DS71-MD4 Serial host and 56k Modem
10
Local Modem Option
Figure 5
Ring to Answer
This option sets the number of rings before the unit answers.
Connectivity Timeout
This option sets the continuous connectivity time (5 to 255 minutes) before the modem automatically
disconnects.
Inactivity Timeout
This option sets the time the modem will automatically disconnect, if there is no activity equaling the
programmed amount of time (1 to 120 minutes).
Cabling
RJ-45 Cables and Adapters
DS71-MD4 EIA-232 RJ-45 Signal
Pin EIA 232
Signal
Signal
Direction
Description
1 DTR Out
Handshake, Line Driver Inactive State = High: +12V when power is
applied. Used as a handshake line to enable/disable the receiving of
characters.
2 GND Signal Ground
3 RTS Out
Handshake, Line Driver Inactive State = High: +12 V when power is
applied. Not used to enable/disable.
4 TX Out Transmit Data Out
5 RX In Receive Data In
6 DSR In
Handshake In. –12V when not used.
7 GND
Signal Ground, when Jumper JP6-2 is connected to JP6-3. In order for the
module to take advantage of “DCD Logon/Logoff” and “Auto Connect
Port”, Jumper JP6-2 is connected to JP6-1 providing DCD In.
8 CTS In
Used as a handshake line to enable/disable the receiving of characters.
Local Modem Option:
Rings to Answer ....................1 Auto-answer 1-4, Default 2
Connectivity Timeout ...............2 5-255 minutes, Default 60 minutes
Inactivity Timeout .................3 1-120 minutes, Default 0
Exit ...........................X, CR
Enter Request :
