Telit Wireless Solutions GT864-3G, Руководство пользователя

Страница: 13 / 41

GT864-3G Terminal Product Description
80269ST10071a Rev.0 - 14/09/0 9
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 13 of 41
Pin Description
1 VCC
2 -
3 HR_IN
4 TO_IN
5 -
6 GND
Signals of Power Connector:
PIN Signal Direction Limits Description
1 VCC Input 5 – 32V Positive power input, DC
2 Not connected
Not
connected
Not
connected
Not connected
3 HR_IN Input 5 – 32V
Active high control line used to switch off
V
IH
> 5V, V
IL
< 0.5V
Power off: 1s < t < 2s
4 TO_IN Input 5 – 32V
Positive edge triggered signal; used to switch
on the modem
V
IH
> 5V, V
IL
< 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 HR_IN