Meter readings, Appendix c: checking system wiring, Continued – Tyco 4100U-S1 User Manual

Page 112

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C-2


Table C-1 lists the correct meter readings for indicating appliances and initiating devices.

Table C-1. Acceptable Zone and Signal Circuit Meter Readings

Circuit Type

Meter Reading

Class B/Style B Initiating Device (Zone) Circuit

From zone + to zone – (each zone)

3.3 K Ohms

From zone + to ground

Infinity

From zone - to ground

Infinity

Class A/Style D Initiating Device (Zone) Circuit

From zone + to zone – (each zone)

Infinity

From zone + to ground

Infinity

From zone - to ground

Infinity

From zone + OUT to + IN

Less than 50 Ohms

From zone - OUT to - IN

Less than 50 Ohms

Class B/Style Y Notification Appliance Circuit (each signal circuit)

From + to ground

Infinity

From - to ground

Infinity

Resistance across circuit:
In one direction
In opposite direction


10 K Ohms
Less than 200 Ohms

Class A/Style Z Notification Appliance Circuit (each signal circuit)

From + to ground

Infinity

From - to ground

Infinity

From zone + OUT to + IN

Less than 50 Ohms

From zone - OUT to - IN

Less than 50 Ohms

Resistance across circuit:
In one direction
In opposite direction


Infinity
Less than 200 Ohms

Shielding

Shield to ground

Infinity

Shield to -

Infinity

Shield to +

Infinity

MAPNET/IDNet II Loops (ZAMs and IAMs)

From MAPNET/IDNet II + to ground

Infinity

From MAPNET/IDNet II - to ground

Infinity


Appendix C: Checking System Wiring,

Continued

Meter Readings

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