Installation Manual

Table Of Contents
CPU and Data Receiver LED Indicators:
PCB ID PCB Label Color Function
D1000 RESET Red Lit during reset condition
D0908 CPU ACT. Green Flashes to indicate processor activity
D0909 BATT LOW Red Lit when battery is low
D1001 Temp CRIT Green Lit when temperature is critical
D0800 LAN LINK/ACT Green Lit indicates network condition; Flashing at packet rate indicates activity
D0801 LAN 100BASET Red Lit indicates 100BaseT connection
D0802 LAN DUP/COL Yellow Lit indicates duplex mode; Flashing at paced rate indicates collisions
D0500 SDU ACT Green Flashes at Biphase data packet rate
D0701 CONSOLE Green Lit when RS-232 connection exists
D0702 PRINTER Green Lit when RS-232 connection exists
D0700 ALARM Green Lit when RS-232 connection exists
D0900 LED1 Red Lit when flash memory is getting updates
D0901 LED2 Green No function
D0902 LED3 Yellow No function
D0903 LED4 Red No function
D0904 LED5 Green No function
D0905 LED6 Yellow No function
D0906 LED7 Red No function
D0907 LED8 Green Flashing indicates keyboard polling activity
Table 9.3: LED Indicators
102 en | Troubleshooting Guide LTC 8900 Series
2016.04 | 10.7 | F.01U.323.096 Installation Manual Bosch Security Systems, Inc.