Tyco technical manual 22.3 SNM800 Field Wiring, 22.4 MX4428 Programming Options SNM800, Eol ?

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

3.22.3SNM800 FIELD WIRING

				+	Power
				-	Supply
27k	+	+	+
0.5W	-	-	-
EOL					Power to
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					device
ANALOG LOOP					ANALOG LOOP
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DEVICE					DEVICE
		L+ L- L+ L- S+ S- R+ R- I+ I-		I+ I-

SNM800 SOUNDER

NOTIFICATION MODULE

Figure 3.8 SNM800 Field Wiring

It is recommended that the external supply covers only one zone, or the power wiring be arranged so that an open circuit in the power feed cannot affect more than one zone. A loop arrangement with supervision and a reverse-feed relay can be used to achieve this - refer to Product Bulletin PBF0200.

3.22.4MX4428 PROGRAMMING OPTIONS - SNM800

The mode selects the control source for the SNM800 output, load supervision, and EOL supervision. By default (mode = 15) the output follows the logical relay, the external supply is supervised, and the EOL is supervised.

Parameter	Description				Default
Mode	Mode	Output Control	Monitor	Monitor	15
			Supply ?	EOL ?
	8	Cct Alarm	No	No
	9	Cct Alarm	No	Yes
	10	Cct Alarm	Yes	No
	11	Cct Alarm	Yes	Yes
	12	Relay	No	No
	13	Relay	No	Yes
	14	Relay	Yes	No
	15	Relay	Yes	Yes
P0
P1	Normal to o/c fault threshold				221
P2	Normal to s/c fault threshold				20
P3	Supply fault threshold				200
P4
P5
P6

Page 3-46 24 March 2006 Issue 1.5