NEC Ds2000 Hardware Manual Instructions Manual

1. Installing the
Cabinet
1-19
SYSTEM CONFIGURATION - U SLOT
U Slot Default Settings
If you have a U Slot system (software version 02.**.**), fol-
lowing are the default configurations. If you have a fixed slot
system (software 01.**.**), turn to page 1-20.
4 Slot Cabinet with CPU P/N 80025
Default configuration: 16 trunks x 32 extensionsSlot CN1 = 16 DSTU PCB (Extensions 300-315)
Slot CN2 = 16 DSTU PCB (Extensions 316-331)
Slot CN3 = 8 ATRU PCB (Trunks 1-8)
Slot CN4 = 8 ATRU PCB (Trunks 9-16)

4 Slot...

1-20
SYSTEM CONFIGURATION - FIXED SLOT
Fixed Slot Configuration Guidelines
Fixed Slot systems use software version 01.**.**. The maxi-
mum configuration of your fixed slot system is 16 trunks and
32 extensions. Also see Where to Install the PCBs in your Fixed
Slot Systemon page 2-5.
Load factor in your fixed slot system is an issue only if you
have DSS Consoles and 2-OPX Modules installed (see the
System Load Factor Calculationschart on page 1-18).
Exceeding the load factor will cause your system’s
power...

2. PCB Installation
2-1
Section 2, PCB INSTALLATION AND STARTUP
In this section . . .
Page
Installing PCBs 
(cont’d)
Analog Trunk (8ATRU and 4ATRU) PCB . . 2-11
8 Circuit Caller ID Daughter Board . . . . . . . 2-12
4 Circuit Caller ID Daughter Board . . . . . . . 2-14
Connecting Blocks  . . . . . . . . . . . . . . . . . .2-16
Working with 8-Pin Jacks . . . . . . . . . . . . . . . 2-16
Punching Down the Cables . . . . . . . . . . . . . . 2-16
Making your own Cables . . . . . . . . . . . . . . . 2-16
In...

PCB LOCATION - U SLOT
2-2
Where to Install the PCBs in your U Slot System
(Figures 2-1 and 2-2)
Review System Configuration - U Sloton page 1-17 before
installing any PCBs. 
When installing PCBs in a U Slot 4 slot system, follow
Figure 2-1. You mustinstall a 16DSTU in slot CN1.

When Installing PCBs in a U Slot 8 slot system, follow
Figure 2-2. You mustinstall a 16DSTU in slot CN1.
Item Description Location Max.CPU Central Processing Unit CN0 1
16DSTU 16 Digital Stations CN1 1All other PCBs CN2-CN8 7...

2. PCB Installation
2-3
PCB LOCATION - U SLOT
Figure 2-1  4 SLOT PCB LOCATION
Power Supply
CPU
16DSTU (300-315)
16DSTU (316-331)
16DSTU (332-347)
16DSTU (348-363)
80000 - 58
P/N 80005/A
P/N 80025A
P/N 80021/A
Power Supply
CPU
16DSTU (300-315)
16DSTU (316-331)
8ATRU (1-8)
8ATRU (9-16)
80000 - 58
P/N 80005/A
P/N 80025
P/N 80021/A
P/N 80021/A
P/N 80011/A Ext. 401-408
P/N 80011/A Ext. 409-416
Default U Slot
setup with CPU
P/N 80025
Delete this slot!
Delete this slot! Delete this slot!
Default U Slot
setup...

PCB LOCATION - U SLOT
2-4
Power Supply
Power Supply (if required)
Power Supply (if required)
CPU
16DSTU PCB (300-315)
16DSTU PCB (316-331)
16DSTU PCB (332-347) 16DSTU PCB (348-363) 16DSTU PCB (364-379)8ATRU PCB (1-8) 8ATRU PCB (9-16)8ATRU PCB (17-24)
80000 - 59
P/N 80005A
P/N 80005A
P/N 80005A
P/N 80025A
P/N 80021A
P/N 80021AP/N 80021A P/N 80021A P/N 80021AP/N 80011AExt. 401-408 Ext. 409-416Ext. 415-424
P/N 80011A P/N 80011A
!! Important !!
When plugging in PCBs:Use the default assignments shown in the...

2. PCB Installation
2-5
PCB LOCATION - FIXED SLOT
Where to Install the PCBs in your Fixed Slot
System (Figure 2-3)
Maximum Configuration: 16 Trunks
32 Extensions
Follow the chart below and Figure 2-3 when installing PCBs.
Item Description Location Max.CPU Central Processing Unit CN0 1
16DSTU 16 Digital Stations CN1 and CN2 2ASTU 4 or 8 Analog Stations CN2 1
8ATRU 8 Analog Trunks CN3 and CN4 2
Figure 2-3  FIXED SLOT PCB LOCATION
Power Supply
CPU
16DSTU (300-315)
16DSTU (316-331)
4ASTU (316-319)
8ASTU...

PCB LOCATION - FIXED SLOT
2-6
— For Your Notes — 

2. PCB Installation
2-7
INSTALLING PCBs
Central Processing Unit (CPU) PCB(Figure 2-4)
The CPU provides:The system’s central processing, stored program and memory
for the customer’s site-specific data.PC Card interface.Conference circuits, DTMF receivers and DTMF generators.External music input and on-board synthesized music source.External paging output and associated relay.Real Time Clock
Battery for short term (14 day) backup of the customer’s
site-specific data.
Figure 2-4  CPU PCB
d
on
ul- 

INSTALLING PCBs
2-8
Installing the CPU(Figures 2-5 and 2-6)
CPU PCB installs in the CN0 slot in the Main Equipment Cabinet. To install the CPU PCB:
1. Slide the Mode Switch to
the RUN position (see
Figure 2-5).
2. Insert the battery into the
battery clips.
3. Plug the CPU into slot CN0
(see Figure 2-6).
Refer to Part 4, Installing
Optional Equipmentfor
instructions on connecting the
music source, External Paging
and the auxiliary relay.
Figure 2-5  Setting up the CPU
Figure 2-6  INSTALLING THE CPU
80000...