Page 54 of 101
DWG ID: 181-0101-00A
Date: 2003-09-26
Nomenclature
I/O
Description
AI1
AI2
AI3
AI4
AI5
AI6
AI7
AI8
Analog
inputs
0 to 5 V dc, high Z of protection op-amp. Jumper
selectable 249
c
, 1-% resistor is included for 2-wire or
3-wire, 0 to 20 mA dc input. Protection op-amp limits
voltage to
Y
P 10-bit A/D converter to 4.950 V.
DI1
DI2
DI3
DI4
Discreet
(digital)
inputs
5 V CMOS logic inputs to
Y
P. Inputs are pulled up to a
high. May be activated (pulled low) with an open
collector BJT, open drain FET, switch, or relay.
AO1
AO2
AO3
AO4
Analog
outputs
0 to 4.995 V dc into minimum 10 k
c
load.
DO1
DO2
DO3
DO4
Discreet
outputs
Open drain FET, will handle up to 50 V dc and sink up
to 115 mA.
The circuit card assembly also has a D-sub 9 female connector for a 2
nd
RS232 serial
port. This serial port can be used for diagnostics while the unit is running and the serial
port on the Controller CCA is in use.
Optionally the I/O CCA can be supplied without U1, the RS232 transceiver IC, so that a
GPS Receiver CCA, which uses the 2
nd
RS232 port, can be installed in the Talon UDC
radio modem unit.
For pinout of the connectors on the I/O CCA see section 7.
13
TALON COMMAND SET
All TALON commands are documented below, in alphabetical order. The underlined
characters in a command’s name show the short-cut version of that command. Required
or optional parameters are shown after the command name, as are allowable ranges of
values, where appropriate.
8BITCONV {ON | OFF}