NEC portrait 824 User Guide
Hardware Manual
82400INS03
This manual has been developed by Nitsuko America. It is intended
for the use of its customers and service personnel, and should be
read in its entirety before attempting to install or program the system. Any comments or suggestions for improving this manual
would be appreciated. Forward your remarks to:
Nitsuko America, Telecom Division
4 Forest Parkway
Shelton, CT 06484
Attention: Manager, Technical Publications
Nothing contained in this manual shall be deemed to be, and this
manual does not constitute, a warranty of, or representation with
respect to, any of the equipment covered. This manual is subject to
change without notice and Nitsuko America has no obligation to provide any updates or corrections to this manual. Further, Nitsuko
America also reserves the right, without prior notice, to make
changes in equipment design or components as it deems appropriate. No representation is made that this manual is complete or
accurate in all respects and Nitsuko America shall not be liable for
any errors or omissions. In no event shall Nitsuko America be liable
for any incidental or consequential damages in connection with the
use of this manual. This document contains proprietary information
that is protected by copyright. All rights are reserved. No part of
this document may be photocopied or reproduced without prior written consent of Nitsuko America.
©1998 by Nitsuko America. All Rights Reserved.
Printed in U.S.A.
Section 1
Installing the Main Cabinets
In this section . . . Page
Installing the Cabinets . . . . . . . . . . . . . . .1-3
Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Before Installing . . . . . . . . . . . . . . . . . . . . . . 1-3
Site Requirements. . . . . . . . . . . . . . . . . . . . . 1-3
Removing the Cover. . . . . . . . . . . . . . . . . . . 1-4
Mounting the Cabinet . . . . . . . . . . . . . . . . . . 1-4
Grounding the Cabinet . . . . . . . . . . . . . . .1-6
Connecting the Ground Wires. . . . . . . . . . . . 1-6
1. INSTALLING THE MAIN CABINET
1-1
1-2
INSTALLING THE CABINET
Unpacking
Unpack the equipment and check it against your equipment lists. Inspect for physical damage.
Have the appropriate tools for the job on hand, including: a test set, a punch down tool and a digital voltmeter .
Before Installing
Make sure you have a building plan showing the location of the common equipment, extensions, the telco
demarcation and earth ground. In addition, the installation site must meet the requirements outlined in the
Standard Practices Manual.
Site Requirements
The common equipment is contained in a wall-mounted
cabinet: the Main Cabinet. Choose a central location for
the cabinet that allows enough space for the equipment
— and provides enough room for you to comfortably
work. The Installation Layout (Figure 1-2 on page 1-5)
shows you
requires.
approximately how much space your system
The common equipment cabinet requires a three-prong
dedicated 117 VAC 60 Hz circuit (NEMA 5-15 receptacle) located within 6 feet of the AC receptacle. You
should install the extension block to the right of the
Main Cabinet. Telco should install the RJ11C to the
left of the Main Cabinet.
1-3
INSTALLING THE CABINET
Top Cover
Base Unit
Screws
9300 0 - 8
Removing the Cover (Figure 1-1)
To make wall-mounting easier, remove the cover on the
common equipment cabinet. This allows you to use the
cabinet as a mounting template.
1. Unscrew the two captive screws on the lower half of
the cabinet cover.
2. Lift up the lower half of the cover — then slide the
cover back slightly to remove it.
Figure 1-1 REMOVING THE COVER
Mounting the Cabinet (Figure 1-2)
1. Using suitable fasteners, mount a Main Distribution
Frame (MDF) plywood backboard in a centrally
located spot.
2. Hold the Main Cabinet against the MDF and mark
all four mounting holes.
3. Drill the marked holes using a 1/8” drill bit.
4. Install two mounting screws (provided) in the top two
holes, leaving about 3/8” shank exposed.
5. Hang the Main Cabinet on the top two screws and
fasten in place.
