Helmholz 700-751-HSM11, Руководство пользователя, Страница: 27 / 99

Helmholz Modem 56k 4.1 27
Configuration with HSComm:
5.7 Alarm Input
(Not for the leased line version)
1
2
4
5
6
7
8
9
10
3
GND
GND
X1
GND
Reset
GND
Input 1
Input 2
GND
10...60 VDC
1
2
4
5
6
7
8
9
10
3
Pow
e
r
s
upp
ly
IN 1
IN
2
Ex
t.
Re
s
e
t
The HELMHOLZ Modem has two digital inputs which are activated by
connecting them to ground (at least 4 seconds). When an alarm occurs, the
HELMHOLZ modem can send a message either via a data connection, a fax
or an SMS. The simple activation of INPUT2 acts as 2 pulses at INPUT1.
If the pulse input (INPUT1) is activated, the HELMHOLZ modem can dis-
tinguish between 10 pulse sequences. Each of these 10 alarm events is allo-
cated an alarm message and a recipient.
The length of a pulse or the pause respectively can have a duration between
0.3 and 2 seconds. The entire pulse processing takes place after a pause of 5
seconds.
For control purposes, simple and pulse alarms may be triggered via
AT
commands.