ND-20292
CHAPTER 5
APRIL, 1990
530.2 Before Initialization 530.3 System Initialization
It is important that the following steps be taken by the After the three steps in 530.2 are completed and
installation technician: checked, the entire system should be initialized.
1. Cable Connections
All wiring for power supplies, RSG, flat cable
connectors, etc., should be checked for solid
connections. Refer to Chapter 2 (Hardware
Installation) of this manual for connection
instructions.
2. AC/DC Power
Check all power with an AC/DC multimeter (see
Table 520-l). It is recommended- that this test be
run with only the TSW-E ( 1, CPU-E ( 1 ETUs, and
1, 2, or 3 MMC-E(s) installed in the CCUs, on two,
three or four cabinet configurations.
With the power off, all the interface and option cards
can be installed in each module as indicated on the job
specification document. It is important to check that
the battery switch on the CPU-E ( 1 ETU is turned off
and all interface and option ETU switches. are on. At
this point the technician can power up the system.
During the power up procedure, each display terminal
will temporarily display INITIALIZE. After the
initialization process, each station display will show
default time and date indication. Example: 12:00
JAN 01 SUN.
3. Initialization Check
To check if the system is initializing correctly, it is
suggested that only Module 1 be powered up with
the CPU-E ( 1, TSW-E ( ) ETUs, and one ESI-E ( 1
ETU with terminals installed. After initialization,
all the terminals assigned to the ESI-E ( 1 ETU
should be able to call each other via intercom.
(These stations by default will be assigned station
numbers lOO- 103. The first two terminals must be
ETE-16D-( ).
It is recommended that a First Initialization (Memory
Block 3D-1) be performed from one of the system
programming stations (first two ESI-E ( ) ports) after
the power up of the system. Refer to Chapter 3 of this
manual.
530.4 After Initialization
Before any programming is attempted, the battery
switch on the CPU-E ( ) ETU should be turned on. This
will prevent all completed programming from being
lost if the system loses power.
Table 500-l
VOLTAGES
Module 1
+ 5 volts
- 5 volts
- 24 volts
Modules 2.3 & 4
+ 5 volts
- 5 volts
- 24 volts
AC Voltage (117 VAC)
Hot to Neutral
Hot to Conduit Ground
Neutral to Conduit Ground
Ring Generator (SLT)
TOLERANCE
+ 5 AI 0.25vo1ts
- 5 f 0.25volts
- 24 + 2.0 volts
+ 5 3~ 0.25 volts
- 5 k 0.25 volts
- 24 f 2.0 volts
117 + lO%VAC
117 & lO%VAC
.05 VAC (MAX.)
70- 120, VRMS @ 20 Hz*
CO Line
Off-hook line current
Module 1.2, 3 & 4
- (PSE-DD-1)
-48 volts input
25to50mA
-48 + Bvolts
MEASURING POINTS
CPU-E ( ) TPl GND
TP2 +5v
TP3 -5v
TP4 - 24V
MMC-E: TPl GND
TP2 +5v
TP3 -5v
TP4 -24V
AC TERMINAL STRIP
L to N
L to G
N to G
Across TIP & RING of any
ringing SLT
In series with TIP side of CO
line at MDF
On the input Terminal Strip
of PSE-DD-1 -48V
60 Hz signals only.
500-2