6. Install the bottom two screws and tighten in place.
1-4
INSTALLING THE CABINET
824 00 - 13
FO
F1
250V
250V
6.3A
6.3A
Figure 1-2 INSTALLATION LAYOUT
1-5
GROUNDING THE CABINET
Connecting the Ground Wires (Figure 1-3)
The cabinet is grounded at the ETH (Earth Ground)
connection.
1. Loosen the lug on the ground connection.
2. Using a piece of 12 AWG stranded copper wire, connect the ETH to the ground connector .
3. Insert 12 AWG stranded copper wire into the
grounding terminal on the outside of the cabinet.
Firmly tighten the connection.
4. Connect the grounding cable to a known earth
ground.
2CO/8STA PCB
82400 - 37
FO
250V
6.3A
F1
250V
6.3A
CPU
ETH
FG
ETH/SG
PFCON
COCN
Grounding
AC Cord
Cable
Screw
Figure 1-3 GROUNDING A CABINET
Now that your cabinet is installed and grounded, go to
Part 2: PCB Installation and Startup.
DO NOT PLUG IN THE CABINET POWER CORD
WITHOUT FIRST INSTALLING THE PCBS.
1-6
Section 2
PCB Installation and Startup
In this section . . . Page
PCB Location . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Where to Install the PCBs . . . . . . . . . . . . . . . . . . .2-3
Installing PCBs . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Central Processing Unit (CPU) PCB . . . . . . . . . . .2-4
Expansion (2CO/8STA) PCB . . . . . . . . . . . . . . . .2-6
Ring Generator PCB . . . . . . . . . . . . . . . . . . . . . . .2-7
Auxiliary PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Power Failure (4 PF XFER) PCB . . . . . . . . . . . . .2-9
SMDR PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
SMDR RS-232C Cable Assembly . . . . . . . . . . . .2-11
Powering Up the System . . . . . . . . . . . . . . . . .2-12
Power-Up Sequence . . . . . . . . . . . . . . . . . . . . . . .2-12
2. PCB INSTALLATION AND STARTUP
2-1
2-2
Where to Install the PCBs (Figure 2-1)
Maximum Configuration: 8 Trunks
Lithium Battery
CPU
82400 - 35
2 CO/8 STA PCB SMDR PCB or Caller ID PCB
PCB LOCATION
24 Extensions
Auxillary PCB
FO
F1
250V
250V
6.3A
6.3A
RGUCN
PFCON COCN PFSTN SLTCN
COCN
STCN
Ring Generator PCB RS-232-C Jack and Cable Assembly
Figure 2-1 PCB LOCATION
4 PF XFER PCB
2-3
INSTALLING PCBs
82400 - 36
Station 1
Trunk 4
Battery
Trunk 3
Trunk 2
Trunk 1
Station 2
Station 3
Station 4
Station 5
Station 6
Station 7
Station 8
Central Processing Unit (CPU) PCB (Figure 2-2)
Figure 2-2 CPU PCB
The CPU PCB comes already installed in the Main Cabinet.
The CPU provides:
● The system’s central processing, stored program and mem-
ory for the customer’s site-specific data.
● Mode switch for cold (default data) or warm (customer
data) start on power-up.
● Battery for backup of the customer’s site-specific data. Use
only a SONY CR2032 Lithium Battery or equivalent.
Replace the battery when “B” flashes on the display of the
key telephones. The battery’s life is between 3.5 and 7
years - depending on how often the system is powered
down. The more the system’s power is off, the shorter the
battery’s life.
● Connection points for the CO and station DDK connectors.
2-4
INSTALLING PCBs
To prepare the CPU PCB:
1. Slide the Switch-1 (top switch) to the INT (left) position.
This ensures that the system will load the default database on initial power-up.
2. Power the system up.
3. After the system has been powered up for a minimum of
10 seconds, insert the battery into the battery clips.
The printing on the battery should be facing up so that
it is visible when installed.
4. Slide the Switch-1 (top) to the RUN position (to the right).
Note: NEVER move the switch unless the intent is to clear
all programmed memory.
Refer to Part 4, Installing Optional Equipment for instructions on installing Background Music and Music on Hold.
