User's Manual

9 - NC

Table 8 – serial port pin-out

To connect to a host controller, a pin-to-pin 9pin cable with D9 type connectors on both sides is

needed (1 male & 1 female). Shielding of this cable is recommended and its length shall not exceed

3 m.

3.4.7 Mini USB type connector

Pin-out of Mini-USB connector is shown in the following table:

Signal

1 USBCNX

2 DDM

3 DDP

4 -

5 GND

Table 9 – Mini USB pin-out

3.4.8 LED indicators

The GG864-2.4 has three led indicators:

1. GSM status

2. ARM status

3. SR status (fourth led indicator is not connected in this configuration).

(FRONT VIEW)

Figure 10 - Mini-USB connector front view