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7320 IFL Installation and User’s Guide

Set Up

Foxcom Proprietary Information

16

Document No. 93-005-28-C

3.1.5. Powering the IFL

•

Transmitter power requirement - 15VDC @ 300 mA (excluding LNB Drive
Option)

•

Receiver power requirement - 15VDC @ 230 mA

•

The Standalone Transmitter/Receiver can be powered by a Foxcom-supplied
external DC power supply.

•

The Rackmount Transmitters/Receivers are plugged into the 7000M
rackmount chassis. The chassis can accept and power up to six units.

Note

At temperatures below 10

°

C, the Transmitter’s internal heater will require an

additional 100 mA. The Transmitter’s total power requirement will then be
400 mA.

CAUTION

Ensure that there is a good airflow around the chassis rackmount.

7000M Chassis

The 7000M Chassis provides power to the plug in units. The power supply is
a linear unregulated type. Each plug in unit regulates its own voltage. The
7000M provides:

•

15 -18 VDC (unregulated) @ 2.2 amps power

•

AC input @ 110/220 VAC (user selected)

•

Units can be plugged in “hot standby”

•

An internal 5 amp fuse

7000S (optional) Hot standby power supply

For applications demanding the utmost in reliability and uptime, the 7000S
standby power supply can be optionally plugged in to the standard chassis. The
7000S features hot swapping - supplies may be installed and removed even
during operation. Each power supply is fully redundant and can power a
completely loaded chassis on its own should its "partner" fail. During normal
operation the two units share the load by means of current steering diodes
located on the rear panel.

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Содержание Sat-light 7320R

Страница 1: ...7320 Interfacility Link Installation and User s Guide Copyright 2000 ...

Страница 2: ...1881 Research and Development Beck Science Center 8 Hartom Street Har Hotzvim P O Box 45092 Jerusalem 91450 Israel Tel 972 2 589 9888 Fax 972 2 589 9898 Website www onepathnet com e mail corporate onepathnet com This manual contains PROPRIETARY and CONFIDENTIAL information of OnePath Networks Inc Reproduction release to any third party or any other unauthorized use of any information contained her...

Страница 3: ...duction to the 7320 IFL 9 2 1 Options 9 2 2 Product Drawings 10 2 3 Block Diagrams 11 3 Set Up 12 3 1 Setting Up 12 3 2 Panel Descriptions 17 4 Product Technical Description 18 4 1 7320 IFL Specifications 18 4 2 Alarm Pinouts 19 4 3 Model Dimensions 22 5 Manual Gain Control 23 5 1 Transmitter Gain Control 23 5 2 Receiver Gain Control 23 6 Trouble Shooting 24 7 Appendix I Cleaning Fiberoptic Connec...

Страница 4: ...anels 10 Figure 3 Transmitter Block Diagram 11 Figure 4 Receiver Block Diagram 11 Figure 5 Basic Setup of a System 7320 12 Figure 6 System 7320 Transmitter Pinout 20 Figure 7 System 7320 Receiver Pinout 21 List of Tables Table 1 7320 Transmitter LEDs 17 Table 2 7320 Receiver LEDs 17 Table 3 7320T Transmitter Pinout 20 Table 4 7320R Receiver Pinout 21 Table 5 Receiver RF Signal Voltage 23 Table 6 T...

Страница 5: ...e of defects in material and workmanship for one 1 year from date of shipment from Foxcom During the warranty period Foxcom will repair or replace any product that Foxcom proves to be defective This warranty does not apply to any product which has been subject to alteration abuse improper installation or application accident electrical or environmental over stress negligence in use storage transpo...

Страница 6: ...r from the performance or breach thereof or from the design manufacture sale delivery installation inspection operation or use of any equipment covered by or furnished under this contact shall in no case exceed the purchase price of the device which gives rise to the claim EXCEPT AS EXPRESSLY PROVIDED HEREIN FOXCOM MAKES NO WARRANTY EXPRESSED OR IMPLIED WITH RESPECT TO ANY GOODS PARTS AND SERVICES...

Страница 7: ...NING WARNINGS CONTAINS INFORMATION REGARDING DANGEROUS FUNCTIONS 1 5 Precautions 1 5 1 Personal Safety WARNING OPTICAL RADIATION APPLYING POWER TO THE TRANSMITTER UNIT WILL CREATE A LASER ENERGY SOURCE OPERATING IN CLASS I AS DEFINED BY IEC 825 1 USE EITHER AN INFRARED VIEWER OPTICAL POWER METER OR FLUORESCENT SCREEN FOR OPTICAL OUTPUT VERIFICATION AC POWER HAZARD THE RACKMOUNT POWER SUPPLY LINE I...

Страница 8: ...ver is AC coupled and can withstand the bias from a satellite receiver Do not exceed 25V DC bias 4 Do not allow any dirt or foreign material to get into the optical connector bulkheads This may cause damage to the polished optical connector end faces 5 The optical fiber jumper cable bend radius is 3 cm Smaller radii can cause excessive optical loss and or fiber breakage 6 If multiple transmitters ...

