SMSC MOST50 Скачать руководство пользователя страница 8

E-O Converter User’s Manual

Copyright © 2009 SMSC.

DB0820UM1A

Page 8

MOST50 E-O Converter

3 System Example

Instructions on setting up a sample test system are provided in this section. The test system, shown in
Figure 3-1, utilizes two MOST50 E-O Converters to electrically isolate an OS81082 Evaluation Board,
which is the DUT in this sample system. The test environment in this example is represented by the
anechoic chamber. The OptoLyzer G2 3050e serves as the MOST50 network master and is used to moni-
tor and inject network traffic through either OptoLyzer transceiver or MOST RapidControl.

Devices used in the test system example (Figure 3-1) are connected using the following steps. Cable con-
nections between devices are shown in Figure 3-2.

1. Connect the OS81082 Evaluation Board (DUT) to the E-O Converter (#2) with two UTP ePHY cables. 

2. Connect the duplex optical fiber cable to each of the E-O Converters, ensuring that the SC connectors 

are inserted correctly.

3. Connect the OptoLyzer G2 3050e (Master) to the E-O Converter (#1) using two more UTP ePHY 

cables.

4. Turn on all of the devices. The ePHY and optical error LEDs on the E-O Converters will turn off once 

the network is locked.

5. The system is now ready for testing.

In this example, the Optolyzer G2 3050e is able to exercise the DUT without adding any noise interfer-
ence. The test can also include any number of MOST50 network devices within the anechoic chamber.

Figure 3-1: MOST50 Test System Example

Optical Physical 

Layer Network

OS81082

Evaluation 

Board
(DUT)

MOST50

E-O 

Converter

(#2)

Anechoic Chamber

MOST50 

ePHY 

Network

Optolyzer

G2

3050e

(Master)

MOST50

E-O

Converter

(#1)

MOST50 

ePHY 

Network

UTP cable

UTP cable

(1.0 m)

UTP cable

Duplex optical 

fiber cable

(40 m)

(1.0 m)

(1.0 m)

UTP cable

(1.0 m)

Содержание MOST50

Страница 1: ...E O Converter User s Manual Copyright 2009 SMSC DB0820UM1A Jan 2009 Page 1 MOST50 E O Converter User s Manual...

Страница 2: ...rights of SMSC or others There are a number of patents and patents pending on the MOST technology and other technologies No rights under these patents are conveyed without any specific agreement betw...

Страница 3: ...exadecimal number value zzz zzh Hexadecimal number value zz rsvd Reserved memory location Must write 0 read value indeterminate code Instruction code or API function or parameter Multi Word Name Used...

Страница 4: ...ETAILS 10 4 1 Battery Operation 11 4 2 Physical Layer Conversion 12 4 3 Status LEDs 13 4 3 1 Power 13 4 3 2 Charge 13 4 3 3 Optical Error 13 4 3 4 ePHY Error 13 5 TEST CONFIGURATIONS 14 5 1 Radiated E...

Страница 5: ...teed and user safety may be at risk This user s manual should be read in its entirety prior to operating the MOST50 E O Converter with spe cial consideration given to Initial Charge Instructions Appen...

Страница 6: ...ly isolating the DUT ePHY network from the other MOST50 devices The MOST50 E O Converter assists in isolating the DUT during a functional network test by converting a MOST50 ePHY network into an optic...

Страница 7: ...powering the device Low battery indicator Remote monitoring of ePHY errors through a Versatile Link optical transmitter The MOST50 E O Converter has been tested under the following conditions CISPR 2...

Страница 8: ...tion Board DUT to the E O Converter 2 with two UTP ePHY cables 2 Connect the duplex optical fiber cable to each of the E O Converters ensuring that the SC connectors are inserted correctly 3 Connect t...

Страница 9: ...onverter P o w e r C h a r g e O p t ic a l E r r o r e P H Y E r r o r ePHY Error Optical Power 9 16 V Reset ON OFF INIC Debug Port MOST50 ePhy OS81082 Evaluation Board OptoLyzer OL3050e Power R M L...

Страница 10: ...rnatively the E O Converter power can be supplied by an internal battery Power from the battery or external power supply can be completely dis connected from the functional circuitry by the power swit...

Страница 11: ...l occur to condition the battery for a fast charge cycle This pre charge condition is also sig nified by the Charge LED flashing Once the battery reaches a minimum voltage the charger will commence wi...

Страница 12: ...cal physical layer transceiver with a SC duplex receptacle This allows the signal to be transmitted over multi mode 62 5 125 m glass optical fiber cable for distances up to 50 m The MOST50 E O Convert...

Страница 13: ...y cannot enter fast charge mode because the temperature is too high or the battery is severely discharged In this mode the battery is being trickle charged 4 3 3 Optical Error The Optical Error LED is...

Страница 14: ...erters are used in the configuration One is connected electrically to the DUT inside of the anechoic chamber the other is connected to the stimulus equipment outside of the anechoic chamber A glass op...

Страница 15: ...verter 2 ePHY Cable 3 MOST50 E O Converter 10 12 V Battery 4 Glass Optical Fiber SC Duplex 11 Feedthru 5 Ground Plane 12 Antenna 6 Insulating Support 13 LISN 7 DUT Power Cable 14 Test Receiver 8 Coppe...

Страница 16: ...ting support This ensures that RF energy is dissipated by the DUT and not the E O Converter For automated BCI testing the E O Converter s ePHY Error Versatile Link transmitter output is connected by a...

Страница 17: ...nt Injection Probe 4 Glass Optical Fiber SC Duplex 13 Current Monitoring Probe 5 Ground Plane 14 LISN 6 Insulating Support 15 ePHY Error Monitoring Receiver 7 DUT Power Cable 16 RF Source 8 Plastic Op...

Страница 18: ...produced during testing The E O Converter inside of the TEM cell is grounded to the metal floor using copper tape For automated TEM Cell testing the E O Converter s ePHY Error Versatile Link transmit...

Страница 19: ...Glass Optical Fiber SC Duplex 11 Feedthru 5 Field Probe 12 Plastic Optical Fiber 6 Insulating Support 13 ePHY Error Monitoring Receiver 7 DUT Power Cable 14 RF Source 8 Copper Tape to TEM Cell Floor...

Страница 20: ...E O Converter User s Manual Copyright 2009 SMSC DB0820UM1A Page 20 MOST50 E O Converter Figure 5 4 Typical E O Converter TEM Cell Setup...

Страница 21: ...is isolated from the ground plane using an insulating support Grounding only the DUT with copper tape ensures that the ESD events induced on the ePHY network are dissipated solely through the DUT 3 1...

Страница 22: ...e Fuse 60 C Optical Transceiver Duplex SC Receptacle Output Optical Power 14 dBm avg 62 5 125 m fiber Data Rate 50 Mb s Wavelength 1300 nm Transmission Length 50 m ePHY Error Versatile Link Transmitte...

Страница 23: ...gin a fast charge cycle when a minimum voltage is reached The battery has recently been charged and is outside of the temperature range to enter another fast charge cycle The unit is ready to be used...

Страница 24: ...the power switch 2 Connect the 12 V power supply to the power jack The Charge LED blue will turn on indicating a fast charge cycle is in progress 3 Wait until the Charge LED turns off The initial char...

Страница 25: ...MOST50 E O Converter E O Converter User s Manual Copyright 2009 SMSC DB0820UM1A Page 25 NOTES...

Страница 26: ...MOST50 E O Converter...

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