Module Visual Diagnostics

General

Three LEDs are located on the front panel of TSX SCY 11601/21601 modules. These LEDs display information on the module's operating status and on the communication status of the built-in serial link.

The host channel's communication status is set by the ERR and COM LEDs in the PCMCIA cards on the serial or Fipway link.

LED meaning:

RUN	ERR	CH0	Comments
	(1)	(1)	Module powered-down or module failure
			No communication on the built-in channel
		(2)	Communication on built-in channel
		(1)	Serious fault on built-in channel
			Configuration fault. No device OK on the channel
			Device fault on built-in channel (only for TSX SCY 21601)
			Self-tests running
Key:
Off			Flashing
On			(1) Neutral status (2) Line activity display