ATTENTION
To comply with the telephone network safety standards,
and protect the B-TEL99 from overvoltage on the telephone line, terminal
5[
] must be connected to Ground of the electrical circuit.
6-7 [AS]
Tamper
. These normally closed terminals must be connected to the tam-
per switch/es
13
(on-board), and
11
(not supplied). The tamper switch
13
opens the circuit when the front panel of the B-TEL99 is removed. The op-
tional tamper switch
11
(installed on the backplate, by request) opens the
circuit when the B-TEL99 is pulled off the wall. These terminals must be
connected to the tamper line of the security system control panel.
8[BA] - 9[
]
Stop Alarm
. This terminal may be used to stop the alarm cycle/s, from a
remote position or by means of a device (usually the control panel of a se-
curity system). To stop the alarm cycle/s connect this terminal
momentar-
ily
to Negative.
ATTENTION
If terminal 8[B.A.] is used the alarm cycle will be stopped
when Negative drops.
10[OUT]
Line fault
. This terminal signals fault on line. Terminal 10[OUT] is an open-
collector output (NPN).
11[L1]
Priority alarm channel.
This terminal must be connected to Positive, when
Positive drops the B-TEL99 actuates the alarm channel 1 calls.
+
If alarm channel 1 (priority channel) goes into alarm status during the
channel 2 cycle/s, the latter will be interrupted by the programmed channel
1 cycles, the remaining channel 2 cycle/s will restart when the channel 1
cycle/s end.
12 [L2]
Secondary alarm channel
. This terminal is for alarm channel 2 activation.
When alarm channel 2 is actuated the B-TEL99 starts the alarm channel 2
alarm cycle and sends the programmed messages to the assigned tele-
phone numbers. When Positive drops on this terminal: both alarm chan-
nels will go into alarm status and will carry out the programmed cycles.
Activation mode
The default programming is for Positive drop. This intrinsic safety function
mode also protects against wire-cutting and blackout.
+
If required, it is possible to program activation by Negative command, that
is, by connecting the alarm channel to Negative. This function mode is
useful in connections with open-collector alarm outputs.
In all cases:
Ø
if the alarm command is permanent, the B-TEL99 will carry out the alarm
cycle
once
only;
Ø
the B-TEL99 will complete the alarm cycle even when the alarm command
is not permanent.
To stop the alarm cycles in this case:
12
Telephone dialler
B-TEL99
