Instruction manual

Configuration Page 3-7
Eagle 450 Installation and Technical Manual, Rev. 00
If you do mix board types, you can put any supported I/O board in any expansion slot. However, be
careful to use the correct port numbers when defining the ports in the initialization file, as discussed in
Chapter 4. We do recommend placing any AM-314 boards after any other board(s) in the computer, but
this is not required.
If you are going to use the older AM-314 or AM-318-00 boards in an Eagle 450, we recommend
adding AM-90 Lightning boards to them, especially if you live in an area prone to
thunderstorms. Even if lightning isn’t a frequent problem for you, the AM-90 may simplify
cabling, and it never hurts to have extra protection against power surges.
You can also install an AM-338 RJE card into one of the serial I/O expansion slots. This board provides
a bisync interface for RJE communication with mainframe computers. Since it occupies an expansion
slot, it reduces the maximum number of serial ports you can install to 24.
Signal Pinouts
All serial ports on the Eagle 450 support only RS-232 communication; they do not support RS-
422.
The eight on-board serial ports and the ports on the AM-318-10 use the same pinouts for their RJ-45
jacks (these pinouts are correct for any AM-90 RJ-45 port; they are the same as for the AM-359 card):
Pin # Description
1 Chassis ground (shield) GND
2 Clear to send CTS
3 Transmit data TXD
4 Request to send RTS
5 Receive data RXD
6 Data terminal ready DTR
7 Signal ground GND
8 Data carrier detect DCD
Pins are numbered from left to right, looking into the port from outside the computer chassis.
The AM-314 uses this pinout scheme for its DB-9 connectors:
Pin # Description
1 Unused
2 Receive data RXD
3 Transmit data TXD
4 Clear to send CTS
5 Request to send RTS
6 Unused
7 Signal ground GND
8 Data carrier detect DCD
9 Data terminal ready DTR