User`s manual

64 www.rabbit.com EM1500 Configuration
5.1.10 Protocol Tab
This is an advanced setting that is only visible when View | Advanced is checked. This is where you
enable a serial port to be compatible with PC COM port redirectors. This is also where you specify pack-
etization options.
Figure 5.12 Protocol Tab (all 5 serial ports have the same options)
Modem Server
When checked, incoming connections will see this as an RFC2217 modem server.
Otherwise, a raw data link is established.
NOTE: This should be checked if you want to use a COM port redirector on a host PC to
allow the PC to talk to the serial port as if it was a local serial port.
Rabbit extensions
When checked, try to negotiate Rabbit extensions to RFC2217 protocol. This is rec-
ommended when connecting two EM1500s for use as a transparent serial bridge. If
the peer does not understand the extensions, this option will not cause any problems.
This is required if any packetizing options are specified.