Connecting The Device; Activation Polarity - Bentel Security BTEL-GT Manual De Instalación Y Usuario

CONNECTING THE DEVICE

This section describes the various terminals. Figure 3 shows a typical wiring diagram.
N. Terminals
Power supplied by the control unit or by the external power supply ADP1512 (optional), 13,8 Vcc
2%, make sure that this is protected and operating at a limited current; Limited Power Source (LPS)
in conformity with EN 60950-1:2006 standard.
1 +12
! To connect the supply use wires with a maximum 2 mt length and 0.75mm² cross-section. For
shorter wires use suitable cross-sections.
2
M Negative: Power Supply.
3 Tamper switch: These terminals are connected serially to the tamper switch [ 16] and are closed when
AS
the cover [2] of the dialler is completely closed; they open when the cover [2] is removed.
4
Common terminal for Open-Collector Outputs: Common power-supply terminal (12 VDC / 100 mA) for
5 +OC
all Outputs O1, O2, O3 and O4.
6 O1
Open-Collector Programmable Output Ports: these output ports can be activated from a voice menu
(local or remote), or else either by sending a command in a text message or through caller ID (Remote
7 O2
Activation). The maximum current that can be drawn from each OC output port is 100 mA.
8 O3
Open-Collector output: This output is activated by GSM network malfunctions, low battery power, and
9 O4
problems with the SIM card.
10
M
Negative: Power Supply.
11 L1
12 L2
Input lines: When these inputs receive alarm signals, they can activate the SMS and telephone dialer
function.
13 L3
14 L4
15
M Negative: Power Supply.
! ! ! ! ! The Open Collector current may not exceed 100 mA. If necessary, commutate greater loads
using switches or our switch boards BRM04/12 (12V dc) and BRM04/24 (24V dc).

Activation Polarity

The Dialler contains 4 alarm inputs; each input can be activated by signals with positive or negative polarity; in the
factory, the dialler is programmed to be activated by signals with positive polarity. To set the activating polarity,
see Table 4.
Activation command for input channels
Negative drop (fail-safe)
Negative command
Positive drop (fail-safe)
Positive command
8
Table 4 - POLARITY AND ACTIVATION
Description
Jumper
[19]
UP
O
O
o
DOWN
UP
o
O
O
DOWN
Settings
Programming
Input Polarity
(positive)
(negative)
(negative)
(positive)
BTEL-GT
±