Tyco MX4428 technical manual Programming, Output State Under Exceptional Circumstances

Document: LT0273	MX4428 MXP Engineering / Technical Manual
	Device Information and Programming

3.3.1PROGRAMMING

The programming of the output functions is done by setting the “mode” value for the RIM800, SNM800, and 814I, and by one of the 7 device parameters for the 814H, 814PH, and 814CH. The LPS800 is programmed as an SNM800.

For example the following are the settings for the 814I.

Mode	Functional Base Control	Remote LED Control
0	Circuit Alarm	Circuit Alarm
1	Circuit Alarm	Relay
2	Circuit Alarm	Point Alarm
4	Relay	Circuit Alarm
5	Relay	Relay
6	Relay	Point Alarm
8	Point Alarm	Circuit Alarm
9	Point Alarm	Relay
10	Point Alarm	Point Alarm

The value must be chosen from the above table to give the desired settings for controlling the functional base and the remote LED.

For the 814PH and 814CH, programming of the “enhancement multiplier” is included in the same parameter. The desired enhancement multiplier must be multiplied by 16 and the result added to the above numbers. The tables in the sections for these detectors (3.9.3 and 3.10.3) include the result when the default enhancement multiplier is used.

For the 814H detector and for an 814PH or 814CH with enhancement disabled, the “enhancement multiplier” is irrelevant and therefore the above numbers may be entered directly if desired. The global defaults for parameter 6 for all these detector types should always include the desired enhancement multiplier * 16.

For the SNM800, other options are also included in the mode. Refer to section 3.22.4 for details.

3.3.2OUTPUT STATE UNDER EXCEPTIONAL CIRCUMSTANCES

All outputs retain their state if the MX4428 stops polling the responder (e.g. processing is stopped), or if the MXP stops polling the devices (e.g. due to a new configuration download from the MX4428). If a detector is removed from a relay or sounder base, the relay or sounder output turns off.

If power to the MXP is lost, loop powered sounder bases turn off. RIM800 and SNM800 outputs, relay bases and possibly externally powered sounder bases usually retain their state until MXP power is restored, then turn off when polling resumes (which may take some minutes if the MXP has been off for some hours and lost its configuration), then revert to ON after a few seconds if this is the correct state.

Issue 1.5 24 March 2006 Page 3-11