Specifications
73
Control Signal Operation
DCD
Input, ignored
Receive Data
Input, data into the EtherPath
Transmit Data
Output, Data from the EtherPath. The EtherPath only transmits
when it has characters to send and it is not flowed-off with
XON/XOFF or RTS/CTS flow control.
DTR
Output. Signal is enabled when the EtherPath has a valid LAN
connection to another device. This signal is low when powered on.
It goes high when a valid LAN connection is established, and
returns to low when that connection is disconnected.
Signal Ground
Common ground
DSR
Input. Used for connection control. If the EtherPath is configured
for “Hardware (Pin 6) Dial” and not “Forced ON”, the EtherPath
connects to a remote device via the LAN when the signal is
asserted. If configured for “Forced ON” and “Hardware (Pin 6)
Dial”, the EtherPath connects to the remote device upon power up.
If configured for “AT Dial”, and “From Interface”, the input must
be asserted before the AT Dial command will create a connection.
On units configured as a server, DTR must be high before an
incoming connection will be established.
