunt object to remove the plastic molding (Figure 4-14).
4. Install the REJU with the REJU components facing down
(Figure 4-15).
5. Use the screw supplied with the REJU to secure the PCB to
the lower housing.
6. Insert the REJU modular connector into the RECCN connec-
tor on the telephones ANUI PCB on the upper housing. To
ensure the proper polarity, make sure the red wire is on top.
7. Reassemble the telephone and reinsert the four screws you
removed in step 1.8. Using a standard audio cable with an RCA plug, connect the
recording device to the REJ.
Figure 4-14 REMOVING PLASTIC MOLDING
Continued on next page . . .
92 - 132AA 
						

							4. Optional
Equipment
4-24
REJU RECORDING JACK  SMDRFigure 4-15  INSTALLING THE REJU
Station Message Detail Recording Description
A terminal can be connected to a multibutton telephone
equipped with a DCI-A (serial port) or a DCI-B (parallel port)
for Station Message Detail Recording purposes.  The SMDR
terminal receives data on every incoming and outgoing call in
the system, detailing time of call, class of call, line used, dura-
tion, etc.  Refer to Station Message Detail Recordingin the
Software Manual for more details.
Connecting an SMDR Terminal (Figure 4-16)
1. Install the DCI to a multibutton telephone.  Refer to Section
3, Data Products for specific DCI installation procedures.
2. Install the SMDR recording device according to manufactur-
er instructions.
3. Connect the SMDR recording device to the telephones DCI.
Note:When using a DCI-A, a standard RS-232-C 25-pin cable
terminated with a 25-pin male connector is required.  The DCI is
configured for 2400 baud, 8 bits, no stop bits, no parity checking.
Note:When using a DCI-B, a standard Centronics 14-pin cable
terminated with a 14-pin female connector is required.
92 - 132A
Red Wire
REJU 
						

							4. Complete SMDR programming. Refer to Station Message
Detail Recordingin the Software Manual for more details on
programming SMDR.
4. Optional
Equipment
4-25
SMDR
Figure 4-16  CONNECTING AN SMDR TERMINAL
92 -168EA
SMDR
Data Collection DeviceOR
SMDR PrinterTypical
RS-232-C
Cable RS-232-C
Cable
As requiredDCI-A
1
2
3
4
5
6
7
8
201
2
3
4
5
6
7
8
20
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 
						

							4. Optional
Equipment
4-26
WALL-MOUNT KIT
Wall-Mount Description
You can use a wall-mount to attach any key telephone to a wall.
The wall-mount kit includes a mounting bracket, wall-mount
screws and a handset hanger.
Note:The wall-mount kit currently does not accommodate an
AT&T wall plate.
Installing the Wall-Mount Handset Hanger
(Figure 4-17)
1. Insert the handset hanger in the slot provided beneath the
telephones hookswitch.
2. Remove the plastic insert beneath the hookswitch to expose
the hanger screw hole.
3. Use the machine screw provided to fasten the hanger in
place.
4. Replace the plastic insert.
Figure 4-17  INSTALLING THE HANDSET HANGER
92 - 148A 
						

							4. Optional
Equipment4-27
WALL-MOUNT KIT
Wall-Mounting a Key Telephone (Figure 4-18)
1. Mount the wall-mount kits metal bracket in the desired loca-
tion using the screws provided.
2. Mount the wall-mount kits plastic bracket to the wall-mount
kits metal bracket using the screws provided.
3. Insert the telephones line cord from the 625 modular jack
through the plastic bracket using the clips provided on the
bracket.
4. Place the telephone on top of the plastic bracket on the clips
provided.
Figure 4-18  WALL-MOUNTING A KEY TELEPHONE
To 625 Jack
92 - 147A 
						

							5. System Startup
and Data5-1
Section 5, SYSTEM STARTUP AND DATA
In this section . . .
Page
Data Overview  . . . . . . . . . . . . . . . . . . . . . .5-7
Data Communications Description . . . . . . . . . 5-7
Data Device Description . . . . . . . . . . . . . . . . . 5-7
Physical Ports and Software Ports . . . . . . . . . . 5-8
3-DCI Port Assignments . . . . . . . . . . . . . . . . . 5-9
Non-dedicated Modem Pooling Network . . . . 5-9
Dedicated Modem Pooling Network . . . . . . . . 5-9
DCI-A and DCI-B Modules  . . . . . . . . . . .5-12
DCI-A and DCI-B Description . . . . . . . . . . . 5-12
Installing a DCI . . . . . . . . . . . . . . . . . . . . . . . 513
3-DCI Module  . . . . . . . . . . . . . . . . . . . . . .5-16
3-DCI Description . . . . . . . . . . . . . . . . . . . . 5-16
3-DCI-A to 16DSTU Cabling . . . . . . . . . . . . 5-16
Connecting a 3-DCI-A to a Digital
Extension Circuit . . . . . . . . . . . . . . . . . . . . 5-17
In this section . . .
Page
Powering up and Testing the System  . . . . .5-2
Basic Troubleshooting . . . . . . . . . . . . . . . . . . 5-2
Troubleshooting Lines . . . . . . . . . . . . . . . . . . 5-2
Port Identification . . . . . . . . . . . . . . . . . . . .5-3
Identifing Port Location . . . . . . . . . . . . . . . . . 5-3
System Start-up  . . . . . . . . . . . . . . . . . . . . .5-4
System Start-up . . . . . . . . . . . . . . . . . . . . . . . 5-4
Powering up the System . . . . . . . . . . . . . . . . . 5-4
Initial Programming . . . . . . . . . . . . . . . . . . . . 5-5
Setting Up Extension Circuit Types . . . . . . . . 5-6
Saving and Backing Up Your Configuration . . 5-6
Making Test Calls . . . . . . . . . . . . . . . . . . . . . . 5-6 
						

							5. System Startup
and Data
5-2
POWERING UP AND TESTING THE SYSTEM
Basic Troubleshooting
To troubleshoot extensions:
1. Check and verify extension.  The voltages at the extensions
modular jack should be:
Meter Jack
Lead Terminal Voltages1
Black lead to  . . . . . . .GRN  . . . . . . . . . . . . . .+27 V DC
Red lead to  . . . . . . . . .RED
2. Check and verify programming. Refer to the Software
Manual if necessary.
3. Check and verify extension wiring.
4. Check and verify 48FU filter unit installation.
5. Check and verify extension PCB installation.
Troubleshooting Lines
To troubleshoot lines:
1. Check and verify each line before the system with a test set.
2. Measure loop current on each line with a digital voltmeter.
3. Check and verify programming. Refer to the Software
Manual if necessary.
4. Check and verify line PCB installation.
5. Check and verify CN4/CN5 jumpers, GSAU installation, or
PFTU installation.
6. Check and verify 24FU filter unit installation.
7. Check and verify filter unit cable installation.