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THURAYA Second-Generation User Terminal

SM-2500 Technical Information Manual

Document No.: AP01-601-08

Asia Pacific Satellite Industries Co., Ltd

9FL, IT Castle 2-Dong, #550-1, Gasan-Dong, GeumCheon-Gu,

Seoul, Korea

APSI Proprietary

All information contained in or disclosed by this document is confidential and proprietary to APSI.

By accepting this material the recipient agrees that this material and the information contained

therein will be held in confidence and will not be reproduced in whole or in part without express

written permission from APSI.

Summary of content (21 pages)

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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 Asia Pacific Satellite Industries Co., Ltd 9FL, IT Castle 2-Dong, #550-1, Gasan-Dong, GeumCheon-Gu, Seoul, Korea Copyright © 2006 Asia Pacific Satellite Industries Co., Ltd All Rights Reserved APSI Proprietary All information contained in or disclosed by this document is confidential and proprietary to APSI.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 CONTENTS 1 INTRODUCTION ...................................................................................................... 3 2 PIN DESCRIPTION .................................................................................................. 5 3 POWER SUPPLY..................................................................................................... 8 4 CONTROL SIGNALS .................
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 1 Introduction 1.1 Scope The purpose of this document is to explain the hardware technical information and specifications of SM-2500, Thuraya satellite module. This document will be helpful to third party designers and manufactuers. For the AT command set of SM-2500, It will be dealt with another document.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 1.4 Overview The Thuraya SM-2500 is a stand alone device which is able to access satellite mobile services via the GMR-1 and GMPRS-1 air interface, without additional components apart from the following: SAT antenna, GPS antenna, keypad, LCD, GSM Module, Bluetooth Module and battery / power supply.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 2 Pin description SAT module has 100-pins B-to-B connector for interface with external device. Each pin, its designated function and interface is shown in Table 3 below. Table 3 Pin functional and electrical description PIN NAME I/O VPWR I 5V_TX I VEXT O LCD_D[0:7] /LCD_CS I/O O /LCD_RD O /LCD_WR O LCD_RS O LCD_EN O /LCD_RESET O LCD_BL_EN O LCD_DIM O DESCRIPTION ELECTRICAL SPEC.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 KBR[00:04] KBC[00:04] I O Row line input pin of keypad matrix. Column line input pin of keypad matrix. VIHmin = 2.1V VILmax = 0.9V IIL = 1 ㎂ VOHmin = 2.4V VOLmax = 0.6V IOL = 4 ㎃ VOHmin = 2.5V VOLmax = 0.8V KEYPAD_BL_EN O Keypad backlight enable output pin.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 GM_OFF I Input pin that to power off the SAT module. VIHmin = 2.1V VILmax = 0.75V IIL = 2 ㎃ VIHmin = 2.1V Input pin to initialize SAT module. When boot up of SAT module, reset signal is VILmax = 0.75V generated by internal circuit to fit the processor reset timing, so it doesn’t need to generate at Id = 20 ㎃ external circuit. This pin has been pull-up 20 ㏀ resistor. Thus, float if unused.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 SIM_RST SIM_CLK O O VRTC I DAI_DIN DAI_DOUT DAI_CLK DAI_SYNC CODEC_SEL I O O O I SIM card reset. SIM card serial clock. 3.0V SIM: VIHmin = 0.7*SIM_VDD VILmax = 0.2*SIM_VDD VOHmin = 0.8*SIM_VDD VOLmin = 0.4V 1.8V SIM: VOHmin = 0.9*SIM_VDD VOLmax = 0.2*SIM_VDD 3.0V SIM: VOHmin = 0.9*SIM_VDD VOLmax = 0.4V Backup power pin to supply power to interior VINmax = +5.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 5V_TX (4.8V~5.3V). 5V_TX means providing power of internal power amplifier. And it is divided because it can be affect to the other circuit such as audio by outbreak of TDMA ripple noise, which is caused by peak current during TX burst.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 Power consumption timing diagrams is in figure 3 at talk time. 5 ms Voice Call(TCH3) MAX 1.5A (5V) 10 ms Data/FAX(TCH6) MAX 1.5A (5V) 15 ms Data/FAX(TCH9) MAX 1.5A (5V) 40 ms Figure 3 5V_TX timing diagrams on each talk mode 3.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 when the difference input voltage and output voltage is big. Ideally if the desired output voltage is 5V and the input voltage is 15V, ideal 10V goes away as heat, so efficiency is only 30%. Therefore linear voltage regulator is necessary to effective cooling element in case of big power dissipations.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 When using a Li-Ion battery the battery must be able to deliver all necessary power peaks to the SAT module. The pack incorporates a protection circuit capable of detecting overvoltage (protection against overcharging), undervoltage (protection against deep discharging) and overcurrent.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 5 RTC backup battery interface RTC (Real Time Clock) power of SAT module is supplied by VRTC pin of board-to-board connector. VRTC is used power souce of internal RTC block and GPS chipset. External backup battery should be connected at VRTC pin because there’s no supply of internal power in VRTC pin. When RTC backup battery is not used, it should be connected with VPWR or VEXT.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 7 USB interface SAT module supports Revision 1.1 of Universal Serial Bus Specification. 8 AUDIO interface 8.1 CODEC selection SAT module offers analog audio interface and digital audio interface. Using or not of digital audio interface is decided by voltage level of CODEC_SEL pin. If CODEC_SEL pin is ‘high’ level, then internal PCM CODEC is disabled and you can use external PCM CODEC.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 SIM_VDD SIM_CLK SIM_RST SIM_DATA SIM card power supply. 1.8V(MAX:±10%)/3V(MAX:±10%) SIM card auto detect, provided by SAT module. SIM card clock, provided by SAT module. SIM card reset, provided by SAT module. SIM card data line, input and output. 10 LCD interface SAT module provides 14-pins interface with a LCD. Specific characteristics are as below. 1. Supports 128*128 dot, 65k color LCD. 2.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 13Mechanical interface The Figure 37 shows the mechanical interfaces of SM-2500 Recommended board to board female connector are also shown in Table 15. It’s the recommended base in Figure 38. Mechanical interface +Update: 02/11/06 Ver: 0.8 Page 16 of 21 This page contains confidential information, which is protected by copyright and is proprietary to APSI.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 Recommended Board to Board Female connector Figure .Recommended Base +Update: 02/11/06 Ver: 0.8 Page 17 of 21 This page contains confidential information, which is protected by copyright and is proprietary to APSI.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 14HEAT DISSIPATION 14.1 Installation method of Heat Sink The proper method of heat dissipation to avoid overheating is necessary when SM-2500 is used in the closed space. Installation of HEAT SINK is recommended between PCB and SM-2500 as shown in the following figure. Figure 5 Installation method of Heat Sink 14.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 Figure .Guide of HEAT SINK and PCB design The housing or case including SM-2500 and Heat Sink should be the material having good thermal conductivity such as Aluminum and keep a good thermal contact between SM-2500 and Heat Sink, and between the Heat Sink and outside housing. 14.3 +Update: 02/11/06 Ver: 0.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 The material like Aluminum which has good thermal conductivity should be used. The following figure is the example and size of heat sink for SM-2500. Figure .Example of HEAT SINK Design +Update: 02/11/06 Ver: 0.8 Page 20 of 21 This page contains confidential information, which is protected by copyright and is proprietary to APSI.
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THURAYA Second-Generation User Terminal SM-2500 Technical Information Manual Document No.: AP01-601-08 15Regulatory Information 15.1 NOTICES TO USER This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 15.2 FCC WARNING This equipment generates or uses radio frequency energy.