Ons Dc Supervision Parameters; Ons Ringing Parameters; Ons Message Waiting Parameters - Mitel 3300 ICP Hardware Technical Reference Manual

C 3
HAPTER

ONS DC Supervision Parameters

DC Supervision Parameters
Table 3.13:
DC Supervision
Battery Feed
Loop Resistance
Loop-Detect Threshold
Flash Detect
Ground button detect threshold
Positive Disconnect

ONS Ringing Parameters

Ringing Parameters
Table 3.14:
Ringing
Voltage
Frequency
Trip Battery: Silent interval
Ring Interval
Number of bridged ringers
Max. bridged capacitance
Ring Trip detect time
SW ring trip response time
1. The LA ASU is used in Latin America (excepting Brazil).
2. The UK ASU is used in the United Kingdom and New Zealand.
3. The EU ASU is used in Australia, France, German, Italy, Netherlands, Portugal, and Spain.

ONS Message Waiting Parameters

Message Waiting Parameters (Sheet 1 of 2)
Table 3.15:
Message Waiting
Voltage
Parameters
-30 Vdc feed, constant current set at 25 mA ± 1
mA
600 ohms (includes set)
12 mA
SW timed function from switch hook detector
13 mA Tip or Ring to ground in off hook state
SW timed function that breaks loop current
Parameters
65 Vrms sine wave superimposed onto –48 Vdc
1
20 Hz (NA/LA )
2 3
25 Hz (UK /EU )
-30 Vdc
-50 Vdc
3
3nF||15k ohms
HW detector response <100 ms
HW ring trip overrides application of ringing signal
Within 50 ms of switch hook detect
Parameters
-115 Vdc ± 5V dc
P A
IN LLOCATIONS
S U G
ERVICES NITS AND ATEWAYS
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