2 radio base connector (printed circuit) – SIGMA BENEFON TDP-52-SN3 User Manual
Page 64
27.1.1999
4H0700GB.__2
30
Product: TDP-52-SN3 (Sigma Gold) / OH0700
5.2.2.2 Radio Base Connector (printed circuit)
The Ext-hook switch is connected to the erp-line so that the erp-line dc level drops
when the handset is in its holder.
31
BMEM
input memory data-line from the bat-
tery
0/5V
32
nc
33
nc
34
MICINPUT
microphone-line
35
nc
36
ISIGN
battery voltage course indicator
0/5V
37
KEYLEDVB
voltage for the led of keyboard
6V
38
IVBDET
battery current indicator
0-5V
39
V-PROG
battery charging voltage
40
V-PROG
1
SV-CHG
battery charging voltage IN
2A
2
SV-CHG
battery charging voltage IN
2A
3
VB
6 V output to accessories
0.5A
4
V-PROG
FLASH PROM programming
voltage IN
0.5/12 VDC
5
SEXT-
MIC+PWR
external audio from the
microphone
400 mVrms
6
GND
7
GND
8
EXTERPX+
HOOK
external audio to the speaker
amplifier
220 mVrms
9
SCADET
carbox identification
0/5V
10
SI2CINT
i2c interrupt, radio input
0/5V
11
SSCL
i2c clock
0/5V
12
SSDA
i2c data
0/5V
13
STXD
rs232 OUT
0/5V
14
SRXD
rs232 IN
0/5V
15 SEXTIO
reserve
0/5V
16
SCHGCONT
charging control voltage
0...5VDG
analog