1-1
The 4120 Network Processing Unit (NPU) is a node on a 4120 Network used for
annunciating and controlling the points contained within the network. A
touchscreen and membrane keys are provided for operating the NPU. Figure 1-1
shows an NPU with Voice Capability.
ALL
SPEAKERS
TALK
AUDIO
CONTROL
PHONE
CONTROL
ANSWER HOLD
CALL
SILENCE
EMERGENCY OPERATING INSTRUCTIONS
OPERATE PANEL FROM KEYBOARD
OR TOUCHSCREEN DISPLAY
4120
N
ETWORK
P
ROCESSING
U
NIT
DISPLAY CONTRAST
• PRESS "ACK" LOCATED UNDER FLASHING INDICATOR
• SYSTEM INDICATOR FLASHING, TONE ON
• REPEAT OPERATION UNTIL ALL REPORTS ARE
ACKNOWLEDGED.
• PRESS "ALARM" SILENCE
• PRESS "SYSTEM RESET"
• PRESS "ACK" TO SILENCE TONE DEVICE
• PRESS UTILITY CONTROL
• PRESS DESIRED CONTROL FUNCTION ON
TOUCHSCREEN DISPLAY
• PRESS "SITE INFO"
ALARM • SUPERVISORY • TROUBLE CONDITION:
TO ACKNOWLEDGE:
TO SILENCE ALARM SIGNALS:
TO RESTORE SYSTEM TO NORMAL:
TO PERFORM CONTROL FUNCTIONS:
TO DISPLAY SITE SPECIFIC INFORMATION:
FIRE
ALARM
SYSTEM
TROUBLE
SIGNALS
SILENCED
POWER
ON
PRIORITY 2
ALARM
SYSTEM
SUPERVISORY
ALARM
ACK
SUPV
ACK
TBL
ACK
ALARM
SILENCE
SYSTEM
RESET
ALARM
ACK
UTILITY
CONTROL
SITE
INFO
TO PAGE ALL AREAS
AUDIO CONTROL PHONE CONTROL
READY
TO TALK
INCOMING
CALL
TO SELECT SPEAKERS/AUDIO TO ANSWER/CALL SELECTIVE TO ANSWER INCOMING CALL
TO PAGE ALL AREAS
TO PAGE ALL AREAS
Instructions to operate are found here
Instructions to operate are found here
Details vary with each operation
Instructions to operate are found here
Instructions to operate are found here
Details vary with each operation
Instructions to operate are found here
Instructions to operate are found here
Details vary with each operation
Instructions to operate are found here
Instructions to operate are found here
Figure 1-1. NPU with Voice Capability
This publication provides instructions for operating the 4120 Network
Processing Unit.
Refer to the following table for information on a specific topic.
Topic See Page #
Requirements for Operation 1-2
Logging On to the System 1-3
Logging Off 1-5
Chapter 1
Overview
Introduction
In this Chapter
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