Huawei MG323 manual Pin Name, Description, DC Characteristics, Normal

	HUAWEI MG323 GSM M2M Module
	Hardware Guide					Description of the Application Interfaces
Pin	Pin Name			I/O	Description		DC Characteristics (V)
No.
	Normal	MUX					Min.	Tpy.	Max
17	NC	-		-	Not connected, please		-	-	-
					keep this pin open
18	GND	-		-	Ground		-	-	-
19	NC	-		-	Not connected, please		-	-	-
					keep this pin open
20	TERM_ON	-		I	Power on/power off		-	internal	-
					control			pulled up
21	NC	-		-	Not connected, please		-	-	-
					keep this pin open
22	RESET	-		I	Hardware reset		–0.40	2.80	3.20
23	NC	-		-	Not connected, please		-	-	-
					keep this pin open
24	UART1_DCD	-		O	DCE data carrier detect		–0.40	2.80	3.20
25	LED_STATUS	-		O	Network status		–0.40	2.80	3.20
					indication
26	NC	-		-	Not connected, please		-	-	-
					keep this pin open
27	NC	-		-	Not connected, please		-	-	-
					keep this pin open
28	UART1_CTS	-		O	DCE clear to send		–0.40	2.85	3.25
29	UART1_RD	-		O	DCE transmit data		–0.40	2.85	3.25
30	NC	-		-	Not connected, please		-	-	-
					keep this pin open
31	NC	-		-	Not connected, please		-	-	-
					keep this pin open
32	UART1_DTR	-		I	DCE data terminal		–0.40	2.80	3.20
					ready
33	UART1_TD	-		I	DCE receive data		–0.40	2.80	3.20
34	UART1_RTS	-		I	DCE request to send		–0.40	2.85	3.25
35	VCOIN	-		P	Standby power input of		2.00	3.00	3.15
					the RTC
36	UART1_DSR	-		O	DCE data set ready		–0.40	2.80	3.20
37	NC	-		-	Not connected, please		-	-	-
					keep this pin open
38	UART1_RING	-		O	DCE ring indicator		–0.40	2.80	3.20
Issue 06 (2013-06-13)				Huawei Proprietary and Confidential					15
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