User manual

10
Pin
Description
1
VCC
2
-
3
EMERG_OFF
4
TO_IN
5
-
Table 1: Pin Description
PIN
Signal
Direction
Limits
Description
1
VCC
Input
5 – 32V
Positive power
input, DC
2
Not connected
Not connected
Not connected
Not connected
3
EMERG_OFF
Input
5 – 32V
Active high
control line used
to switch off
VIH > 5V, VIL <
.5V
Power off: t >1s
4
TO_IN
Input
5 – 32V
Positive edge
triggered signal;
used to switch on
the modem
VIH > 5V, VIL <
0.5V
Power on: t >1s
5
Not connected
Not connected
Not connected
Not connected
6
GND
Input
-
Negative power
(ground) input
and return path
for TO_IN and
EMERG_OFF
Table 2: RJ11 Pin and Signals Description
2.2 Antenna Connector
The antenna connector allows transmission of radio frequency (RF) signals between the
modem and an external customer-supplied antenna. The modem is fitted with a 50Ω, FME
male coaxial jack.
Output Power:
2 Watt Peak (Class 4) GSM 900/850 MHz
1 Watt Peak (Class 1) GSM 1800/1900 MHz
The antenna that the customer chooses to use should fulfil the following requirements: