Enfora Enabler III-G
Modem Integration Guide
6.6.9. Power Control (Pin 35)
The input is equivalent to the “phone ON-button”. A falling-edge on this Active-Low input will switch-ON
the module or switch-OFF the module after a delay. This input has a “weak pull-up” resistor internal to
the module. This input can be left grounded if the “RTC Sleep Function” is not required. If RTC Sleep is
required, see Section 6.6.10.
Module
Reset
Parameter/Conditions
MIN TYP MAX UNIT
V
IL
Input Voltage – Low or float
0.9
Vdc
V
IH
Input Voltage – High
2.1
5.5
Vdc
I
PU
Internal Pull-Up Resistor
-40
-31
-15
μ
A
ON Pulse Duration
25
mS
OFF Pulse Duration
Programmable
tbd
mS
6.6.10. RTC Sleep
In this mode, the modem is off except for its Real-Time-Clock. When put into this mode, the modem
can wake itself up at a designated time/interval.
6.6.11. Serial Interfaces & Handshake (Pins 11, 13, 15, 17, 19, 21, 23, 25)
Pin Name
Pin Number
Signal Direction
Description
UART_TX
15
O
Serial data output
UART_RX
21
I
Serial data input
UART_RTS
13
O
Request to send
UART_CTS
11
I
Clear to Send
UART_DSR
17
I
Data set ready
UART_DTR
25
O
Data terminal ready
UART_DCD
19
O
Data carrier detect
UART_RING
23
O
Ring detect output
Please note that Serial interface is now referenced as a DCE and the
naming of pins has changed since Enabler II products
GSM0308PB001
43
Version DRAFT – 2/9/2007