User's Manual
Table Of Contents
- Contents
- Table Index
- Figure Index
- 0. Revision history
- 1. Introduction
- 2. Product concept
- 3. Application interface
- 3.1. Pin
- 3.2. Operating modes
- 3.3. Power supply
- 3.4. Power on and down scenarios
- 3.5. Power saving
- 3.6. Summary of state transitions
- 3.7. RTC backup
- 3.8. Serial interfaces
- 3.9. Audio interfaces
- 3.10. SIM card interface
- 3.12. Behaviors of the RI
- 3.13. Network status indication
- 3.14. Operating status indication
- 4. Antenna interface
- 5. Electrical, reliability and radio characteristics
- 6. Mechanical dimensions
- 7. Storage and Manufacturing
- Appendix A: GPRS coding schemes
- Appendix B: GPRS multi-slot classes
M95 Hardware Design
M95_HD_V1.0 - 57 -
3.13. Network status indication
The NETLIGHT signal can be used to drive a network status indication LED. The working state
of this pin is listed in Table 18.
Table 18: Working state of the NETLIGHT
State
Module function
Off
The module is not running.
64ms On/ 800ms Off
The module is not synchronized with network.
64ms On/ 2000ms Off
The module is synchronized with network.
64ms On/ 600ms Off
GPRS data transfer is ongoing.
A reference circuit is shown in Figure 36.
Module
300R
4.7K
47K
VBAT
NETLIGHT
Figure 36: Reference circuit of the NETLIGHT
3.14. Operating status indication
The STATUS pin is set as an output pin and can be used to judge whether module is power-on. In
customer’s design, this pin can be connected to a GPIO of DTE or be used to drive an LED in
order to judge the module’s operation status. A reference circuit is shown in Figure 37.
Table 19: Pin definition of the STATUS
Name
Pin
Function
STATUS
12
Indication of module operating status