MT64DSU

MULTI-TECH SYSTEMS, INC.

MT64DSU

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í CSU/DSU will operate in synchronous mode	SW1/5	On
CSU/DSU will operate in asynchronous mode	SW1/5	Off
í RTS signal forced high	SW1/6	On
RTS signal normal	SW1/6	Off
í DSR signal forced high	SW1/7	On
DSR signal normal	SW1/7	Off
í Local loopback test disabled	SW1/8	On
Local loopback test enabled	SW1/8	Off
í Digital loopback test disabled	SW1/9	On
Digital loopback test enabled	SW1/9	Off
í Remote loopback test disabled	SW1/10	On
Remote loopback test enabled	SW1/10	Off
í Test pattern disabled	SW1/11	On
Test pattern enabled	SW1/11	Off
í Elastic store disabled	SW1/12	On
Elastic store enabled	SW1/12	Off
í 4-wire line is connected	SW2/1	On
2-wire line is connected	SW2/1	Off
í Leased line is connected	SW2/2	On
Switched line is connected	SW2/2	Off
í DTR signal forced high	SW2/3	On
DTR signal normal	SW2/3	Off
í Factory configured - do not alter	SW2/4	N/A

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
SD	Red	On	CSU/DSU is transmitting data
SD	Red	Off	CSU/DSU is not transmitting data
RD	Red	On	CSU/DSU is receiving data
RD	Red	Off	CSU/DSU is not receiving data
CD	Red	On	Carrier signal detected
CD	Red	Off	Carrier signal not detected
CTS	Red	On	CTS signal is high
CTS	Red	Off	CTS signal is low
RTS	Red	On	RTS signal is high
RTS	Red	Off	RTS signal is low
OL	Red	On	Network signal detected
OL	Red	Off	Network signal not detected
TM	Red	On	CSU/DSU is in test mode
TM	Red	Off	CSU/DSU is not in test mode
TM	Red	Blinking	Error detected in test pattern

Proprietary AT Command Set

AUTO-ANSWER
Type:	Register
Format:	AT [cmds] S0=n [cmds]
Description:	Controls when the CSU/DSU will automatically answer an incoming call.
Command		Function
S0=0		Auto-answer disabled.
S0=1		CSU/DSU will always answer incoming calls.
í S0=2		CSU/DSU will answer incoming calls when DTR signal is high.

DATA LENGTH
Type:	Register
Format:	AT [cmds] S12=n [cmds]
Description:	Selects how many data bits will be transmitted.
Command		Function
í S12=0		8 data bits.
S12=1		7 data bits.

DATA PARITY
Type:	Register
Format:	AT [cmds] S14=n [cmds]
Description:	Selects what type of parity bit will be transmitted.
Command		Function
í S14=0		No parity.
S14=1		Even parity.
S14=2		Odd parity.

DATA STOP
Type:	Configuration
Format:	AT [cmds] S13=n [cmds]
Description:	Selects how many stop bits will be transmitted.
Command		Function
í S13=0		1 stop bit.
S13=1		1.5 stop bits.
S13=2		2 stop bits.

DIAL MODE - ASYNCHRONOUS
Type:	Register
Format:	AT [cmds] S15=n [cmds]
Description:	Selects how the CSU/DSU will perform dialing in asynchronous mode.
Command		Function
S15=0		Asynchronous dialing disabled.
S15=1		Dial number in memory location 0 on DTR going high.
í S15=2		AT dialing enabled.
S15=3		Dial number in memory location 0 on DTR going high and AT dialing enabled.

DIAL MODE - SYNCHRONOUS
Type:	Register
Format:	AT [cmds] S2=n [cmds]
Description:	Selects how the CSU/DSU will perform dialing in synchronous mode.
Command		Function
S2=0		Synchronous dialing disabled.
S2=1		Dial number in memory location 0 on DTR going high.
í S2=2		V.25bis dialing enabled.
S2=3		Dial number in memory location 0 on DTR going high and V.25bis dialing enabled.

DSR SIGNAL
Type:	Register
Format:	AT [cmds] S9=n [cmds]
Description:	Controls the behavior of the DSR signal.
Command		Function
í S9=0		DSR forced high.
S9=1		DSR low when off-line or in test mode.

ECHO CANCELLER
Type:	Register
Format:	AT [cmds] S7=n [cmds]
Description:	Controls the echo canceller tone.
Command		Function
í S7=0		Echo canceller tone disabled.
S7=1		Echo canceller tone enabled.

INACTIVITY TIMER
Type:	Register
Format:	AT [cmds] S3=n [cmds]
Description:	Selects how long the line must be inactive for the CSU/DSU to disconnect.
Command		Function
í S3=0		Disconnect on low DTR only.
S3=1		Set inactivity timer to 10 minutes.
S3=2		Set inactivity timer to 30 minutes.
S3=3		Set inactivity timer to 60 minutes.
S3=4		Set inactivity timer to 10 minutes and disconnect on low DTR.
S3=5		Set inactivity timer to 30 minutes and disconnect on low DTR.
S3=6		Set inactivity timer to 60 minutes and disconnect on low DTR.
S3=7		Do not disconnect on inactivity or low DTR.

REDIAL
Type:	Register
Format:	AT [cmds] S1=n [cmds]
Default:	0
Range:	0 - 99
Unit:	1 redial
Description:	Sets how many times the CSU/DSU will attempt to redial a failed call.

REMOTE CONFIGURATION REQUEST
Type:	Register
Format:	AT [cmds] S19=n [cmds]
Description:	Controls requests for remote configuration.
Command		Function
í S19=0		Remote configuration requests denied.
S19=1		Remote configuration requests granted.

RESET
Type:	Immediate
Format:	AT [cmds] *Rn [cmds]
Description:	Resets the CSU/DSU to power-up status.

RTS SIGNAL
Type:	Register
Format:	AT [cmds] S8=n [cmds]
Description:	Controls the behavior of the RTS signal.
Command		Function
í S8=0		RTS forced high.
S8=1		RTS follow CTS.

SYNCH/ASYNCH MODE
Type:	Register
Format:	AT [cmds] S4=n [cmds]
Description:	Selects whether the CSU/DSU is in synchronous or asynchronous mode.
Command		Function
í S4=0		CSU/DSU is in asynchronous mode.
S4=1		CSU/DSU is in synchronous mode.

TRANSMIT PROFILE
Type:	Immediate
Format:	AT [cmds] *Wn [cmds]
Description:	Sends the current S-Register and switch settings to the remote CSU/DSU.

V.25bis FORMAT
Type:	Register
Format:	AT [cmds] S16=n [cmds]
Description:	Selects bit- or byte-oriented dialing for V.25bis mode.
Command		Function
í S16=0		Bit-oriented dialing.
S16=1		Byte-oriented dialing.

Proprietary V.25bis Command Set

DIAL STORED NUMBER
Type:	Immediate
Format:	CRSnn
Description:	Dials the number stored in memory location nn.