Siemens TC35 Terminal Guida Utente Scaricare il pdf (Pagina 18)

16

Interface description

Handset connector

Purpose of the connectors/connections

2

1

3

4

1 MICN

2 EPN

3 EPP

4 MICP

Signal

name

PIN I/O Description Parameters

MICN 1 DC:O

AC:I

Microphone input

minus

DC (no load):

U

0

=6.0V±10%

(MICP)

U

0

=0V (MICN)

R

i

=4.7k (MICP)

R

i

=4.7k (MICN)

AC: U

imax

=1.03V

PP

Z

i

=2kΩ

Gain range:0...42dB

MICP 4 DC:O

AC:I

Microphone input

plus

EPN 2 O Earpiece

connector

U

0max

=3.7V

PP

, no load

R

i

=15Ω

Gain range:–18...0dB

EPP 3 O Earpiece

connector

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 38 39

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