User manual

10
PIN
Description
1
VCC
2
-
3
EMERG_OFF
44
TO_IN
5
-
6
GND
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 MHz
1 Watt Peak (Class 1) GSM 1800 MHz
Description of recommended antenna parameters:
The antenna that the customer chooses to use should fulfil the following requirements: