Computer Automation Technology CAT-800, Manual

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6-4
Header Connector Definitions
Header (P1)
This connector is used to format the microprocessor during manufacturing.
NOTE: Do no connect to this header.
Header (P2)
If Port #1 is supplied with discriminator audio it may be necessary to de-emphasize the audio. With the
jumper installed a capacitor will be connected across the feedback resistors of the RX1 audio amplifier.
This will lower the gain at the higher frequencies and produce the necessary de-emphasis. If processed
audio is supplied to the controller this jumper is not required.
Header (P3)
This connector is used to attach an AD-1000 audio delay or AP-100 audio processor board.
Header (P4)
If Port #2 is supplied with discriminator audio it may be necessary to de-emphasize the audio. With the
jumper installed a capacitor will be connected across the feedback resistors of the RX2 audio amplifier.
This will lower the gain at the higher frequencies and produce the necessary de-emphasis. If processed
audio is supplied to the controller this jumper is not required.
Header (P5)
If Port #3 is supplied with discriminator audio it may be necessary to de-emphasize the audio. With the
jumper installed a capacitor will be connected across the feedback resistors of the RX3 audio amplifier.
This will lower the gain at the higher frequencies and produce the necessary de-emphasis. If processed
audio is supplied to the controller this jumper is not required.
Header (P6)
If the link transmitter’s input is very sensitive and you find the TX2 audio level control is near its
minimum setting, install the jumper plug on P6 and readjust theTX2 control.
Header (P7)
If the link transmitter’s input is very sensitive and you find the TX3 audio level control is near its
minimum setting, install the jumper plug on P7 and readjust theTX2 control.
Header (P8)
This connector is used to interface the Digital Voice WAV Player to the CAT-800 Controller. It provides
power and the data and clock signals used to control the DR-800 while receiving a busy signal and play
back the audio from the DR-800.
Header (P10)
If the COR #1 jumper is installed a pull-up resistor will be added to the COR #1 input. This may be
required if the receiver’s COR circuit is specified as an open collector output. The COR will be considered
active LOW. Dipswitch #1 should be on.
If the COR #2 jumper is installed a pull-up resistor will be added to the COR #2 input. Dipswitch #2
should be on.
If the COR #3 jumper is installed a pull-up resistor will be added to the COR #3 input. Dipswitch #3
should be on.
Switch (S2)
This switch is used to up load new firmware using the Texas Instruments program. See Chapter 14 for
details.