Electra Elite
Issue 6
System Hardware Manual
9 - 3
3.2.3
Initialization Check
To determine if the system is initializing correctly, only the
Basic KSU, CPUB( )-U10 ETU, one ESI(8)-U10 ETU,
and terminals should be installed on the system. After
initialization, all the terminals assigned to the ESI(8)-U10
ETU can be used for internal calls to one another. (By
default, these stations are assigned station numbers
100~107).
3.3
System Initialization
After the steps described in
3.2 Before Initializing
are performed
and verified, the entire system should be initialized.
With power OFF, all interface and option cards can be installed in
the basic KSU. The technician can then power up the system to
perform a First Initialization. After the initialization, each station
display shows default time and date indications.
For example:
12:00 AM WED 1
Table 9-1 Voltage Measurement
Voltages
Tolerance Measuring
Points
ESI(8)-U10 ETU
+5V
–-24V
+5 ± 0.25V
–24 ± 0.25V
ESI(8)-U10
TP1 +5V
TP2 GND
TP3 –24V
AC Voltage (117 Vac)
Line to Neutral
Line to Conduit Ground
Neutral to Conduit Ground
117 Vac ± 15%
117 Vac ± 15%
.05 Vac (maximum)
AC Terminal Strip
Line L to N
Line L to G
Line N to G
Ring Generator (SLT)
70 ~ 120 Vac @ 20 Hz *
Across Tip and Ring of
Ringing SLT
CO Line
Off-hook line current
25 ~ 50 mA
In series with Tip side of the
CO line at the MDF
* Ring voltage may be lower if the meter measures only 60 Hz signals.
Summary of Contents for Electra Elite 192
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Page 74: ...Issue 6 Electra Elite 1 22 Introduction ...
Page 96: ...Issue 6 Electra Elite 2 22 System Specifications ...
Page 104: ...Issue 6 Electra Elite 3 8 Hardware Requirements THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 213: ...Electra Elite Issue 6 System Hardware Manual 5 67 Figure 5 39 FMS 8 U10 ETU ...
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Page 368: ...Issue 6 Electra Elite A 4 Glossary of Abbreviations THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 369: ...SYSTEM HARDWARE MANUAL NEC America Inc Issue 6 Series 6000 192 ...