Tyco F3200 - Manual (Page 218)

F3200 Installation & Programming Manual Document No: LT0122
Network Programming
Page 11-8 5 July 2001 Issue 2.7
PROGRAMMING METHODOLOGY (CONTINUED)
4) Determine whether acknowledge of broadcasts is to be enabled.
Some of the messages transmitted on the network are "broadcast" i.e. not directed to one
particular SID but to all SIDs. A single device on the network may be programmed to
acknowledge these broadcast messages to provide some confirmation that the broadcast
message was received by other devices. All non-broadcast messages are acknowledged by
the SID that the message is directed to. Enabling acknowledge of broadcasts does increase
the loading on the network.
It is recommended that if an F3200 panel is to acknowledge broadcasts then it should be the
most lightly loaded FIP on the network, taking into consideration the number of circuits,
amount of output logic and the number of display boards. If a PTM protocol translation
module), NLDU (network LED display unit), NDU (network display unit), or PMB (Panel-Link
MODBUS bridge) is present then it is preferable to use one of them to do the acknowledging
of broadcasts, rather than an F3200 panel.
5) Determine NET MAF Configuration
This allows a panel to send out its MAF status/totals to other panels, which may combine it
with their own, and the status of other panels, to control a single brigade interface. MAF
status is not controlled by network groups.
6) Network Variable Setup
Determine what information needs to be sent to other panels using network variables. If
individual brigade signals are required per panel on the network then network variables can
be used to transfer status.