a. Check whether the power feedback cable of the fire alarm control panel is correctly
connected or not;
b. Check whether the power feedback type in the Power Setup menu of the fire alarm control
panel complies with the actually used power supplies or not; or
c. There is an AC FAULT and a DC LACK fault.
²
Fault phenomenon: Upon alarms, the printer prints unreadable
codes.
The fire alarm control panels of 9000 series may be set with multiple printer types and their
communication parameters. The possible causes of the fault include:
a. The set printer type does not comply with the printer provided. For example, if the printer
type if set to be “SPRT-01 printer”, it means that it is a stylus printer; and if the printer type
is set to be “SPRT-02 printer”, it means that it is a thermal printer.
b. The communication rate of the printer is improperly set. Generally speaking, the factory
default of the communication rate of a stylus printer is 2400BPS and that of a thermal
printer is 9600BPS. The communication rate of the printer may be obtained through a self
test of the printer. The detailed operating method is: Press the left key to make the power
light of the printer go out and then the right key and the left key in order to make the
printer undergo a self test. Among the results printed following the self test, there is the
current communication rate of the printer.
²
Fault phenomenon: When two or more fire alarm control panels
are networked, the No.2 fire alarm control panel can receive the
alarm information sent from the No.1 fire alarm control panel, but
the No.1 fire alarm control panel fails to receive the alarm
information sent from the No.2 fire alarm control panel.
The fire alarm control panels of 9000 series adopt the non-master-slave networking mode,
namely there is neither master fire alarm control panel nor slave fire alarm control panel(s) in
the networked system. Only after another fire alarm control panel has its number registered
can the alarm information of the current fire alarm control panel be sent to it through a
networking transmission line. The No.2 fire alarm control panel can receive the alarm
information sent from the No.1 fire alarm control panel. which means that the corresponding
networking transmission line is smooth and that the No.1 fire alarm control panel is
registered in the networking setup; the No.1 fire alarm control panel fails to receive the alarm
information sent from the No.2 fire alarm control panel, which only means that the No.1 fire
alarm control panel is not registered in the No.2 fire alarm control panel.
²
Fault phenomenon: During the networking of the fire alarm
control panels, the communication distance is not far and the
communication rate is not high, but the quantity of the data
packages received during the bus quality inspection is much
less than the quantity of the data packages sent and the
networking is abnormal.
During the networking of the fire alarm control panels of 9000 series, the present advanced
CAN BUS protocol is used. It is specified by the CAN BUS protocol that the networked fire
alarm control panels should be subject to a serial connection rather than a star connection,
there must be a 120
Ω
terminal resistance at the two ends of the networked system
respectively and there must not be too many terminal resistances between the two ends in a
bid to ensure a quick and reliable communication for the networking buses.
²
Fault phenomenon: A fire alarm control panel reports a short or
open circuit fault of the XX circuit of interface board XX.
Upon a short circuit fault of a circuit of an interface board of a fire alarm control panel of 9000
series, the system w
ill report “Short circuit fault of the XX circuit of interface board XX”
automatically. There are four lights on each interface board. In the normal circumstance, the
-19 -
