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User Guide
Landmark Technic
Signal Processor
3.3.1 Alarm output connection schedule
The Alarm output connection schedule is given in Fig. 5 and Table 1.
The Alarm relay contact rating is 50V a.c. or d.c. at 0.1A.
It is recommended that a twisted pair connection be used.
3.3.2 CMD (Command) input connection schedule
The CMD (Command) input connection schedule is given in Fig. 5 and Table 1.
The command signal is inactive when the voltage is >3.0V or open circuit
(i.e. Track). The command signal is active when the voltage is <1.5V or short
circuit (i.e. Hold).
The command input can be controlled via a remote switch, as shown in Fig. 6
or via potential-free contacts as shown in Fig. 7.
It is recommended that a twisted pair connection be used.
3.3.3 Output (Retransmission output) connection schedule
The Output (retransmission output) connection schedule is given in Fig. 5 and
Table 1.
It is recommended that a screened twisted pair cable is used.
3.3.4 Thermometer output connection schedule
The thermometer output connection schedule is given in Fig. 5 and Table 1.
It is recommended that 6-way screened cable is used.