Tfe/V Adapter; Figure 11-10Tfe/V Adapter Interfaces - Siemens Hicom 100 E Service Manual

11.3.3

TFE/V adapter

This adapter links one of the system's a/b interfaces to an entrance telephone and door opener/
doorbell function. This is controlled by the system. Standard active and passive entrance tele-
phones can be connected, see Section 11.3.4.
a/b
X4
VCC
Call detector
(high impedance)
5 mA

Figure 11-10TFE/V adapter interfaces

Caution
!
In the case of the a/b interface, always connect "minus" to the a-wire and "plus" to
the b-wire.
A31003-K16-X001-3-7620, 07/99
Hicom 100 E Version 2.1, Service manual
VCC
Undervoltage detector
(high impedance)
≥
1
VCC
Mute
Voice circuit
amplifier
VCC
DC
AC
VCC
MIC supply
ca. 44s
Plus products
Entrance telephones
DO
Door opener
X3
DO
AC
X3
AC
12 - 16V
Doorbell
transformer
Voice module
MIC+
MIC-
X5
LS1
X5
LS2
KLI
X4 KLI
Doorbell
11-11