MH88631-2 Просмотр технического описания (PDF) - Mitel Networks

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MH88631-2

Central Office Interface (LS/GS)

Mitel Networks 

Preliminary Information

MH88631

AC Electrical Characteristics

Characteristics

Sym Min Typ* Max Units

Test Conditions

1 Ringing Voltage

2 Ringing Frequency

VR

40

90

130

Vrms

-1 version

20

Hz Voltage range 40

-120Vrms

-2 version

50

Hz Voltage range 35

-120Vrms

3 Operating Loop Current

IL

18

70

mA

4 Off-Hook DC Resistance

RT

300

Ω

@18mA

5 Operating Loop Resistance

RL

2300

Ω

@18mA

6 On-Hook Leakage Current

3

µΑ RINGND = 5.0Vdc

7 Ring Ground Sink Current

IRG

100 mΑ -48VDC with 200Ω in

series on Ring lead

8 Tip and Ring AC Impedance

600

Ω with 1.0kΩ + 1.0µF in

parallel with Tip and

Ring

9 Longitudinal Balance

metallic to longitudinal

60

40

longitudinal to metallic

58

53

dB 200-1000Hz

dB 1000-4000Hz

dB 200-1020Hz

dB 1020-3020Hz

10 Return Loss Trunk to Line

20

dB 200-500Hz

26

dB 500-1000Hz

30

dB 1000-340Hz

11 Transhybrid Loss (single frequency)

THL

18.5

into 600Ω

34

30

dB 200Hz

dB 1000Hz

dB 3000Hz

12 Transhybrid Loss (single frequency)

into AT&T Compromise

13 Frequency response (Output relative

to 1kHz, VTR/VR and VX/VTR)

THL

18

20

-0.15

0.05

-0.10

0.05

-0.10

0.05

-0.15

0.05

dB 200-1000Hz

dB 1000-4000Hz

dB 200Hz

dB 300Hz

dB 3000Hz

dB 3400Hz

See Note 1

14 Idle channel noise

15 Power Supply rejection ratio

8

dBrnco C-Message

PSR

40

dB

R

16 Analog signal overload level

(adjustable gain)

* Typical figure are at 25°C with nominal ±5V supplies and are for design aid only

Note 1: Input 0dBm at VTR, or input 0.0775Vrms at VR. TR=600Ω Termination.

6

dBm 1kHz,0dBm

= 0.775Vrms into 600Ω

DC Electrical Characteristics

Characteristics

Sym Min Typ* Max Units Test Conditions

1 Output High Voltage

(TG, RC, RV, FC, RG)

2 Output High Current

(TG, RC, RV, FC, RG)

3 Output Low Voltage

(TG, RC, RV, FC, RG)

4 Output Low Sink Current

(TG, RC, RV, FC, RG)

* Typical figure are at 25°C with nominal ±5V supplies and are for design aid only

4.75

0.17

-0.30

-0.40

V

No Load on output

mA VOH=-2.7Vdc

V

No Load on output

mA VOL=-0.4Vdc

2-231

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