APPENDIX D: DIP-Switch Summary

Synchronous Mode

 

DIP-Switch

Condition

Effect

#1

UP*

DTR Dependent On interface

 

Down

DTR forced On at all times

#2

UP*

SDLC Mode On

 

Down

BSC Mode On

#3

UP

Command Mode Response Off

 

Down*

Command Mode Response On

#4

UP*

AS/400 Mode Off

 

Down

AS/400 Mode On

#5

UP*

Answer Mode On

 

Down

Originate Mode On

#6

UP*

Slave Clocking Off

 

Down

Slave Clocking On

#7

UP

RTS Dependent on interface

 

Down*

RTS forced on at all times

#8

UP

Command Mode Off

 

Down*

Command Mode On

#9

UP

Local Digital Loopback On

 

Down*

Remote Digital Loopback On

#10

UP*

Dial-Up Operation

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Image 166
Black Box MD1640A, MD1641A manual Synchronous Mode