SPACER 4Z8521 - Caterpillar

Status Indicator
Illustration 1 g01014891
Typical installation of the Status Indicator
(1) Status Indicator The status of the MSS is displayed by the status indicator in accordance with Table 1. The operator can use the status indicator to determine the status of the system or for troubleshooting.
Table 1
Status Indicators(1) Description
Red The MSS is armed.(2)
Green The MSS is disarmed.
The green LED will remain ON 30 seconds after power down (Grace Period). After the 30 seconds have passed, the MSS automatically returns to the "armed" mode.
(1) The LED's are illuminated during initial power-up in order to test the LED's.
(2) The red LED will remain ON while the key is in the ON position or until a valid key is read.