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...

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...

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...

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...

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...

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
(...

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...

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...

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...

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....