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116609-2221
6.3 LED Indicators
From left to right.
CH1:TD Transmitted Data (incoming serial data):
LED off • RS-232 TD =1, Mark (<–3V).
LED on • RS-232 TD =0, Space (>3V).
CH1: RD Received Data (outgoing serial data):
LED off • RS-232 RD =1, Mark (<–3V).
LED on • RS-232 RD =0, Space (>3V).
CH1: RTS Request To Send:
LED off • RS-232 RTS =Off (<–3V).
LED on • RS-232 RTS =On (>3V).
CH1: CTS Clear To Send:
LED off • RS-232 CTS =Off (<–3V).
LED on • RS-232 CTS =On (>3V).
PWR Power:
LED off • No internal power, (external power not connected).
LED on • Power OK.
CH2:TD Transmitted Data (incoming serial data):
LED off • RS-232 TD =1, Mark (<–3V).
LED on • RS-232 TD =0, Space (>3V).
CH2: RD Received Data (outgoing serial data):
LED off • RS-232 RD =1, Mark (<–3V).
LED on • RS-232 RD =0, Space (>3V).
CONFIG ED-20 working mode:
LED on • Configuration mode.
LED off • Application mode,
(or during start up of configuration mode).
NET Indication of network status:
LED off • Link Test failed (no network).
LED on • Link Test passed.
LED flashing • Data on Network (traffic).