LED Description

The LAN ports on the CRMX module provide LEDs, as shown in the following figure and described in the subsequent table:

■ CRMX Module without Dry-Contact Relays:
● New Hardware Revision:

● Old Hardware Revision:

m1kb_sbc_crmx-led_wan

The old hardware revision provides an unused WAN port that is covered by a metal plate.

■ CRMX Module with Dry-Contact Relays:

m1kb_sbc_crmx_dry_led

CRMX Module LED Description

Item #

LED Name

Color

State

Description

1

0/1, 0/2, 0/3

Green

On

Ethernet link established.

Flashing

Data is being received or transmitted.

-

Off

No Ethernet link.

2

0/0 or STATUS (Applicable only to CRMX with Dry-Contact Relays or covered WAN port)

Red

On

Reset button has been pressed.

Flashing
■ Under-voltage condition on CRMX module.
■ Booting up phase (U-boot) of the operating system kernel has completed successfully.

Note: When ordered with dry-contact relay interfaces, the LED label is STATUS. For devices without dry-contact relay interfaces and with a covered WAN port, the label is WAN (even though WAN port interface is not supported).

Green

On

Dry-contact relay alarm states. For more information, see Connecting a Dry-Contact Relay Alarm System.

Note: When ordered with dry-contact relay interfaces, the LED label is STATUS.

Orange

On

Red

On

-

Off