Figure 10 External Power Control Signal (No External Processor) - Enfora Enabler II-G Integration Manual

Integration Guide
Version 1.01
6.8.3 Radio Power/Reset
Pull low for radio off. Use large value pull-up resistor (up to 1 MΩ) to Vcc (Power Input/Batt).
PARAMETER PARAMETER / CONDITIONS
V Input Voltage – Low
IL
V Input Voltage – High
IH
6.8.4 Using the Power Control Signal
Please note that the Power Control Signal is only
!
available on the Quad-Band Enabler II-G module,
GSM0108. It is not available on the Triple-Band
Enabler II-G module, GSM0107.
Figure 9 shows a typical connection to the GSM0108 module in a machine-to-machine application using the
external PWR_CTL_SIGNAL solution, where there is no external processor controlling the I/O, serial, or power
on/off states. RTC deep sleep functions will NOT function since the PWR_CTL_SIGNAL pin is tied low, the
processor will never stay in a "RTC Sleep" mode. To reset the module, power (BATT) must be cycled. VBAK
must be connected to an uninterruptible power source if RTC time is to be retained.
Any State
Any State
BATT
Float
Figure 9 External Power Control Signal (no external processor)
GSM0108PB001
Machine to Machine configuration, using
external PWR_CTL_SIGNAL solution
I/O
Serial 1
RADIO_PWR/RST
PWR_CTL_SIGNAL
Page 28
MIN TYP MAX
0
Vcc
0.7 Vbat
Vcc
GSM0108
VBAKup
UNIT
0.3 Vdc
Vdc
1.01 – 01/21/05