Ceasefire INTELLI-SENSE Guide

INSTALLATION, COMMISSIONING
& OPERATING MANUAL FOR
NETWORKING
TI-002324/002325

Networking
This application note describes how install and configure Intelli-Sense Networks.
Installation and Commissioning Manual
CFX-PlusIntelli-Sense

Models, Sales Order Parts:
TI-002325:Standard Network Card
TI-002324:Fault Tolerant Network Card
Applications / Limitations:
Standard Network: The maximum total cable length is 1.5km. The maximum number of
network nodes is 32 (50 with signal buffer)
Fault Tolerant Network: The maximum cable length is 1.5km between each node and the
maximum total loop length is 20km. Each network card has in-built
diagnostics and is fully monitored for both short and open circuit faults
between nodes. The network is capable of withstanding a single fault
between nodes without loss of communications to any single panel. The
maximum number of network nodes is 200.
Compatibility:
The Network cards are compatible with all Intelli-Sense series control panels.
The Remote Terminals TI-002322/TI-002321/TI-002323, BMS/Graphics interface and other
network peripherals such as Intelli-SenseMimic Units (IMU) all have integral network cards
built-in. (Only use fault tolerant Peripherals and Remote Terminals on a fault tolerant network).
Software Version 050-00 onwards
Item
Specification Details
Network connections
IN: A OUT: A
B B
SCN (Screen) SCN (Screen)
On-board Indication
2 LEDs. LED 1 illuminates when data is transmitted.
LED 2 illuminates when data is received.
Supply current
TI-002325 Standard Network Card:
20mA
TI-002324 Fault Tolerant Network Card: 43mA
(All power taken directly from the panel motherboard)
Temperature range
and Humidity
-5ºC to 40ºC
95% non-condensing (maximum)
Dimensions
(H x W x D)
85mm x 65mm x 20mm
(Mounting pillars are provided on the panel base cards to mount this
card).
Recommended
Cable
Two-core twisted-pair plus screen. (A list of recommended fire rated and
non-fire rated cables, including manufacturer and cable type, is included
at the end of this data sheet).
As our policy is one of constant product improvement the right is therefore reserved to modify product specifications without prior notice
Specifications:
CONTENTS
TI-002324/002325
Page No.

Table of Contents
1INTRODUCTION..................................................................................................................................................4
1.1 Key Features ...............................................................................................................................................4
1.2 Specifications ..............................................................................................................................................5
2INSTALLATION...................................................................................................................................................6
2.1 Installing the Panel Network Card...............................................................................................................6
2.2 Wiring Installation ........................................................................................................................................6
2.3 Fault Tolerant Fibre Networks.....................................................................................................................8
3CONFIGURATION AND PROGRAMMING.........................................................................................................9
3.1 Initial Configuration......................................................................................................................................9
3.1.1 Configuring a Network from the PC......................................................................................................9
3.1.2 Configuring a Network at the Panel....................................................................................................10
3.2 Adding a Node to the Network ..................................................................................................................10
3.3 Making Changes to a Panel ......................................................................................................................11
3.4 Changing Time and Date ..........................................................................................................................11
4DIAGNOSTICS TOOLS.....................................................................................................................................12
4.1 Fault Tolerant Network Card Software version .........................................................................................12
4.2 Printed Circuit Card Indicators ..................................................................................................................12
4.3 Panel Network Analyser............................................................................................................................13
4.3.1 Network Diagnostics –Duplicated Nodes...........................................................................................13
4.3.2 Network Diagnostics –Duplicated Zones...........................................................................................14
4.3.3 Network Diagnostics –Additional Fault Tolerant Information.............................................................14
4.3.4 Network Diagnostics –Fibre Networks...............................................................................................14
4.3.5 Network Diagnostics –Statistical Analysis.........................................................................................15
5COMMON FAULTS / PROBLEMS....................................................................................................................16
5.1 Corruption in the Transmission of Data.....................................................................................................16
6RECOMMENDED CABLES ..............................................................................................................................17
6.1 Fire rated cable..........................................................................................................................................17
6.2 Non-Fire rated cables................................................................................................................................17
CONTENTS

1 Introduction
The Intelli-Sense-NeT network is a true peer-to-peer token passing system that has been optimised for re systems.
It allows larger buildings to be protected by distributing the re panels throughout the building, instead of having to take all
the detection circuits back to a single point.
Details of all Fires, Alarms, Pre-alarms and Faults are passed over the network, allowing any panel or display
terminal in the building to show information as required. Each re panel can be programmed with appropriate
cause- and-e ect for the entire building.
The installation can also be partitioned into sectors (i.e. for multiple building sites such as college campuses) and
each panel can be assigned to a speci c sector. Control key and other operations can be de ned, at each panel, to
be e ective and respond to commands issued in some, all or none of the other sectors.
Panels, Display Terminals, BMS / Graphics Interfaces and Intelli-Sense Mimic Units can be integrated within the
network without the use of special installation spurs or other dedicated interfaces and wiring.
The fault tolerant (secure) network will continue to operate fully even if there is a single open or short circuit fault
condition on any one of the installation cables. In addition, the network diagnostics view option gives detailed and
clear information to identify the location of any network cable fault conditions.
1.1 Key Features
The Intelii-Sense-Net system Dynamix zoning facility
allows the networked system to share up-to
2000 zones giving non-confusing indication
and allowing true peer-to-peer cross panel
report, control and site-wide cause and e ect
functionality.
Simply adding and connecting a network card
allows any Intelli-Sense control panel or remote
terminal to be networked. All other nodes on
the Intelli-Sense-Net system will be instantly aware
of a panel as soon as it is given a valid network
node address, allowing additional panels to be
added at any time with a minimum amount of
reprogramming. All panels incorporate a
network analyser providing valuable diagnostic
and status information and also have the
facility to prevent the transmission of res or
faults during commissioning.
For more complex systems, the Windows
based PC-Net Mx con guration software allows
sector based programming for Mute, Silence,
Resound and Reset control keys as well as
investigation delays, group disablement and
test instructions. All panels within the same
sector will share common controls and each
panel or remote terminal can also be
programmed to show speci c network
information on a zone basis.
For cause and e ect, any input device can be
programmed to operate any output device on
any panel and, to simplify the programming, all
the con guration data is contained within one
user -friendly network con guration le.
Intelli-Sense Fire Panel Technology
The Intelli-Sense-Net network system allows
all Intelli-Sense series control panels, remote
terminals and network peripherals to be
connected together using standard re
resistant two-core cable.
It provides both the bene ts of distributed
intelligence and reduced installation costs
whilst catering for the smallest two-panel
network through to the largest 200 panel
wide area networked system.
The network operates as a true peer-to-
peer system allowing information from any
input or output device to be passed over
the network and displayed on any Intelli-Sense
control panel or remote terminal as required.
Details include Fire, General Alarm, Pre-
alarm, Fault, Control Inputs and
Disablement as well as analogue values,
test instructions and status information.
The network is available in two formats:
Intelli-Sense-NeT Network (Radial Format)
Intelli-Sense-NeT+ Network (Secure Format)
ABOUT THIS PANEL

1.2 Specifications
Item Specification
Number of Zones 2000
Number Nodes 200
Number of Sectors 100
P
PC C
O
ON NL LY Y
P
PC C
O
ON NL LY Y
Where you see the “PC Only” symbol, these features can be either only set-up
using the PC Configuration Tool or there are additional options that are only
available via the PC Configuration Tool.
ABOUT THIS PANEL

2 Installation
Isolate ALL sources of power before installing or removing printed circuit boards.
Observe anti-static precautions at all times when handling printed circuit boards.
2.1 Installing the Panel Network Card
An TI-002325 (STD) or an TI-002324 (FT) Network Card can be installed onto the base card.
The card is fitted to
the base card using
2x M3 screw and 2x
plastic pillars. Metal
pillars are pre-fitted
to the base card.
Refer to the
diagram opposite.
All signals and
power required for
operation of the
card are provided
on the plug-in
connections.
Plug the ribbon
cable into the
connector as
shown.
The screw fixing is
essential for EMC
Immunity
protection.
WARNING:
HIGH VOLTAGE INSIDE
DO NOT REMOVE COVER
No Serviceable Parts Inside
Plastic Spacers
Network Interface
M3 Screws
Ribbon Cable
Mounting Position for the Network Card (Example TI-002319-V)
Isolate ALL sources of power before installing or removing printed circuit boards.
Observe anti-static precautions at all times when handling printed circuit boards.
2.2 Wiring Installation
All electrical wiring installation work should be carried out in accordance with the code of practice or applicable
national standards appropriate to the country of installation.
To maintain electrical integrity of the SELV wiring on the input, output, loop and communications lines all SELV
wiring should be segregated from the LV mains wiring and be wired using cable with insulation suitable for the
application.
To minimise the effects of EMC interference all data wiring circuits should be wired with a twisted pair of
conductors with a cross sectional area suitable for the loading conditions.
In areas where cabling may come into contact with high frequency interference, such as portable radio transceivers
etc. the data wiring cable should be of a twisted pair construction within an overall screen. Care should be taken to
correctly terminate this screen, refer to the information below.
NB: Minimum / Maximum cable size for all external connections is limited to 0.5mm² / 2.5mm² (22-14AWG).
ABOUT THIS PANEL

The network permits the connection of other panels,
remote terminals and other devices to complete a
distributed system.
Either an TI-002325 (STD) standard network interface
card or an TI-002324 (FT) fault tolerant network
interface card must be installed in the panel. All
network nodes must be installed with the same type
of interface.
Cable must be twisted pair 18AWG or 20AWG.
Screened type cable is recommended (e.g. Belden
8760, 8762). Connect the screen to the designated
terminal block positions only.
Each interface card has independent connectors for
the outgoing and incoming network cable. Using a
twisted-pair cable, connect from the “OUT” socket
on the first panel to the “IN” socket on the next
panel as follows.
SCN
B
A
A
B
SCN
IN OUT
To Base Card
OUT Screen
B
A
Screen
B
A
IN
STD (Up to 32 nodes)
The “IN” terminals on the first node and the “OUT”
terminals on the last node are not used. Connect an
ELR (150Ω) resistor between A and B on the terminal
blocks of the unused sockets.
Maximum cable length (overall length) is 1500m using
recommended cables.
FT (Up to 200 nodes)
ALL Network devices must be fitted with a FT type
adaptor card.
Install a cable from the last node “OUT” terminals back
to the first node “IN” terminals to form a ring.
Maximum cable length between nodes is 1500m using
recommended cables. Maximum cable length (overall length) is 20000m using recommended cables.
For future easy reference, label the cables with their respective use, i.e. NET IN or NET OUT.
Use the cable tie markers and labels supplied. It may also be useful to indicate the node
numbers from / to which the panel is physically connected.
DO NOT connect the panels using spur wiring.
Special screen termination circuits are included on the circuit card to prevent mains frequency
earth-loop currents flowing between network nodes. Always connect the cable screen to the
screen termination on the network connector. DO NOT connect the cable screen to any other
point.
Always connect the separate lengths of cable to their respective IN and OUT connectors
otherwise the special cable screen termination arrangement will not work and the installation
may be susceptible to unwanted noise interference.
Where practical, the order of the node numbers should follow the sequence 1, 2, 3, etc. in line
with the physical cabling –this will greatly assist should it be necessary to diagnose any
network problems.
OUTIN OUTIN OUTIN OUTIN
ELR 150ohm ½ W ELR 150ohm ½ W
1500m
STD
OUTIN OUTIN OUTIN OUTIN
20000m (max)
1500m
FT
ABOUT THIS PANEL

Until the installation of a FT ring is completed, the panels will indicate a ring fault condition. In
this condition, the network will operate fully but will not be tolerant to a second fault condition.
Upon successful completion of the ring, the fault condition will be automatically cancelled.
2.3 Fault Tolerant Fibre Networks
It is possible to make connections on a fault tolerant networked system using fibre optic cable.
Fibre optic cable is completely immune to external electrical interference, which makes it ideal for harsh
environments.
A suitable pair of RS485 to fibre optic interfaces is required for each fibre section. The fibre interfaces provide two
fibre links between each interface so that communications can be made in either direction.
1 51 3 4
EXAMPLE: A system that includes fibre-optic links between nodes 3 and 4 and between nodes 50 and 1.
A break in a fibre optic cable is shown between the transmit output of the fibre interface connected to node 4 and the
receive input of the fibre interface connected to node 3 –refer to diagnostics section on how this fault is reported.
2
FIBRE
I/F FIBRE I/F
OUTIN BREAK OUT IN
FIBRE
I/F FIBRE I/F
50
Contact Ceasefire Sales / Technical Support for further information on available options.
ABOUT THIS PANEL

