Issue 6
Electra Elite
5 - 46
Installing Electronic Telephone Units
SW2 Position 2 LED Channel Busy Indications are as
follows:
LED 1
Channel 13
LED 2
Channel 14
LED 3
Channel 15
LED 4
Channel 16
LED 5
Channel 17
LED 6
Channel 18
LED 7
Channel 19
LED 8
Channel 20
LED 9
Channel 21
LED 10
Channel 22
LED 11
Channel 23
LED 12
Not Used
4.8.5
Alarm Conditions
A brief description of each alarm condition referred to
under the SW2, position 0 alarm indications is given
below.
Layer 1 Status
LED Lights red when layer 1 is active. The LED is
off when layer 1 is inactive.
Controlled Slip indication (SLIP)
When the difference between the timing of a
synchronous receiving terminal and the received
signal exceeds the buffering ability of the
synchronous terminal, the LED lights red.
Remote Alarm Indication (RAI) Detection
When RAI is received the LED lights red.
Loss of Frame (LOF) Condition Detection
When two of the four or five framing data bits
received are in error, the LED lights red.
Alarm Indication Signal (AIS) Detection
When the system is receiving an Alarm Indication
Signal from a PRT trunk, the LED lights red.
Summary of Contents for Electra Elite 192
Page 2: ...SYSTEM HARDWARE MANUAL Stock Number 750363 Issue 6 Series 6000 192 ...
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Page 10: ...Regulatory Information ...
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Page 52: ...Issue 6 Electra Elite xxxii List of Tables THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 73: ...Electra Elite Issue 6 System Hardware Manual 1 21 THIS PAGE INTENTIONALLY LEFT BLANK ...
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 ...
Page 336: ...Issue 6 Electra Elite 7 54 Installing Optional Equipment THIS PAGE INTENTIONALLY LEFT BLANK ...
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 ...