Multi-Tech Systems MTCBA-G-F4 manual RS232 15-Pin Connector Pinout, AT Command Information, Ccit

				Chapter 1 – Product Description and Specifications
RS232 15-Pin Connector Pinout
		5		1
		10		6
		1 5		11
	PIN	EIA	CCIT	Designation
RS-232	1	DCD	109	Data Carrier Direct
	6	RX	104	Receive Data (out)
	2	TX	103	Transmit Data
	8	DTR	108.2	Data Terminal Ready
	9	GND		Signal Ground
	7	DSR	107	Data Set Ready
	12	RTS	105	Request to Send
	11	CTS	106	Clear to Send
	13	RI	125	Ring Indicator
Audio	4	MICROPHONE (+)
	5	MICROPHONE (-)
	10	SPEAKER (+)
	15	SPEAKER (-)
Boot	3	BOOT		For factory use only.
Reset	14	RESET		To reset, connect to GND momentarily (typical:
				2mSec). Open for normal operation.

AT Command Information

AT commands for the GPRS wireless modem are published in a separate Reference Guide included on the MultiModem CD and posted on the Multi-Tech web site.

IP commands for GPRS modems are also published in a separate Reference Guide included on the MultiModem CD and posted on the Multi-Tech web site.

Multi-Tech Systems, Inc. MultiModem GPRS Wireless Modem User Guide 9