3 Configuration and Programming
3.1 Initial Configuration
TI-002319-VL
Node 1
TI-002317-V
Node 2 TI-002323
Node 3
TI-002318-V
Node 4
A network can be configured either directly from the panel, or from a PC. The PC can give greater flexibility over
displays, but the fundamental network principles remain the same.
Each panel and display terminal connected to the network is termed a network “node”. In order to run on the
network each node must be configured with the following information: -
It must be given a unique node address.
It must be told the address of the next node on the network.
Where practical, the order of the node numbers should follow the sequence 1, 2, 3, etc. in line with the physical
cabling (Refer to the Section 2.2 for details on the installation wiring).
For instance, the above example would be programmed as follows:
Panel This Node Next Node
TI-002319-V 1 2
TI-002317-V 2 3
TI-002323 3 4
TI-002318-V 4 1
The first node on a network should always be node address 1 and be a fire panel (Remote Terminals can not be
used as the first node). The last node on the network should have its “NEXT NETWORK NODE” address set to the
address of the first node.
Simple networks can be set up directly from the panel.
3.1.1 Configuring a Network from the PC
P
PC C
O
ON NL LY Y
The following features and functions can only be configured using the PC
Configuration Tool.
The Sector in which the panel is located.
The selective display of the Zones from which fire alarms, pre-alarms, plant alarms, test alarms and faults,
etc. will be displayed on each individual panel.
The Sectors from which Silence, Resound, Mute and Reset commands will be accepted.
The Sectors from which Stage 1/2 investigations, group disablements or test zones instructions will be
accepted.
Individual Device cause and effects on a panel and across the network.
Refer to the PC Configuration Tool Manual and on-line help for further information on the features and functions
available.
ABOUT THIS PANEL

3.1.2 Configuring a Network at the Panel
Select the “SETUP” option from “[Commission Menu 2]”.
[Setup]
THIS NETWORK NODE : 0
NEXT NETWORK NODE : 0
PANEL ZONE : 1997
SERVICE NUMBER : 01234 56789
Enter the address of “THIS NETWORK NODE”. Always ensure this is unique for each node on the network
(entering Node “0” removes the panel from the network).
For example, if this is the first panel on the network, set it to “1”.
The “NEXT NETWORK NODE” will then automatically change to “2”. If panel 2 has not yet been fitted, then change
the “NEXT NETWORK NODE” to the number of the next panel or display terminal that is actually connected to the
network.
Note that the rest of the network will be aware of a panel as soon as it is given a valid
network node address, but the network will not react to fires/faults etc from a panel
that is still in the commissioning state (This is to reduce the risk of false alarms during
commissioning).
You may notice the “Panel Zone” number change when a new node number is entered.
This is only a suggestion. You can change it to any appropriate zone.
However, please note that the zone assignment for ALL on-board circuits will be
automatically re-assigned to this new zone number even if they had been previously
changed.
Take care to ensure that the cause and effects dependent on specific panel zones and
inputs from the 8-way input card remain correct after changing the panel zone.
It is often easier to use the PC configuration tool to program the required zone
assignment, input actions, etc. and then update this information in the panel.
It is recommended that the zone text corresponding to the panel zone should describe the physical location of the
panel in the building (Panel zones and text can also be defined for each “On-board” circuit from the PC
configuration program).
Providing all the detectors have been learnt and appropriate text entered, the panel is then ready to run on the
network.
3.2 Adding a Node to the Network
It is quite common to add additional panels or detectors to a network, or make changes to the existing network (e.g.
change a detector type, modify location text etc).
The network is designed to accommodate these types of changes with the minimum of reprogramming as follows: -
For example, suppose the existing network has three fire panels at nodes 1, 2 and 3. A new fire panel is now to
be added.
Examples STD
Add the necessary wiring to connect the
new node to the network
The preferred method is to add the node
to the end of the line.
However, it is also possible to add the
new node physically located between
existing nodes to aid in cable routing –
remember to break into the cable run –
do not spur off.
1 2 3 1 2 3 4
1 2 3 1 2
4
3
Add the new node at the end of the line. Remember to move the EOL to panel 4 OUT connection. Remember the
overall cable length should not exceed 1.5km
Add the new node at the most convenient point for the installation wiring. Break the wiring between the nodes
(i.e. between nodes 2 / 3) and reconnect –see above. Remember the overall cable length should not exceed
1.5km
FT
ABOUT THIS PANEL