2-5
INSTALLING PCBs
82400 - 19
CPU
2CO/8STA PCB
ETH
Expansion (2CO/8STA) PCB (Figure 2-3)
Figure 2-3 EXPANSION (2CO/8STA) PCB
The Expansion (2CO/8STA) PCB provides DDK connectors
for two additional CO lines and eight additional telephones.
To install a 2CO/8STA PCB:
1. Place the 2CO/8STA PCB on top of the CPU. Align the
EXPCN female connector on the bottom of the 2CO/8STA
PCB over the EXPCN male connector on the PCB below.
Push down firmly on the expansion PCB to ensure that the
EXPCN connectors are firmly together. Using the additional spacers included with the 2CO/8STA PCB, attach
the PCB to the card below.
2. Connect the green earth ground lead terminal to the ETH
screw on the CPU. An earth ground is always required.
3. Refer to Part 3: Installing Extensions and Trunks for
cabling instructions.
4. If installing a second Expansion PCB, simply place the
card over the first PCB and repeat steps 1-3.
5. To install an Expansion PCB if an SMDR or Power Failure
PCB has been previously installed:
2-6
● Power down the system
● Remove the SMDR and/or Power Failure PCB
● Install the Expansion PCB
● Reinstall the SMDR and/or Power Failure PCBs
● Power up the system.
INSTALLING PCBs
82400 - 32
CPU
CPU
RGUCN
Ring Generator
PCB
Ring Generator PCB (Figure 2-4)
Figure 2-4 RING GENERATOR PCB
The Ring Generator PCB provides the ring generator source
when connecting a single line telephone, modem, voice mail,
or answering machine as a system extension. This must be
installed when any single line telephones are used in the system.
To install a Ring Generator PCB:
1. Align the PCB on the left side of the Main Cabinet, below
the power switch. Using the three screws provided, attach
the PCB to the Main Cabinet.
2. Attach the cable from the Ring Generator PCB to the connector labeled RGUCN mounted on the CPU.
2-7
INSTALLING PCBs
Auxiliary PCB (Figure 2-5)
Volume Control
VR3VR4VR1VR2
2CO/8STA PCB
Card Holder
CPU
82400 - 20
Figure 2-5 AUXILIARY PCB
The Auxiliary PCB provides:
● 2-pin DDK connectors for two External Paging Zones.
● 2-pin DDK connectors for two Door Boxes.
● 2-pin DDK connectors for two common-use relay contacts.
● 2-pin DDK connectors for Background Music source.
● 2-pin DDK connectors for Music On Hold source.
To install an Auxiliary PCB:
1. Insert the two card holders (included with the PCB) into
the outer holes on the right-hand side of the Main Cabinet.
2. Insert the Auxiliary PCB into the card holders.
3. Connect the ribbon cable (included with the PCB) to the
Auxiliary PCB and then to the DHUCN connector on the
CPU.
4. Refer to Part 4: Installing Optional Equipment for more
on installing Door Boxes, External Paging Equipment and
Alarm Sensors.
2-8
INSTALLING PCBs
625
Modular
Jack
Single Line
Telephone
BLK
YEL
RED
GRN
BLU-WHT
WHT-BLU
82400 - 18
Nylon Spacer
Metal Spacer
CPU
2CO/8STA PCB
4 PF XFER PCB
PFCON
To CO Connection
on CPU Card
To Telco
Connection
COCN PFSTN SLTCN
PFUCN
Attached Wire
PFUCN
Power Failure (4 PF XFER) PCB (Figure 2-6)
Figure 2-6 POWER FAILURE (4 PF XFER) PCB
The Power Failure (4 PF XFER) PCB provides DDK connectors for four power failure cut through circuits to four single
line telephones.
To install a 4 PF XFER PCB:
1. Place the two nylon spacers included with the 4 PF XFER
PCB in the lower holes in the middle of the CPU (or
2CO/8STA PCB, if installed).
2. Align the 4 PF XFER PCB over the metal and nylon spacers.
3. Using the two metal spacers included with the 4 PF XFER
PCB, attach the PCB to the lower PCB.
