MH88422
AC Electrical Characteristics
†
- MH88422-1
Characteristics
1
2
2-Wire input Impedance
(200Ω + 820Ω //115nF)
Return Loss at 2-Wire
(200Ω + 820Ω //115nF)
Longitudinal to Metallic Balance
Sym
Zin
RL
20
20
20
40
55
53
Nc
at 2-Wire
At VX
5
6
Transmit Gain (2-Wire to VX)
Frequency Response Gain
(relative to gain @ 1kHz)
-72
-72
-0.4
-0.6
-0.6
-58
Min
Typ
‡
900
22
24
26
65
60
60
Max
Preliminary Information
Units
Ω
dB
dB
dB
dB
dB
dB
dBmp
dBmp
dB
dB
dB
Test Conditions
@ 1kHz
300-500Hz
500-2500Hz
2500-3400Hz
50-300Hz
300-1000Hz
1000-4000Hz
3
4
Idle Channel Noise
Input 0.5V @ 1kHz
Off -Hook
300Hz
3400Hz
† Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.
‡ Typical figures are at 25°C and are for design aid only.
AC Electrical Characteristics
†
- MH88422-2
Characteristics
1
2
3
2-Wire Input Impedance
(600Ω)
Return Loss at 2-Wire
(Reference 600Ω)
Longitudinal to Metallic Balance
Metallic to Longitudinal Balance
Sym
ZIn
ERL
SFRL
20
14
58
53
60
40
Nc
at 2-Wire
at VX
5
6
Transmit Gain (2-Wire to Vx)
Frequency Response Gain
(relative to gain @ 1kHz)
13
13
-0.4
-0.6
-0.6
20
dBrnC
dBrnC
dB
dB
dB
Input 0.5V @ 1kHz
Off- Hook
200Hz
3400Hz
Min
Typ
‡
600
20
18
60
55
Max
Units
Ω
dB
dB
dB
dB
dB
Test Conditions
@ 1kHz
500-2500Hz
200-3200Hz
200-1000Hz
1k-3kHz
200-1000Hz
1k-4kHz
4
Idle Channel Noise
† Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.
‡ Typical figures are at 25°C and are for design aid only.
2-26
MITEL [ MITEL NETWORKS CORPORATION ]
