Phonetics 2000 APPENDIX B Engineering Specifications

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Appendix B:Engineering Specfifications
APPENDIX B
Engineering Specifications
Electrical
Power Requirements:
120VAC 60Hz 10W (UL listed power supply)
Power Surge Protection:
17V Metal Oxide Varistor and solid state transient protection
Battery System:
(6) C-cell Rechargeable Nicad batteries (not included)
Battery Charging:
Precision voltage controlled charging system
Battery Backup time:
10 - 15 hrs
Inputs
Input Channels:
8 universal, AC Power and battery
Input Types:
Normally Open/Normally Closed contact, 2.8K/10K thermistor, 4-20mA
current loop, 0-5V analog voltage
Input Conditioning:
Open Contacts see 5VDC, closed contacts see 0.5mA, Thermistors, see
5VDC through 10K Ohms, 4-20mA inputs, see 220 Ohms to
ground, 0-5V analog inputs see 5M Ohms
Input Fault Protection:
35V over/under voltage protection
Input Resolution:
10 bits