Diagnostic LEDs. Compac DCA

RX/3

TX/4

RX/4

TX/1

RX/1

DCD/1

TX/2

RX/2

CTS/2

TX/3

GSM Modem (Wavecom)

LED name on

board

Location

Diagnostic LEDs

Diagnostic LEDs

There are a number of diagnostic LEDs on the Com FMS board to assist in the diagnosis of comm's problems

Colour Operation

POWER

W/DOG

Near Dipswitches

Near Dipswitches

Green

Red

Adjacent Port #1 TTL plug

" " " "

" " " "

Adjacent Port #2 TTL plug

" " " "

" " " "

Adjacent Port #3 TTL plug

" " " "

Adjacent Port #4 TTL plug

" " " "

Green

Red

Green

Green

Red

Yellow

Green

Red

Green

Red

ON to indicate Power Supply working

1. Watchdog

2. Indicates software has stopped running

(may have restarted)

3. IC fitted incorrectly or leg broken/bent

Transmit data to Modem or Direct host

Receive data from Modem or Direct host

Handshaking line to Modem

To Audit Trail Printer

ON when Audit Trail Printer connected

Used for Receipt Printer and Commander

Only used when Gilbarco or Email pumps

Running on comms channel 2

Compac Industries Ltd.

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