Microtel CellStat v.1.22 - Manual (Page 35)

MICROTEL CellStat
TM
33
A.7 Fault Inputs
Type: Isolated Dry Contact, Normal Open or Normal
Closed, Non-Latched.
Sensing frequency: 1 Hz
Sensing current: Closed circuit sees a 10 mA (nominal),
10 millisecond-duration pulse, once every second.
Sensing voltage: Open circuit sees 5 Volts (nominal)
Max. Loop Resistance: 10 killiohms
Max. Loop Capacitance: 100,000 picofarads
Isolation: 1500 Volts, transformer and optical isolation.
Fault Integration Delay: 00 – 99 seconds
AC Power Fail Detect: Internal circuit, configurable enable and alarm delay
Cellular Fault Detection: Alert generated when cellular prepaid balance < $5
A.8 Local Summary Alarm Contacts
Type: Relay, Type 1A Contacts
Operation:
Normally energized (contacts closed),
De-energized (contacts open) when a Fault
condition is present.
Contact Rating: 10 VA, Resistive Load
Max. Switch Current: 0.5 Amp D.C
Max Switch Voltage: 48 Volts D.C.
Max. Carry Current: 1.25 Amps D.C.
Isolation: 1500 Volts