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Appendix E: Panel Connections and Wiring
52
* Run Interrogator 200 AVM speaker and microphone wires in separate cables to prevent cross talk. Some applications may
require shielded cable for long or electrically noisy microphone wire runs.
Table E.3 Wire Recommendations
Device
Minimum
Gauge
Type
Maximum
Length (feet)
Maximum
Resistance
AC Power Transformer
18
Stranded
25
–
Earth Ground
14
Solid or stranded
25
–
Superbus Devices (Touchpads,
ESM, HIM, etc.)
22
18
Stranded
Stranded
500
1,000
–
Hardwire Zones and Devices
22
Stranded
(See resis-
tance)
50 ohms per zone
(including device resis-
tance)
Sirens, Piezos, and Speakers
18
Stranded
500
–
Interrogator 200 AVM Micro-
phone*
22
Stranded/shielded
500
–
Telephone
22
Phone grade solid or
stranded
–
–
Summary of Contents for ITI UltraGard
Page 62: ...Appendix F UL Requirements 58...