Multitech MT2834MR Owner's Manual page 67

PN 88300150
Switch #2
Flow Control - &E4/&E5
(Asynchronous Mode/Leased Line/Dial-Up)
With Hardware Flow control, the modem uses its RS232C/V.24 interface to control the flow of data from
the computer or terminal to which it is attached. CTS signal on Pin 5 of the RS232C/V.24 is brought low
to stop the flow of data, and is brought high to restart it. Place DIP-Switch #2 in the UP position to enable
Hardware Flow control (&E4). Xon/Xoff Flow control (&E5) is another method of flow control in which
Xon/Xoff characters in the data dictates the start and stop of data flow from the computer or terminal.
Place DIP-Switch #2 in the DOWN position to enable Xon/Xoff Flow control.
Hardware Flow Control (&E4)
Xon/Xoff Flow control (&E5)
(Factory Default Setting = UP)
Switch #2
SDLC/BSC Selection
(Synchronous Mode/Leased Line/Dial-Up)
Synchronous Data Link Control (SDLC) and Binary Synchronous Control (BSC) are two error correction
protocols used in the IBM Mainframe environment. Place DIP-Switch #2 in the UP position to select SDLC
mode. Place DIP-Switch #2 in the DOWN position for BSC mode.
SDLC Mode
BSC Mode
(Factory Default Setting = UP)
Switch #3
Enable/Suppress Responses - "Q"
(Asynchronous Mode/Dial-Up)
In some applications in Asynchronous mode, you may want to suppress all responses from the modem.
Place DIP-Switch #3 in the DOWN position to enable result code responses (Q0). Place DIP-Switch #3 in
the UP position for answer mode without responses and echo off, (but with originate still intelligent)(Q2).
Enable Responses: Originate/Answer (Q0)
= Switch#3 DOWN
Suppress Responses: Answer (Q2)
= Switch #3 UP
(Factory Default Setting = DOWN)
Switch #3
dB Transmission Levels
(Asynchronous/Synchronous Mode/Leased Line)
The MT2834MR can adjust to dB transmission levels required by some phone carriers. With DIP-Switch
#3 in the DOWN position, the MT2834MR transmits at 0 db. With DIP-Switch #3 in the UP position,
transmission is at -15dB.
0dB Transmission
-15dB Transmission
(Factory Default Setting = UP)
Note: dB transmission levels on International models may be different from those values shown above.
Note: Switch #3 has no effect in leased line mode in the MT2834MRK.
4/3/01
= Switch #2 UP
= Switch #2 DOWN
= Switch #2 UP
= Switch #2 DOWN
= Switch #3 DOWN
= Switch #3 UP
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