User's Manual

All the External input line pins will generate log messages when the state of a pin changes, for example
Info,External:Input 4 changed state to 0. The External input() API function can also be called to read the state
of all inputs as a number. The inputs allow connection to either switches or any external sensor which provides
a contact closure or TTL compatible signal.
When designing external hardware, we strongly advise checking the design with Magellan beforehand to verify
that it will be electrically compatible.
This connector also includes the debug serial port of the CPU, which is used as the system console. These
pins are 3V levels only, so a proper RS-232 driver must be used externally if this connection is required.
Refer to Application Programmer’s Guide (40-01-000-DOC) for more information.
4.2.3 CONNECTING A READER TO A COMPUTER USING USB
Connect the MARS-24E Reader to a host computer using the USB data communication cable by plugging the USB cable
into the MARS-24E USB device port and the host computer USB port.
Only one Magellan reader can be connected to the PC via USB at a time (limited by Windows).
When the USB connection is used only a screened USB cable should be used.
MARS-24E with the USB communication cable and power cable
4.2.4 CONNECTING A READER TO A COMPUTER USING ETHERNET
Connect the MARS-24E Reader to a host computer using a cross over Ethernet cable. Plug the Ethernet cross over cable
into the MARS RJ45 socket (Ethernet port) and the network interface port on the PC.
Always connect the Ethernet cable before power is applied to the reader.
07-Jul-07 63-70-006-DOC 19
MARS-24E
User Manual