Technical information

Page 19
TFXnet is a collection of network interface
modules and peripheral equipment that together
form a robust, fault resilient and flexible peer-to-
peer communications network.
Operation
TFXnet employs a token passing communications
protocol that treats each node equally. Loss of
one or more nodes does not affect operation of
the remainder of the network. The network will
automatically re-configure when a node is inserted
or removed.
Data is regenerated at each node with a minimum
delay (1/2 bit time). This provides maximum
distance between nodes and isolation of
signalling circuits between nodes without
impacting data throughput. Isolation ensures that
a short/open condition on a circuit between any
two nodes does not affect other circuits.
In the event that groups of nodes are isolated
from the remainder of the network, due to one or
more circuit faults, each group will automatically
re-configure communications and continue to
inter-operate. When the fault condition is restored,
the network will re-configure and total
communications will commence.
Features
. Half duplex, token passing protocol
. Peer-to-peer operation
. Automatic fault recovery
. Field configured baud rates up to 38.4K baud
. Asynchronous, 1 stop bit, 8 data bits, no parity
. Deterministic performance
. Self-configuring
. Error detection and recovery
. Short circuit isolation at each node
. Open/short circuit detection identifies the
location of the fault
. Nodes automatically disconnect from the
network at loss of power and when
experiencing a catastrophic failure
Features - TFXnet Communications
. True peer-to-peer communications, no host or
master controller
. Node failure does not affect remainder of
network
. Groups of nodes isolated due to circuit faults
continue to communicate within the group
. Supported communication media -
combinations of fibre optic, twisted/shielded
pair and twisted/unshielded pair
. Supported topologies - combinations of star,
bus and ring connections
. Token passing non collision (deterministic)
communications protocol
. Plug-in module (model TLI-530) connects
equipment anywhere on the network
Features - TFX Panel Operation
. Up to 62 AUTOCALL TFX Series fire panels
connect to a single TFXnet network; Supports
up to 61,380 analogue addressable points;
4960 zones; over 7000 digital I/O points
. Panels maintain full stand-alone functionality
. Each panel can be configured to respond to
events from all or any other sub-set (referred to
as sub-net) of other panels
. Up to 3 panels can be configured to provide
full system annunciation, control and logging;
configuring two panels as identical receiving
units provides hot-backup of central
monitoring equipment
. ‘Virtual Front Panel’ (VFP) feature allows
operator interrogation and control of any panel
from any other panel
. All TFX-500 and TFX-800 features and
capabilities are retained
. TFX Panels can be configured with integrated
single and multiple channel voice and audio
evacuation equipment as well as integrated
addressable firefighters telephone system
Features - Optional Equipment
. PC Based graphical user interface (Firegraph)
connects directly to the TFX network
Listings & Approvals
. Rind and redundant path star topologies meet
NFPA 72 Class A, Style 7 signalling circuit
standards
. Bus and single path star topologies meet
NFPA 72 Class B, Style 4 signalling circuit
standards
. All equipment is UL listed (864) (UOJZ) for
NFPA 72 local, auxiliary, remote and propriety
signalling services (UL File No. S2561)
. CSFM No. 7170-1493:167
. MEA No. 415-92-E, Vol. VI
Product Codes
976165
TLI-530 Module kit for use on TFX-Net only
976166
TLO-530 Board kit for use with TFX-Net
TFX Fire Alarm System Network
Technical Specification
IAA-16 OAA-16 OMA-80 XAA-16
Dimensions 141H x 84W x 18.5D mm 141H x 84W x 18.5D mm 231H x 188W x 12.5D mm 141H x 84W x 18.5D mm
Operating Temperature 0 to +50
o
C 0 to +50
o
C 0 to +50
o
C 0 to +50
o
C
Operating Humidity 85% Non-Condensing 85% Non-Condensing 85% Non-Condensing 85% Non-Condensing
Input Voltage from MPIM 5Vd.c. 5Vd.c. 5Vd.c. 5Vd.c.
Input Current 11mA plus 5mA 11mA plus 10mA 11mA plus 10mA 9mA plus 5mA (per configured
(per active input) (per active output) (per active input) input plus 50mA per active o/p)
Output Current per LED - 10mA 10mA -
Output Current per output - - - 100mA
(not current limited)
This unit is used with alarm signal circuits of main
processor.
Product Code
976016
TFX IAS-500 End of line (EOL) assembly
End of Line Assembly