User's Manual

APEX™ Exciter Incorporating FLO™ Technology
Navigating the LCD Display Screens Details of the System Setup Screens
Page: 3-44 888-2604-001 03/08/07
WARNING: Disconnect primary power prior to servicing.
3.6.5.3 External I/O Interface to Transmitter Control Logic
One of the functions of the he External I/O board is the parallel interface connections
between the exciter and the transmitter control logic. In the Exciter Setup screen, shown in
Figure 3-32, on page 3-35, the choice of transmitters is presently limited to the Atlas
transmitter.
A parameter on the External I/O Setup screen is labeled Pin. It displays the connector pin
number for the associated exciter (status or control) channel number of the External I/O
board. The channel programming and channel to input/output connector J1 assignments are
fixed.
A list of channel entries, J1 pin assignments, corresponding channel numbers, and the
function (input or output, and its description) is listed in Table 3-4.
.
Table 3-4 UHF External I/O Parallel Control Interface Connector J1
J1 Pin
Number Input/Output and Channel No. Description
1 Status Input 1 Power Raise
2 Status Input 3 Power Lower
3 Analog Input 3 No Con.
4 Analog Output 1 No Con.
55No Con.
6 Status Input 7 Mute Command
79No Con.
8 Status Output 11 Mute Status
913No Con.
10 Status Input 14 Equalizer Reset
11 Status Input 15 Equalizer Hold
12 Analog Input 1 VSWR Fold back (dc voltage sample)
13 Analog Input 2 No Con.
14 Status Input 2 RS232 Enable Command (Exciter Active)
15 Status Output 4 Exciter RF Presences Status
16 Analog Input 4 No Con.
17 Analog Output 2 No Con.
18 6 No Con.
19 8 No Con.
20 Status Input 10 Spare Input
21 Status Output 12 Spare Output
22 - 25 Ground