Nokia 8550 Service Manual
NSM–3/3D
Non Serviceable Accessories
Non Serviceable Accessories
PAMS Technical Documentation
Page 12
Issue 3 11/2000
Nokia Mobile Phones Ltd.
Loopset LPS–3
Loopset LPS–3 has been developed for hearing aid users to allow them
to use mobile phones. It is based on induction technology.
All hearing aids have support for induction loop, ie. they have a little tele-
coil inside. This coil can capture the signal supplied to the loop. Standard
hearing aids have two operation modes; M–mode for normal microphone
use and T–mode for telecoil use.
to use mobile phones. It is based on induction technology.
All hearing aids have support for induction loop, ie. they have a little tele-
coil inside. This coil can capture the signal supplied to the loop. Standard
hearing aids have two operation modes; M–mode for normal microphone
use and T–mode for telecoil use.
Product Code
Loopset LPS–3:
0630244
Recommended Batteries
Type
Size / IEC–
type
Rated ca-
pacity
Talk time
(3mA
load)
Standby
(20uA load)
Zinc Air Hearing Aid Battery
675 / PR44
540 mAh
180 hour.
840 hour or
35 day (1)
35 day (1)
Silver Oxide Hearing Aid Battery
675 / SR44
150 mAh
50 hour.
7 500 hour or
310 day.
310 day.
Alkaline Battery
675 / LR44
110 mAh
36 hour.
5 500 hour or
230 day.
230 day.
Note (1): The capacity of the zinc air battery will fall 20% in a month. After
the activation the zinc air battery begins to self–discharge. The battery will
be empty within 5 weeks.
the activation the zinc air battery begins to self–discharge. The battery will
be empty within 5 weeks.