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NMX920 OEM Integrators Guide

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12. References

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Mobitex Interface Specification (MIS), Revision R4A, October 1998.

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Mobitex Interface specification (MIS) R4A, Chapter 6, Revision G October 1998

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Technical Specification, WSM Modem Requirements, Rev A BellSouth Wireless
Data USA July 1998 (Doc. No. 98TR0021)

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Radio Modem Test Specification, Version 5.1 BellSouth Wireless Data USA
December 1998 (Doc. No. BSWD-031-RMC-TS)

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Federal Communications Commission (FCC) 47cfr, parts 2, 15, 90

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Industry Canada (IC) RSS-119 Issue 5, August 1996

Certification Report on Specific Absorption Rate (SAR) Experimental Analysis
Nomadic Communications NMX 920 OEM Radio – Modem Date: 30 November,
1999. Aprel Laboratories

Содержание NMX920

Страница 1: ...NOMADIC COMMUNICATIONS NMX920 OEM Integrators Guide Version 1 02 December 1999...

Страница 2: ...t notice except to the appropriate spectrum management authorities The information in this specification is deemed reliable at the time of printing Nomadic Communications does not assume responsibilit...

Страница 3: ...5 Board to Board Connection 9 6 Modes Of Operation 10 6 1 Application of power 11 6 2 Network Contact 11 6 3 Mode Change 11 6 4 Shutdown 12 6 5 Removal of power 12 7 Notes for Integrators 13 7 1 Anten...

Страница 4: ...perates in the 900 MHz SMR Specialised Mobile Radio Band in North America The NMX920 is designed to comply with established system and RF standards The standard documents listed here are for reference...

Страница 5: ...applied to the NMX920 power pins it will enter POWER OFF MODE see section 6 below waiting to sense a power on request via the correct assertion of DTR pins see section 6 below q When operated for the...

Страница 6: ...20 will perform a controlled shutdown MMCX RF Connector Locating pin x 3 NMX920 102 mm System Interface 30 Way 2 x 15 55 mm 12 mm High 1 29 30 2 5 2 System Interface The System Interface port on the N...

Страница 7: ...icator active low 5V TTL output 19 NET_LED Output Network contact indicator active low 5V TTL output 20 PWR_LED Output Power on indicator active low 5V TTL output 21 NC No Connect 22 NC No Connect 23...

Страница 8: ...ifier has finished its startup sequence Additionally the power supply must be able to provide this current without voltage sag for a maximum length transmission about 980 msec The OEM power supply sho...

Страница 9: ...ion is available at time of ordering The dimensions of the required layout on the host unit are shown below Additionally electronic versions of this layout in CADINT format ise available from Nomadic...

Страница 10: ...ther information see section Power Sequencing If power is removed from the External Interface without correctly shutting down the NMX920 the MOBITEX network will become unaware of the modem s Active I...

Страница 11: ...pt that the Radio Module runs on about 10 duty cycle to reduce the average power consumption 6 1 Application of power Electrical power must be applied to the NMX920 via the PWR pins of the External In...

Страница 12: ...nternal distribution of power from the PWR pins using digitally controllable switches and regulators While there is no mechanism for completely disconnecting power from the NMX920 without externally r...

Страница 13: ...istics are common to both ground independent and ground referenced antennas from a number of manufacturers Frequency 890 960 MHz Gain Unity 0 dBd Mounting Straight Connection TNC Power 5 Watts Impedan...

Страница 14: ...y gain 0 dBd antenna and a guaranteed minimum separation of at least 20 cm between the antenna and any body then the NMX920 can be used in the system without further evaluation If a higher gain antenn...

Страница 15: ...nging between them and the MASC traffic generated PWR High Normal Mode PWR 7 5 V PWR 7 5 V Periodic MASC F KF7 MASC F KF1 PWR Low PWR 6 5 V Periodic MASC F KFB PWR 6 5 V PWR 5 5 V MASC F O Shut Down 7...

Страница 16: ...Issue alert MPAK Full Full X User command Not used Not used Y User command Not used Not used Z User command Not used Not used F A Power save mode functions Full Full F B Change to Mobitex operation mo...

Страница 17: ...QA02 Roaming parameters information Full Full QA03 Lock on channel pair Full Full PA01 Radio protocol parameters No Full PA02 Modem identity parameters No Full PA03 Default channel list parameters No...

Страница 18: ...g Humidity 5 to 95 non condensing relative humidity at 50 C for at least 8 hours Physical Specification Overall dimensions 100 mm x 55mm x 12 mm standard enclosure including connectors and mounting lu...

Страница 19: ...ntrol and regulation for the modem q Modem plugs directly onto NMD920 q Connection to PC via 9 pin D connector q TNC connector for mounting antenna or coaxial cable to external antenna or test instrum...

Страница 20: ...k Latest Home Network 01 United Wireless 400 02 STMD 400 03 BellSouth 900 04 Cantel 900 Default Mode E Express B Battery Antenna Connector Configuration B Bottom S Top Straight R Top Right Angle Syste...

Страница 21: ...s Rev A BellSouth Wireless Data USA July 1998 Doc No 98TR0021 Radio Modem Test Specification Version 5 1 BellSouth Wireless Data USA December 1998 Doc No BSWD 031 RMC TS Federal Communications Commiss...

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