Configure the new node on the network
by giving it a unique node address in the
same way as when the network was first
commissioned (e.g. assign it to node 4,
with next node set to 1)
Tell node 3 that its next node is now
node 4.
1 2 3 1 2 3 4
1 2 3 1 2
4
3
Add the new node at the end of the line. Remember the length of each cable should not exceed 1.5km. Overall
loop length should not exceed 20km.
Add the new node at the most convenient point for the installation wiring. Break the wiring between the nodes
(i.e. between nodes 2 / 3) and reconnect –see above. Remember the length of each cable should not exceed
1.5km. Overall loop length should not exceed 20km.
3.3 Making Changes to a Panel
If a change is made to one or more detectors on a panel, the new detectors should be “Auto Learnt” and the
appropriate zone assignment and text added in the normal manner. Use either the panel keyboard or the PC
configuration tool.
All other panels and display terminals on the network will be automatically informed when the panel is returned to
Level 2 operation. If faults are present on any of the panels at the time the update is performed, the buzzer may
re-sound and require muting once more.
3.4 Changing Time and Date
If the time or date needs to be altered, this can be performed from the most convenient panel. Just enter the
Time/Date in the normal manner and then return the panel to normal Level 2 access –all commissioned panels on
the network will then be synchronised to the same time and date.
Time clock synchronisation activity occurs several times each day. This ensures each panel’s event log is using the
same time reference.
ABOUT THIS PANEL

4 Diagnostics Tools
4.1 Fault Tolerant Network Card Software version
The version number of the firmware of the fault tolerant network card can be viewed. Navigate to the network
diagnostics screen, and the version is shown in the upper right area of the screen, as shown below.
This software version information can also be viewed using the VIEW –PANEL –SOFTWARE menu option.
FT –Version information
[NETWORK –Press 0 to Clear] FT V04.00
Data Packets : 478234
Bad Packets : 0
Comms Lost : 0
FT Ring Fault: 0
Next Node at : 6
4.2 Printed Circuit Card Indicators
Each card incorporates LED Indicators that
may be useful in diagnosing fault conditions
on the network.
NOTE: Peripheral cards and Remote
Terminals also include these LED Indicators
as standard for their standard RS485 network
interface.
There are two LED Indicators for
Reception (RX) and Transmission (TX) of
data into or out of the unit respectively.
These flash according to whether data is
being received or transmitted.
In addition, the Fault Tolerant
Interfaces incorporate a third LED
Indicator to provide additional
diagnostic information on the
performance of the network and
on the performance of the Fault
Tolerant Card itself.
Standard Network Card –Panel
Fault Tolerant Network Card –Peripheral Fault Tolerant Network Card –Panel
OUTIN
OUTIN
ABOUT THIS PANEL

4.3 Panel Network Analyser
Each panel has a network analyser built into the panel circuits and software. It’s well worth using this analyser each
time you add a new panel to the network. When you exit from commissioning, invoke the analyser by selecting
from the “Level 2 Menu” / “VIEW” the “NETWORK” option.
The screen will then show a list of all network nodes. For example, if we have accessed the Network analyser from
node 3 a typical normal display is shown below: -
(STD heads each screen example shown for a standard type network and FT for a fault tolerant network.)
STD FT
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 1
2 LEVEL 1
3 LOCAL
4 LEVEL 1
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 1 FT RING
2 LEVEL 1 FT RING
3 LOCAL FT RING
4 LEVEL 1 FT RING
If a panel is not responding / cannot be found the following are typical displays: -
STD FT
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 2
2 -
3 LOCAL
4 LEVEL 3
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 2 FT RING
2 -
3 LOCAL FT RING
4 LEVEL 3 FT RING
Node 1 is working at access level 2 (i.e. with all control keys enabled).
Node 2 is not responding on the network, so the state cannot be determined.
Node 3 shows “LOCAL” to indicate we are accessing the network from this panel.
Node 4 is at access level 3 (i.e. present on network, but still in commissioning mode).
The and scroll keys allow the display to scroll and see other nodes.
Certain fault messages are latched. Press RESET to clear these conditions.
Pressing the “0” key will clear all old diagnostic information.
4.3.1 Network Diagnostics –Duplicated Nodes
All node addresses on the network should be unique.
If a “NODE DUPLICATED” message is shown, this indicates that another node has been detected at the same
node address. For example:
STD FT
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 2
2 LEVEL 2
3 LOCAL NODE DUPLICATED
4 LEVEL 1
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 2 FT RING
2 LEVEL 2 FT RING
3 LOCAL NODE DUPLICATED
4 LEVEL 1 FT RING
ABOUT THIS PANEL

