Appendix 1: Specifications
M-106E Main Board
Power requirements (Use only with Class 2 power source, rated 120 VAC, 60 Hz, 10W input; 12 VAC, 500 mA output.)
Transformer Input
120 VAC
±
10%
Transformer Output
12V, 500 mA nominal
Ringing voltage detection (unit only detects ringing on incoming line)
With “Detect Standard Ringing Only” disabled
40-150 VRMS at 16-66 Hz applied to T-R for > 400 ms
With “Detect Standard Ringing Only” enabled
40-150 VRMS at 16-66 Hz applied to T-R, with cadence of
2000
±2
00 ms on
, 4000 ±
400 ms off (i.e., 6 seconds
required to answer call)
Insertion loss
Without amplifier
< 2 dB for 300-3500 Hz, measured across 900 ohm load in
series with 2.2 micro farad capacitor
With amplifier
< 2.5 dB for 1500-3500 Hz
< 2.5 dB for 350-1500 Hz
Longitudinal balance
> 60 dB for 200-1000 Hz
> 50 dB for 1000-4000 Hz
Loop limitations
Input and output port types
Both loop start
Seizure
≥
20 mA minimum
≤
100 mA maximum
Maximum break duration with no loss of seizure
< 350 ms (input port only)
Minimum break for guaranteed loss of seizure
> 550 ms (input port only)
Input Impedance
DC
210
±
30 ohms (after seizure)
AC
925
±
75 ohms (before password and with outgoing line split)
Output impedance
DC
210
±
30 ohms (after seizure)
AC
925
±
75 ohms
(with the “IN” side open and“ OUT ” side seized)
DTMF Receive Signal Requirements
Tone duration
Must accept > 40 ms
Must reject < 20 ms
Tone level composite signal
Must accept > -25 to +1 dBm
Must reject < -37 dBm
Twist
±
6 dB
Frequency deviation
Must accept
±
1.5% + 2 Hz of nominal
Must reject
±
3.5% + 2 Hz of nominal
DTMF Transmit Signal Requirements
Tone duration (under control of microprocessor)
Make: 70
±
1 ms Break: 70
±
1 ms
Tone level
-6
±
-4 dBm
M-106E Reference Manual
Page 46