Basic Connections - Bentel Security B-TEL99 Manual De Instalación Y Usuario

Activation mode The default programming is for Positive drop. This intrinsic safety function mode also protects
against wire-cutting and blackout.
F
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:
l
if the alarm command is permanent, the B-TEL99 will carry out the alarm cycle once only;
l
the B-TEL99 will complete the alarm cycle even when the alarm command is not permanent.
To stop the alarm cycles in this case:
l connect terminal 8[B.A.] to Negative (terminal 9)
l or enter the User Command PIN on the B-TEL99 keypad.
13[+12] - 14[M] Power supply . The B-TEL99 must be powered by 13.8 Vcc 250 mA min.

BASIC CONNECTIONS

The basic connections are necessary for the basic functions of the B-TEL99, and are illustrated in figure (highlighted
lines). Figure illustrates Alarm channel 1 connected to the normally closed contact (NC) of the control panel alarm
relay.
F
If the default programming (Positive drop) is to be changed to activation by Negative command, the Alarm channels
must be connected to an output that goes to Ground (Negative) in the event of alarm (e.g. open-collector output).
Basic
connection
a
b
c
Phone plug
Ground
connection
Fire alarm or burglar
control panel,
radio receiver
Figure 10 - Basic and auxiliary connections
INSTALLATION
B-TEL99
1 2 3 4 5 6 7 8
Internal
phone line
9 10 11 12 13 14
L1 L2
OUT
1K5
1/4W
Tamper line
of security system
Burglar control panel
+B
29