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HFU–2
HFS–12 Audio Specifications, acoustic
Electroacoustic transfer func-
tion (RX) dBPa/1V/0.5m
Speaker distortion level at
XEAR–SGND, d=5%
HF–speaker: SPL, approxi-
mate over 500 ... 3000 Hz
Equivalent input noise,
XEAR
Total noise, HF speaker
HFM–8 Audio Specifications, acoustic
Electroacoustic transfer func-
tion (TX) dBV/dBPa/0.5m
Total noise, XMIC–SGND
Audio signal levels
Signal name / conn. / pin
XEAR / X100 / 4
SGND / X100 / 3
XMIC / X100 / 2
HFMIC / X400 / 2
SPEAKER / X500 / 1 & 2
Signals and Connections
Connector Name
System connector
Handset / Data connector
Car connector
HFMIC connector
EXT. SPEAKER connector
Page 6
Minimum
Typical /
Nominal
11
15
354
87
89
–4
–2
200
Minimum
Typical /
Nominal
–28
–24
140
Minimum
Typical /
Nominal
80
0
60
2.0
0.75
Code
Notes
X100
Charge, Mbus, Fbus, audio
lines, VB
X200
Mbus, Fbus, Handset au-
dio– lines, Hshook, 10V
X300
+VB, –VB, ign. sense, car
radio mute, antenna motor
control
X400
External microphone
X500
External speaker
Technical Documentation
Maximum
Unit / Notes
19
dBPa / 1V at system
connector is theoreti-
cal level
mVrms
91
dB / 1W / 1m
0
dBPa / 0.5W at 0,5m
10
uVrms psofometric
400
uVrms psofometric
Maximum
Unit / Notes
–20
dBV/–5dBPa/0.5m
300
uVrms psofometric
Maximum
Unit / Notes
354
mVrms
mVrms
990
mVrms
mVrms
5
V rms
Specifications / Ratings
Modular 15 pin.
Modular 10 pin.
2 X 3 Power conn.
2.5 mm jack
3.2 mm jack
Original 11/97
PAMS
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