Kidde Stratos-HSSD 2 - External Communications

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Stratos HSSD-2 • INSTALLER’S HANDBOOK • Iss. 12
6 External
Communications
6.1 BMS protocols on the Stratos-HSSD 2 Command Module
The Command Module of the Stratos-HSSD 2 has a second RS232 port that can be
used to send messages to a pager or compatible GSM phone using a modem or to ena-
ble connection to a Building Management System (BMS). This comprises the terminals
“RS 232 Tx” (transmit), “RS 232 Rx” (receive) and “GND” on the green terminal block
inside the unit (see section 5.3.2, Command Module terminal block connections”).
Set-up of the Command Module is done using three functions; BMS protocol ,
Page on fault and Page on alarm (see sections 3.4.33, 3.4.41 and 3.4.42
respectively).
When either Page on fault or Page on alarm is enabled the second serial port is
reserved exclusively for paging purposes by setting BMS protocol to 0 (TAP paging).
Programmable function BMS protocol sets the communications format that is used
by the second serial port to communicate with the BMS. Setting BMS protocol to
anything other than 0 (Tap paging) will disable functions Page on fault and Page
on alarm if they are enabled.
BMS Protocol numbers are as follows:
The settings of a compliant system should be recorded, as it is possible by changing certain
programmable functions to make the system non-compliant. If functions are changed,
it is recommended that the system is retested if continuing compliance is in any doubt.
For EN 54-20 compliant installations the detector requires that the flow
thresholds be set manually to ± 6% of the nominal value, after the FastLearn
phase is completed. For example, if the flow rate is 64% after the completion of
the FastLearn period, the user must manually set the low flow threshold to 58%
and the high flow threshold to 70%.
6.1.1 Text output support (protocol 1)
Text is output at 9600 baud, 8 bit with no parity. When an event occurs the event is printed
in the following format:
Device ‘Command Module’ or ‘Detector n’
Event ‘Fire 1’
Timedate 10:32 21/03/2001
0 TAP paging (default).
1 Output only. Events are sent in the same Ascii text format as the
internal event log display. This may be used to drive a serial printer
if required.
2 BACnet ANSI/ASHRAE standard 135-1995.
protocol
number
protocol
IMPORTANT NOTE
!