Telephone Line Emulator User’s Manual
40-400-00020, Rev. M 118
Specifications
Telephone Interface
Loop Current 10 to 70 mA in 1-mA increments ±10%
Battery Source 48 VDC ±5 V
Ringing Source 20 - 80 VAC in 5-V increments, sinusoidal waveform
Ring Source Accuracy +0 - 5 V
Ring Trip > off-hook detect time
Ring Cadence up to 3 cycles set in 5-mS increments
on cycle 0 - 3.0 S in 5-mS increments
off cycle 0 - 10 S in 5-mS increments
Ring Frequency 17 - 70 Hz in 1-Hz increments
Impedance 600 Ω + 2.2 µF or 900 Ω + 2.2 µF
Complex Impedances Australia 220 Ω +(820 Ω || 120 nF)
Germany 220 Ω +(820 Ω || 115 nF)
Sweden 270 Ω + (750 Ω || 150 nF)
(Version 3.00+)
United Kingdom 370 Ω + (620 Ω || 310 nF)
Insertion Loss 4.0 ±1.0 dB @ 1000 Hz when both ports are
terminated into the selected impedance
Attenuation 4 to 60 dB in 1-dB increments
Off-hook Detect Time 100 to 3000 mS in 5-mS increments
On-hook Detect Time 100 to 3000 mS in 5-mS increments
On/Off-hook Detect Flash 75 to 1200 mS in 5-mS increments
Line Reversal 50 to 1000 mS in 5-mS increments
Forced Disconnect
length 850 mS default, 0 - 2000 mS in 5-mS increments
delay 1.2 to 30 S in 5-mS increments
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