Product specifications

SM811 and TP868 Appendix A Hardware Units
280 3BSE036351-510 A
Indicators
Technical Data
Table 72. SM811 – LED Indicators
Designation/Color Function
F(ault) /Red Unit error detected. Controlled by Control
Software. Set and cleared by the Hardware during
controller Reset.
R(un) /Green Operational. Controlled by the Control Software.
Cleared by the Hardware during controller Reset.
ACCESS EN(abled) /Yellow Access Enable switch active.
DEGR(aded) MODE /Yellow Reserved for future use.
PRIM /Yellow Indicates that the unit is used as the primary
SM811.
SYNC(hronized) /Yellow Indicates that the SM811 is synchronized.
Flashes during SM811 synchronization.
Table 73. SM811 Specifications
Item Value
Memory •4 MB flash PROM (firmware storage).
•32 MB of SDRAM.
Galvanic isolation Ye s
Connectors • One 7 pin screw connector
• One RJ45 connector (SM Link)
Current consumption
(from CEX-Bus 24 V DC)
160 mA typical (250 mA max)
Power dissipation 3.8 W typical