4.3.2 Network Diagnostics –Duplicated Zones
A warning is produced if any of the panels that are active on the network appear to duplicate zones that have been
assigned to this panel.
For example, if both this panel and the panel at node 2 both have devices assigned to zone 19, a “Duplicated
Zone” warning is shown.
STD FT
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 2
2 LEVEL 2 CHECK DUPLICATED ZONE 0019
3 LOCAL
4 LEVEL 1
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 2 FT RING
2 LEVEL 2 CHECK DUPLICATED ZONE 0019
3 LOCAL FT RING
4 LEVEL 1 FT RING
There are no restrictions to the order in which zones are assigned.
For example, it is OK for Node 1 to have devices in zones 31, 32 and 35, and Node 2 to have devices in zone 1, 2,
33 and 34.
4.3.3 Network Diagnostics –Additional Fault Tolerant Information
The Fault Tolerant Network provides additional information to locate the source of any network wiring failures.
The example below show that there is: -
A) A fault on the input to Node 2. For example, an open or short circuit cable could cause this condition.
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 2 FT RING FAULT
2 LEVEL 2 FT RING INPUT LOST
3 LOCAL FT RING FAULT
4 LEVEL 1 FT RING FAULT
The network diagnostic function periodically checks that it is possible to transmit and receive in the opposite
direction. If there is a fault in the hardware, a ‘REVERSE RING FAULT’ will be shown. This is particularly important
for fibre networks –see below.
4.3.4 Network Diagnostics –Fibre Networks
Faults in systems that consist of one or more fibre optic links can be identified as described previously in the
network diagnostics section, with the exception of one category of fault that is peculiar to fibre optic links. This
particular type of fault is where a condition exists that prevents data passing from the "IN" terminal of one node to
the "OUT" terminal of the connected node, but data flow in the opposite direction is unimpeded.
Such a condition can typically arise when fibre optic links are used, and is illustrated in the figure above. The
system shown has a single break in the fibre optic cable between the transmit output of the fibre interface
connected to node 4 and the receive input of the fibre interface connected to node 3. Here data is prevented from
passing from the "IN" terminal of node 4 to the "OUT" terminal of node 3, but is unaffected in the opposite direction.
A network fault will be detected on the system in such an instance but the location of the fault cannot be exactly
determined. A suggested list of possible fault positions can however be seen using the network analyser screen.
The rule is that if such a fault exists then "FT REVERSE RING FAULT" will be shown on node 1 and all other
nodes between it and the node that actually has the fault on its "IN" terminal, working in the direction from "IN"
terminal of node 1 to the "OUT" terminal of the node that this is connected to. It is helpful to have a site wiring plan
to aid in locating these faults.
For the fault shown in the example above, panels would show the following information:
ABOUT THIS PANEL

FT
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 2 FT REVERSE RING FAULT
2 LEVEL 2 FT REVERSE RING FAULT
3 LOCAL FT RING
4 LEVEL 1 FT REVERSE RING FAULT

[NETWORK –Press 0 to Clear] More >
Node State
49 -
50 LEVEL 2 FT REVERSE RING FAULT
51 LEVEL 3 FT RING
52 -
If the fibre link between the transmit output of the fibre interface connected to node 3 "OUT" and the receive input
of the fibre interface connected to node 4 "IN" is also broken, so there is no fibre connection between the two
interfaces, then the system will report the fault in the conventional manner. The network view will then be as shown
below.
FT
[NETWORK –Press 0 to Clear] More >
Node State
1 LEVEL 2 FT RING FAULT
2 LEVEL 2 FT RING FAULT
3 LOCAL FT RING FAULT
4 LEVEL 1 FT RING INPUT LOST

