Eddy Wireless SD Cards Series Especificaciones descargar pdf (Pagina 58)

M12 Hardware Design

M12_HD_V3.3 - 57 -

HIGH

LOW

120ms

Idle or talking

URC or

SMS received

Figure 40: RI behaviour of URC or SMS received

3.13. Network status indication

The NETLIGHT signal can be used to drive a network status indicator LED. The working state of

this pin is listed in Table 19.

Table 19: 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 transmission is ongoing.

A reference circuit is shown in the following figure.

Module

NETLIGHT

4.7K

47K

300R

VBAT

Figure 41: Reference circuit of the NETLIGHT

Quectel

Confidential

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 75 76

Sin comentarios

Eddy Wireless SD Cards Series Especificaciones Pagina 58