PBL 386 11/2

3

Figure 2. Overload level, V

port

1 << R

ωC

R

Electrical Characteristics

0

°C ≤ T

Z

R

unless otherwise specified. Current definition: current is positive if flowing into a pin. Active state includes active normal and active

reverse states unless otherwise specified.

Ref

Parameter

fig

Conditions

Min

Typ

Max

Unit

Two-wire port

Overload level, V

TRO

2

Active state

Off-Hook, I

1% THD, Note 1

2.5

V

Peak

On-Hook, I

1.4

V

Peak

Metering I

Z

2.3

V

Peak

Input impedance, Z

TR

Note 2

Z

Longitudinal impedance, Z

0 < f < 100 Hz

20

35

Ω/wire

Longitudinal current limit, I

active state

12

mA

Longitudinal to metallic balance, B

LM

IEEE standard 455-1985, ZTRX = 736

Ω

0.2 kHz < f < 1.0 kHz

53

70

dB

1.0 kHz < f < 3.4 kHz

53

70

dB

Longitudinal to metallic balance, B

LME

3

active state

E

Lo

B

0.2 kHz

≤ f ≤ 1.0 kHz

53

70

dB

V

TR

1.0 kHz < f < 3.4 kHz

53

70

dB

Longitudinal to four-wire balance, B

LFE

3

active state

E

Lo

B

0.2 kHz

≤ f ≤ 1.0 kHz

59

70

dB

V

TX

1.0 kHz < f < 3.4 kHz

59

70

dB

Metallic to longitudinal balance, B

MLE

4

active state

V

TR

B

;E

0.2 kHz < f < 3.4 kHz

40

58

dB

V

Lo

Figure 3. Longitudinal to metallic (B

and Longitudinal to four-wire (B

balance

1

<< 150

Ω, R

ωC

R

PBL 386 11/2

TIPX

RINGX

RSN

VTX

C

PBL 386 11/2

TIPX

RINGX

RSN

VTX

C