[NETWORK –Press 0 to Clear] More >
Node State
49 -
50 LEVEL 2 FT RING FAULT
51 LEVEL 3 FT RING FAULT
52 -
4.3.5 Network Diagnostics –Statistical Analysis
Pressing the “” key will change the display format to a statistical mode. It shows the number of data packets
passing over the network and the number of errors detected in the packets.
Note that major network errors, such as the complete loss of a node from a network, are reported on the previous
screens (and on the standard panel fault displays). This statistical view is intended for indicating the occurrence of
occasional interference, etc.
Pressing the “0” key will clear any old data out before using this display for the first time.
STD FT
[NETWORK –Press 0 to Clear]
Data Packets : 478234
Bad Packets : 2
Comms Lost : 1
Next Node at : 6
[NETWORK –Press 0 to Clear]
Data Packets : 478234
Bad Packets : 2
Comms Lost : 1
FT Ring Fault: 1
Next Node at : 6
On a healthy network, the number of Data Packets will rapidly increase –several million will be sent each day.
The network is intended to function normally with an occasional Bad Packet, but if this number is seen to increase
at a rate of several per hour or higher, it indicates that the network has to deal with continuous corruptions. This
may result in delays in the reporting of alarms. The most likely cause is interference from an external source –also
check that screen terminations have been made correctly. Address the problem as soon as possible.
A “NETWORK NOISY” message on the normal user display indicates that the network is having difficulty in
transmitting messages around the network. Use the diagnostics tools and recommendations above to establish the
cause of this problem. NOTE: This message may also be shown for a short period after a true network wiring fault
has been cleared (usually <30 seconds).
If the “NEXT NETWORK NODE” address is different to that entered during network configuration, then this node
has been unable to communicate with its neighbour. It will then attempt to search out and find another active node
on the network. If no other nodes can be found, this will then revert to its own node address.
ABOUT THIS PANEL

5 Common Faults / Problems
5.1 Corruption in the Transmission of Data
The most likely reason is that the cabling is being subjected to external interference. This can be caused by a
number of factors. For example:
Non-screened cable used. Re-route the cable or consider changing to
screened cable
Cable Screen not correctly terminated. Ensure that the cable screen is connected to
the SCN terminal on the connector.
Cables connected to the wrong terminal block. Check that the cables are connected IN to OUT
throughout and there are no cables connected
IN to IN or OUT to OUT.
ABOUT THIS PANEL

6 Recommended Cables
A 2-core twisted-pair cable is required between each Intelli-Sense-Net node. Choose a cable in accordance with the
regulations and codes appropriate to the country and location of installation. The following is recommended if no
other regulations apply.
6.1 Fire rated cable
Manufacturer Model Cable Type
Huber &
Suhner Radox Screened Twisted Pair Fire Cable Type FR BS/M 1 x 2 x 1.5mm²
Pirelli FP200 Gold Screened Twisted Pair (5 twists/metre) 1.0mm²
Pirelli FP200 Flex Screened Twisted Pair (9 to 10 twists/metre) 1.0mm²
AEI Firetec Screened Twisted Pair (20 twists/metre) 1.0mm²
Draka Firetuf Screened Twisted Pair FTZ 2E 1.0 (1.0mm² solid) or FTZ 2E7
1.0 (1.0mm² stranded)
AEI Firetec MI Two Core 16AWG cable ref: 2-16-340 *
Tyco Thermal
Controls Pyro E (MICC) Screened Twisted Pair CCM2T1 (1.0mm²) or CCM2T1.5 (1.5mm²)
6.2 Non-Fire rated cables
Manufacturer Model Cable Type
Belden 8205 Unscreened Twisted Pair 20 AWG (0.5 mm²)
Belden 8461 Unscreened Twisted Pair 18 AWG (0.8mm²)
Belden 8760 Screened Twisted Pair 18 AWG (0.79mm²)
Belden 8762 Screened Twisted Pair 20 AWG (0.56mm²)
Alpha & BICC Alpha 2421,
BICC H8093 Screened Twisted Pair 18 AWG Type 2
Alpha & BICC Alpha 2411,
BICC H8091 Screened Twisted Pair 20 AWG Type 2
Belden 9802 Screened Twisted Pair 20 AWG Type E buried distribution wire
**
*Not twisted pair –route away from mains voltages.
** Twisted pair cable suitable for use underground (NB NOT SINGLE WIRE ARMOURED).
ABOUT THIS PANEL

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