4. Refer to Part 4: Installing Optional Equipment for more
on installing Power Failure telephones.
2-9
INSTALLING PCBs
82400 - 17
Set SW1 to the proper baud rate position by
placing the jumper over the pins of the
desired baud rate.
SMDR Jack and
Cable Assembly
Nylon Spacer
SMDR
2 CO/8STA
CPU
SMDR PCB (Figure 2-7)
Figure 2-7 SMDR PCB
The SMDR (Station Message Detail Recording) PCB provides a record of the system’s outside calls. Typically, the
record outputs to a customer-provided printer, terminal or
SMDR data collection device. Use SMDR when you need to
monitor the usage at each extension and trunk.
To install a SMDR PCB:
1. Place the two nylon spacers included with the SMDR PCB
in the upper holes in the middle of the CPU (or 2CO/8STA
PCB, if installed).
2. Align the SMDR PCB over the nylon spacers. Press the
PCB into the connector labeled EXPCN on the CPU or
2CO/8STA PCB.
3. Connect the SMDR jack and cable assembly to the Main
Cabinet base. Insert the other end of the cable into the
RSCN connector on the SMDR PCB.
4. Using an RS-232C cable (Figure 2-8), plug the printer into
the SMDR jack assembly. Set the interface conditions of
the printer as follows:
Word length: 7 bits
Parity bit: Even parity
Stop bit length: 2 bits
2-10
INSTALLING PCBs
SMDR RS-232C Cable Assembly (Figure 2-8)
To connect the SMDR and printer, an RS-232C cable is required.
If you make your own cable, it must be a straight-through cable
connecting pins 2, 3, 6, 7, 8 and 20. Refer to the Figure 2-8.
Note that the cable length should not exceed 50’in length.
25 pin - 25 pin Cable
SMDR Jack
Output Terminal
Pin No.
2
3
6
7
8
20
25 pin - 9 pin Cable
SMDR Jack
RS-232C (25 pin)
13
25
(female)
Description
Receive Data
Transmit Data
Data Terminal Ready
Signal GND
Request To Send
Data Set Ready
RS-232C (25 pin)
13
25
(female)
RS-232C (25 pin)
1
14
1
14
13
25
(male)
Pin No.
RS-232C (9 pin)
1
6
(male)
1
14
2
Receive Data
3
Transmit Data
6
Data Terminal Ready
7
Signal GND
8
Request To Send
20
Data Set Ready
5
9
82400 - 31
Description
Output Terminal
Pin No.
* The other Pins are not used. These Pin conditions are "Open".
Description
2
Receive Data
3
Transmit Data
6
Data Terminal Ready
7
Signal GND
8
Request To Send
20
Data Set Ready
Pin No.
Figure 2-8 RS-232C CABLE ASSEMBLY
Description
3
Transmit Data
2
Receive Data
6
Data Set Ready
5
Signal GND
1
Data Carrier Detect
4
Data Terminal Ready
2-11
POWERING UP THE SYSTEM
Power-Up Sequence
Now that all the PCBs you need are installed, you can powerup the system.
1. Install a surge protector in the AC outlet you intend to use
for system power.
2. Plug the AC power cord for the Main Cabinet into its surge
protector.
System LEDs on Power-Up
PCB LED Status
CPU Processor LED About 5 seconds after power-up,
flashes quickly (red)
2-12
Section 3
Installing Extensions and Trunks
In this section . . . Page
Connecting Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Working With DDK Connectors . . . . . . . . . . . . . . . . . . .3-3
Making Additional DDK Connectors . . . . . . . . . . . . . . .3-3
Punching Down a DDK Installation Cable . . . . . . . . . . .3-4
Connecting Extensions . . . . . . . . . . . . . . . . . . . . . . . .3-7
Station Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Connecting Trunks . . . . . . . . . . . . . . . . . . . . . . . . . .3-10
Trunk Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10
3. INSTALLING EXTENSIONS AND TRUNKS
3-1
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