Multitech MT2834MR Owner's Manual page 70

PN 88300150
Switch #10
Leased Line/Dial-Up Operation - "DDD"
(Asynchronous/Synchronous Mode/Leased Line/Dial-Up)
The MT2834MR can operate in both leased-line or dial-up modes. This switch controls leased-line/dial-up
operation. For dial-up operation, place DIP-Switch #10 in the UP position. For leased-line operation, place
DIP-Switch #10 in the DOWN position.
Dial-Up Operation
Leased Line Operation
(Factory Default Setting = UP)
Switch #11
"AT" Responses/Multi-Tech Responses
(Asynchronous Mode/Leased Line/Dial-Up)
In Asynchronous mode (DIP-Switch #12 DOWN), the MT2834MR responds with result codes according to
the Multi-Tech command response set or with the "AT" command response set (DIP-Switch #11 in the UP
position). The &Q command performs the same function of choosing AT or Multi-Tech responses and is
explained further in Chapter 5.
"AT" Responses (&Q1)
Multi-Tech Responses (&Q0)
(Factory Default Setting = DOWN)
For more information on Result Codes, refer to Chapter 3.
Switch #11
Internal/External Clocking
(Synchronous Mode/Leased Line/Dial-Up)
With the MT2834MR in Synchronous Mode, the transmit clock can be supplied by the DTE on pin 24 of
the RS232C/V.24 interface by DIP-Switch #11 positioned UP. DIP-Switch #11 in the DOWN position
enables the DCE to control clocking.
External Clock (pin 24)
Internal Clock (pins 15/17)
(Factory Default Setting = DOWN)
Switch #12
Asynchronous/Synchronous Operation - "Sync"
(Asynchronous/Synchronous Mode/Leased Line/Dial-Up)
The MT2834MR can operate in both asynchronous mode and synchronous mode. When in synchronous
mode, start and stop bits are eliminated. The modem's internal clock circuits on the RS232C/V.24 pins 15
and 17, are activated. The MT2834MR's Command Mode will not be accessible in the synchronous
mode. For synchronous operation, you may want to set the RTS forcing and CTS forcing DIP-Switches so
that both of signals act normally (not forced on).
Synchronous Operation
Asynchronous Operation
(Factory Default Setting = DOWN)
4/3/01
= Switch #10 UP
= Switch #10 DOWN
= Switch #11 UP
= Switch #11 DOWN
= Switch #11 UP
= Switch #11 DOWN
= Switch #12 UP
= Switch #12 DOWN
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