Card Type	Modem (asynchronous)
Chipset	Ricochet
Maximum Data Rate	100Kbps raw data, approx. 28.8Kbps throughput
Data Modulation	Proprietary
Error Correction/Compression	Proprietary
Data Bus	Serial

CONNECTIONS
Function	Label	Function	Label
Antenna	ANT	DC power in	CN2
Signal strength button	BT1	LCD display	LCD
Serial port via micro-D connector	CN1	Power switch	SW1
Note: A standard DB-25 or Macintosh mini-DIN serial port is provided on included adapter cables.

POWER SWITCH
Setting	SW1
Off	Position 1
On, speaker disabled	Position 2
On, speaker enabled	Position 3

SUPPORTED STANDARD COMMANDS

Basic AT Commands

A, E, H, O, Q, V, W, X

&C, &D, &F, &K, &W

S-Registers

S0, S2, S3, S4, S5, S7

Note: See MHI help file for complete information.

UNIDENTIFIED COMMANDS
Command	Default
S390	Factory use only
S391	Factory use only
S392	Factory use only
S393	Factory use only

ICON STATUS
Format:			AT [cmds] S360=aabbccddeeff [cmds]
Default:			N/A
Range:			000000000000h - 000FFFFFFFFFh (hexadecimal)
Description:			Each pair of letters above indicated a hexadecimal byte pair, corresponding to the bitmap show below. The status of these bits indicate the status of the icons on the modem's LCD display.
Byte	Bit			Value		Function
1	7 - 0			00000000		Not used.
2		1, 0			00 01 10 11		"Message A Waiting" icon is off. "Message A Waiting" icon is blinking slowly. "Message A Waiting" icon is blinking quickly. "Message A Waiting" icon is on.
		3, 2			00 01 10 11		"Message B Waiting" icon is off. "Message B Waiting" icon is blinking slowly. "Message B Waiting" icon is blinking quickly. "Message B Waiting" icon is on.
		7 - 4			0000		Not used.
3		0			0 1		Lowest segment of signal strength bar is off. Lowest segment of signal strength bar is on.
		1			0 1		Second segment of signal strength bar is off. Second segment of signal strength bar is on.
		2			0 1		Third segment of signal strength bar is off. Third segment of signal strength bar is on.
		3			0 1		Highest segment of signal strength bar is off. Highest segment of signal strength bar is on.
		4			0 1		Signal strength bar segments that are off are not pulsing upwards. Signal strength bar segments that are off are pulsing upwards.
		5			0		Not used.
		7, 6			00 01 10 11		"Registered on Network" icon is off. "Registered on Network" icon is blinking slowly. "Registered on Network" icon is blinking quickly. "Registered on Network" icon is on.
4		0			0 1		Lowest segment of battery level bar is off. Lowest segment of battery level bar is on.
		1			0 1		Second segment of battery level bar is off. Second segment of battery level bar is on.
		2			0 1		Third segment of battery level bar is off. Third segment of battery level bar is on.
		3			0 1		Highest segment of battery level bar is off. Highest segment of battery level bar is on.
		4			0 1		Battery level bar segments that are off are not pulsing upwards. Battery level bar segments that are off are pulsing upwards.

ICON STATUS (CON'T)
Byte	Bit		Value		Function
4		5		0		Not used.
		7, 6		00 01 10 11		"Power On" icon is off. "Power On" icon is blinking slowly. "Power On" icon is blinking quickly. "Power On" icon is on.
5		1, 0		00 01 10 11		"Handshake" icon is off. "Handshake" icon is blinking slowly. "Handshake" icon is blinking quickly. "Handshake" icon is on.
		3, 2		00 01 10 11		"Terminal Ready" icon is off. "Terminal Ready" icon is blinking slowly. "Terminal Ready" icon is blinking quickly. "Terminal Ready" icon is on.
		5, 4		00 01 10 11		"Ring Indicator" icon is off. "Ring Indicator" icon is blinking slowly. "Ring Indicator" icon is blinking quickly. "Ring Indicator" icon is on.
		7, 6		00 01 10 11		"Radio Acquired" icon is off. "Radio Acquired" icon is blinking slowly. "Radio Acquired" icon is blinking quickly. "Radio Acquired" icon is on.
6		1, 0		00 01 10 11		"Encryption" icon is off. "Encryption" icon is blinking slowly. "Encryption" icon is blinking quickly. "Encryption" icon is on.
		3, 2		00 01 10 11		"Billing Zone" icon is off. "Billing Zone" icon is blinking slowly. "Billing Zone" icon is blinking quickly. "Billing Zone" icon is on.
		5, 4		00 01 10 11		"Network Busy" icon is off. "Network Busy" icon is blinking slowly. "Network Busy" icon is blinking quickly. "Network Busy" icon is on.
		7, 6		00 01 10 11		"Star Mode" icon is off. "Star Mode" icon is blinking slowly. "Star Mode" icon is blinking quickly. "Star Mode" icon is on.

SERIAL PORT STATUS
Format:			AT [cmds] S361? [cmds]
Default:			Read-only
Range:			0 - 31
Description:			Returns a value indicating the status of selected signals on the serial port.
Bit	Value			Function
0	0 1			RI signal is low. RI signal is high.
1		0 1			DCD signal is low. DCD signal is high.
2		0 1			CTS signal is low. CTS signal is high.
3		0 1			DSR signal is low. DSR signal is high.
4		0 1			RTS signal is low. RTS signal is high.
5		0			Not used.
6		0 1			Modem is not in bridge mode. Modem is in bridge mode.
7		N/A			The function of this bit is unidentified.

SLEEP MODE
Type:	Register
Format:	AT [cmds] S327=n [cmds]
Description:	Selects what criteria must be true for the modem to disconnect from the network and enter low-power sleep mode.
Command	Function
í S327=0	Low-power sleep mode disabled.
S327=1	Low-power sleep mode enabled; exit sleep mode if data is received.
S327=2	Low-power sleep mode enabled; exit sleep mode if DTR or RTS signals change state.
S327=3	Low-power sleep mode enabled; exit sleep mode if data is received or if DTR or RTS signals change state.
S327=4	Light dozing mode enabled.