EBS LX20B, Инструкция по установке и программированию

Страница: 52 / 67

LX20B – Manual Page 52 / 67
Note: The transmitter is to simulate a telephone line access if:
o
A PSTN line is not connected
o
A PSTN line is connected but has not been activated option from clause 7.9.1.1.
o
Options from clause 7.9.1.1. and clause 7.9.1.3. are active and voltage on
terminals TIP-RING decreased below 8V.
7.9.1.4. Report off-hook
If a phone set is connected in parallel output of control panel communicator (to
terminals T1-R1 of transmitter), picking up of a phone prevent from exchange of
data between an control panel and a transmitter. There is possibility to control this
situation. Choice of this option result in sending a report to monitoring station if
time of picking up the phone exceeds determined time limit.
7.9.1.5. Report intervals between dialled digits
This option is being used if in configuration “PSTN line – LX20B – Alarm Control
Panel” there are not other telecommunication devices. If such device will be
connected and telephone number will be dialled (and a call will follow) after expiry
defined time limit (counted since conclusion of last digit dialling) the transmitter
sends a message. This operation prevents unauthorised installation of additional
devices.
7.9.1.6. Generate dial tone
Some alarm control panels require that during a receiver picking up a tone of
dialling was actuated. To enable cooperation with a transmitter it is possible to
make a transmitter to generate such tone.
7.9.1.7. Detect off-hook
The default value for the delay detection off-hook is 100ms. You can define your
own delay value by choosing option "After" and giving the number in milliseconds.
7.9.2. First and Second phone number
To provide for proper cooperation between a transmitter and a control panel in
DTMF mode determination of some parameters is required. The below described
functions are analogous to the both telephone numbers that may be saved in the
device memory.
7.9.2.1. DTMF phone number
This is a number that has been saved in memory of an alarm control panel. If the
panel is to transmit information on an event it shall dialled this number.
Transmission of this information via GSM (GPRS) will be possible if this number will
be identical as a number entered into the transmitter.