Black Box MD1640A, MD1641A manual 131

		CHAPTER 9: DIP-Switch Settings
AS/400 Mode Enabled	=	Switch #4 DOWN
AS/400 Mode Disabled	=	Switch #4 UP
Factory Default Setting	=	UP

Switch #4

Unix UUCP Spoofing

(Asynchronous Mode/Leased Line/Dial-Up)

The Series II Modem can be configured for use with Unix equipment which employs ACK flow control to monitor data integrity. The Modem can do "UUCP spoofing", where the modem is able to generate ACKs at the DTE interface. Data then is transmitted more time-efficiently, because the delay of waiting for data to be received then waiting for the ACK to be returned at the remote end, is eliminated. Placing DIP- Switch #4 in the DOWN position enables UUCP spoofing.

UUCP Spoofing Enabled	=	Switch #4 DOWN
UUCP Spoofing Disabled	=	Switch #4 UP
Factory Default Setting	=	UP

Switch #5

Enable/Disable Auto-Answer - "Ans"

(Asynchronous Mode/Synchronous Mode/Dial-Up)

In some originate-only applications, you may wish to disable the Series

IIModem's automatic answering capabilities. This may be true if you have a telephone set attached to a modem and wish to receive voice calls that you yourself would answer instead of the modem. Place DIP- Switch #5 in the UP position to enable Auto-Answer. Place DIP-Switch #5 in the DOWN position to disable Auto-Answer.

Auto-Answer Enabled	=	Switch #5 UP
Auto-Answer Disabled	=	Switch #5 DOWN
Factory Default Setting	=	UP

Switch #5

Originate/Answer Mode

(Asynchronous/Synchronous Mode/Leased Line)

The Series II Modem functions in either Originate mode or Answer mode. Place DIP-Switch #5 in the DOWN position to enable Originate mode. Place DIP-Switch #5 in the UP position to enable Answer mode.

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