After Sales Technical Documentation Loopset LPS-1/2 Original 10/98
PAMS Loopset LPS-1/2 Technical Documentation AMENDMENT RECORD SHEET Amendment Date Number 10/98 Page 2 Inserted By Comments OJuntune Original Original 10/98
PAMS Technical Documentation Loopset LPS-1/2 CONTENTS Page No Loopset LPS-1/2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . List of Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Specifications . . . . . . . . . . . . . . . . . . . . . . .
PAMS Loopset LPS-1/2 Technical Documentation Loopset LPS-1/2 Introduction Hearing impaired people, who use hearing aids (HA), have problems in using cellular phones. They can’t identify speech, partly due to poor S/N–ratio and partly because of interference. Most HA have poor protection for interferences. By using the Loopset the interference problems are minimized. LPS–1 is designed for 5100 and 6100 series phones. LPS–2 is compatible with Communicator N9110 .
PAMS Loopset LPS-1/2 Technical Documentation Basic Specification List of Modules Name of module Type name Material code LPS–1 Product LPS–1 0630146 LPS–1 Module LPS–1 0201179 Assembly parts MLPS1 0261661 LPS–2 Product LPS–2 0630201 Assembly parts MLPS2 0261898 Original 10/98 Note Page 5
PAMS Loopset LPS-1/2 Technical Documentation Recommended batteries: Type Size Min Vout Max Vout Rated capacity Rated Time of Lopset. Speech in 1.0h days (4,2%). Consumption 8mA of the current. Zinc Air Hearing Aid Battery 675 (LR44) 1.15 1,40 550 mAh 68 day (and hour). Mercuric Hearing Aid Battery 675 (LR44) 1.25 1,45 280 mAh 35 day (and hour). Alkaline Battery LR44 1.25 1,45 150 mAh 19 day (and hour).
PAMS Loopset LPS-1/2 Technical Documentation When there is no call going, AUXOUT is in high impedance state and XMIC is pulled up. When loopset is connected, XMIC is pulled down. XMIC is connected to HeadsetInt line (in MAD), so an interrupt is given due to both connection and disconnection. During a call there is bias voltage (1.5 V) in AUXOUT. The state of HeadsetInt can’t be sure.
PAMS Loopset LPS-1/2 Technical Documentation Magnetic Field frequency response window dBr +10 +5 +3 dB +3 dB +3 dB –3 dB –3 dB –3 dB +3 dB +1 dB 0 –5 –5 dB –3 dB –10 –15 –20 300 Hz 3 kHz 250 500 1k 2k 4k Figure 1. Magnetic field frequency response window of Loopset. Functional Blocks Table 1.
PAMS Loopset LPS-1/2 Technical Documentation Microphone response window dBr +10 +5 +3 dB +3 dB +3 dB –3 dB –3 dB –3 dB +3 dB +1 dB 0 –5 –5 dB –3 dB –10 –15 –20 300 Hz 250 3 kHz 500 1k 2k 4k Figure 2. Mic response window of Loopset.
PAMS Loopset LPS-1/2 Technical Documentation External Signals and Connections AGC Control Vout + + XEAR Vout + L_GND Battery Phone VOX XMIC SGND Figure 3.
PAMS Loopset LPS-1/2 Technical Documentation Table 2. X100 connector signals Pi n Pi n in x 10 0 Name 1 1 XMIC Function Min Typ Ma x 1.6 Headset microphone in input (from accessory to phone) 100 Unit Description kW Headset source AC impedance 400 mA Bias current 200 mV- Maximum signal level p–p Headset detection (from accessory h ) phone) to 1.4 7 2.9 V No headset (ref. SGND). 0 1.3 3 V Headset connected (ref. SGND). 2 2 SGND Audio signal ground.
PAMS Loopset LPS-1/2 Technical Documentation Exploded View of LPS-1/2 Assembly parts of LPS-1/2 ITEM 1 2 alt 3 4 5 6 Q’TY 2 Page 12 CODE DESCRIPTION VALUE, TYPE 0201179 9780224 9780241 9451016 9451015 6290021 9451246 Module Loop set Cable LPS–1 Loop set Cable LPS–2 B–cover A–cover PT-screw Battery lid lps-1 DMD02438 DMD04474 DMD02639 DMD02638 1,8x8 feznTX6 DMD03654 Original 10/98
PAMS Loopset LPS-1/2 Technical Documentation Parts List of LPS–1 (Version 6.1) ITEM CODE R001 1430784 R003 1430796 R004 1430778 R005 1430804 R006 1430792 R018 1430778 R020 1430796 R021 1430804 R024 1430792 R025 1430796 R026 1430122 R027 1430790 R028 1430804 R031 1430778 R032 1430804 R033 1430780 R034 1430784 R035 1430788 R036 1430778 R037 1430778 R039 1430804 R041 1430804 R042 1430812 R043 1430804 R044 1430778 R046 1430762 R047 1430804 R048 1430812 C002 2610003 3.2x1.6x1.6 C005 2610003 3.2x1.6x1.
PAMS Loopset LPS-1/2 C025 C026 C027 C029 C030 C031 C033 C034 C035 C038 C039 C040 C041 C053 C221 C261 C262 B001 Z001 Z002 T001 V400 V401 V405 V406 N003 N402 X100 X200 Page 14 2320546 2320779 2320779 2320107 2320107 2320779 2320546 2320779 2320592 2320564 2320469 2320469 2320779 2320584 2320779 2320546 2320546 5140117 3640035 3640035 3640073 4219922 4219922 4219904 4219908 4340379 4340331 5409067 5400125 6400039 9854251 Technical Documentation Ceramic cap. 27 p Ceramic cap. 100 n Ceramic cap.
