Mitsubishi Electronics MAM-GM20 Technical specifications GM series, Firmware, Serial interfaces

Appendix					Technical data of the MAM series
Technical specifications GM series
	Features		Data
	Network	Type	GSM/GPRS Class 10, Dual Band 900/1800 MHz (GSM series)
			FME plug (male), coaxial, Impedance: 50 Ohm,
	Antenna		Reception frequency:	925 ... 960 MHz/	1805 ... 1880 MHz
			Transmission frequency:	880 ... 915 MHz/	1710 ... 1785 MHz
			Output:	2 W (900 MHz)	1 W (1800 MHz)
	Data transmission		300 bps – 14,4 kbps async., transparent/non transparent
			ITU-T (V.21,V.22, V.22bis, V.26ter, V.32, V.34, V.110)
	Fax transmission		Fax Group 3 / Class 1 and 2. 2400 bps – 14,4 kbps ITU-T (V.17, V.29, V.27ter)
			Data compression: MNP2, V.42bis
	Tab. 10-3:Technical specifications GM series
Technical specifications AM series
	Features		Data
	Network		Analog connection (PSTN, a/b Interface), RJ11
	Data transmission		300bps – 56kbps, ITU-T (V.90, V.34+, V.32bis, V.32, V.22bis, V.22, V.21), Bell 212A, Bell103
	Fax transmission		Fax G3 / Class 1, 2400bps – 14,4kbps, ITU-T (V.17, V.29, V.27ter, V.21 ch2)
	Error Correction/		V.42 / MNP 2-4, V.42bis / MNP5
	Data Compression
	Tab. 10-5:Technical specifications AM series
Firmware
	Features		Data
	Operating system		Commercial RTOS (real-time multitasking operating system) with
			C++ abstraction layer
	File system		Commercial DOS compatible Flash file system
			C++ abstraction layer
	External		TiXML: simple, text-based XML-like protocol for modem configuration.
	control protocol		External applications can create events / alarms by sending event commands.

Tab. 10-4: Firmware

The type and number of interfaces depends on the model.

Refer to the overview in section 2.6.

Serial interfaces

Interface		Data
		To ITU-T V.24, V.28, Hardware-Handshake
		D-Sub 9-pole, Socket
RS232	COM1	FIFO 16550, max. 230.400 bps,
		Signals: DTR, DSR, RTS, CTS, DCD, GND, RI, RxD, TxD
		Transmission distance 15m
	COM2	D-Sub 9-pole, plug, otherwise as for COM1
		To EIA/TIA-485
		5-pole screw terminal for T+, T-, R+, R-, 0 V
RS485/422		max 1.5 Mb/s, not isolated
	COM2	Termination integrated, activated via DIP switches
		Transmission distance max.1200 m
		depending on the transmission rate, bus system and cable type

Tab. 10-6:Serial interfaces

Mitsubishi Alarm Modem 10 - 2