FIRECLASS Fire detection system
PLX800 Loop Expansion Card Details
Installation Guide
Doc. version 2.0
31
12.1 PLX800 Loop Expansion Card Details
Fig. 25: PLX800 - Jumper, switch and terminal Positions
Item
Function
J1
Boot Mode jumper
J2
Watchdog Options jumper
SW1
DIP switch (Internal N-BUS address)
SW2
Reset button
XP1
Slot backplane (Internal NBUS) connec-
tor
XP2
Debug Port (RS232) connector
XP3
Auxiliary JTAG port for Loop micropro-
cessor
XP4
Auxiliary JTAG port for CPLD
RT1
Rheostat for loop 40V adjustment
XT1
Loop A connector
XT2
Loop B connector
XT3
Loop C connector
XT4
Loop D connector
Table 14: PLX800 Jumper, Connector and Switch Functions
Jumper
1-2
2-3
OPEN
J1Boot Mode
Disabled *
Enabled (use this when updating firm-
ware)
Disabled
J2Watchdog
Enabled *
Active (microprocessor in reset)
Disabled (use this setting when updating
firmware)
Table 15: PLX800 - Jumpers setting
* Default
State
Condition
Fixed On
Microprocessor failed
Table 16: PLX800 Microprocessor Status Optical Indicator
Blinking On/Off
0.5 seconds/0.5 seconds
Normal function
State
Condition
Table 16: PLX800 Microprocessor Status Optical Indicator