Страница 9: ...d adds virtually no phase noise to the original signal The direct modulation coupled with the 7320 Links RF circuitry guarantees superior signal quality The 7320 gives more than 25 dB carrier to noise performance in a full multichannel environment Gain Control provides for optimization of the RF signal LEDs and back panel monitors and alarms allow for complete system status monitoring and for inte...

Страница 10: ...o 93 005 28 C 2 2 Product Drawings Figure 2 shows the front and rear panels of the System 7320 Transmitter units 7 3 2 0 T Figure 2 System 7320 Transmitter Front and Rear Panels Figure 3 shows the front and rear panels of the System 7320 Receiver units 7 3 2 0 R Figure 3 System 7320 Receiver Front and Rear Panels ...

Страница 11: ...m total power i e at 10 channel loading this is equivalent to 50 to 30 dBm per channel The unit amplifies the signal and feeds it to a laser diode which linearly converts the broadband RF signal to light intensity Power Monitors Preamp Postamp Gain Control Output Photodiode Bias Optical Power Monitor Figure 5 Receiver Block Diagram The 7320R Optical Receiver receives the optical intensity signal a...

Страница 12: ...nsmitter 2 Connecting the fiberoptic cable 3 Setting up the receiver 4 Monitoring the input output signals 5 Power requirements Observe all warnings and cautions mentioned at the beginning of this manual page 7 If after set up you experience problems refer to Trouble Shooting on page 24 Figure 6 Typical Application of a 7320 Link 2 This section gives instructions on installing the transmitter and ...

Страница 13: ... the chassis The Laser LED should be lit 4 Using an optical power meter measure the optical power Insert the meter s cable into the Transmitter s optical connector Power levels should be between 0 3 1 mW Alternatively use a DVM to measure the voltage at pin 6 on the back panel connector The power level should be 4 5 0 3 VDC 5 On the rear panel connect the coax cable to the RF Input Connector 6 On ...

Страница 14: ...able Before connecting the cable 1 The fiberoptic cable must be either fusion spliced or connected via FC APC connectors 2 Wipe the connector with a lint free cotton cloth 3 Note the polarity key of the optical connector before inserting To connect the cable 1 Line Up the Polarity Key FC APC 2 Insert the connector 3 Tighten the connector ...

Страница 15: ...r level should be 1V to each 1 mW measured at the Receiver input 6 On the rear panel connect the fiberoptic cable to the Optical Connector The Opt LED should be lit 7 On the rear panel connect the coax cable to the RF Output Connector Note If either LED is not lit refer to Trouble Shooting on page 24 3 1 4 Measuring the RF Signal Strength The Receiver s RF signal strength can be monitored during o...

Страница 16: ... good airflow around the chassis rackmount 7000M Chassis The 7000M Chassis provides power to the plug in units The power supply is a linear unregulated type Each plug in unit regulates its own voltage The 7000M provides 15 18 VDC unregulated 2 2 amps power AC input 110 220 VAC user selected Units can be plugged in hot standby An internal 5 amp fuse 7000S optional Hot standby power supply For appli...

Страница 17: ... two LEDs The following tables describe the LEDs Table 1 7320 Transmitter LEDs LED Name LED Function Laser Indicates if the optical output power control is functioning RF Indicates if the RF signal is above the minimal level Table 2 7320 Receiver LEDs LED Name LED Function Opt Indicates if the optical reception power is within limits RF Indicates if the RF signal is above the minimal level ...

Страница 18: ... 20 dBm Output Signal Range Total Power 45 to 15 dBm CNR 30 dB in 35 MHz BW single channel Link Gain adjustable 10 dB Gain Control Manual RF Connector F type female BNC optional Optical Characteristics Optical Wavelength 1310 10 nm Optical Power Output 0 2 0 5 mW Optical Link Budget 3 dB 2 km min Optical Connector FC APC or fusion splice Receiver Sensitivity 9 dBm optical min Miscellaneous Chassis...

Страница 19: ... 4 2 Alarm Pinouts The unit s pins are found at the backplane of the 7000M chassis The 7000M backplane incorporates 6 slots each of which has its own 6 pin blank header associated with it Any monitor voltages to be measured may be done between the chassis ground and the required pin The pins are numbered as follows 6 5 4 3 2 1 ...

Страница 20: ...or Range 2 10V 5 6 PDI Measures Laser Optical Power Range 3 0 to 4V 6 1 LSRI Measures Laser Bias Range 4 5 0 2V 7 2 RF Alarm Open collector interface Sinks current when RF level is low 8 3 LSR Alarm Open collector interface Sinks current when optical level is low 9 5 LNB Bias optional External LNB Bias 9 Pin D Type Male Connecter Power Ground 15V Power 1 2 3 4 5 6 7 8 9 7320T Transmitter Laser Cur...

Страница 21: ... 2V 5 6 Optical Power Input Level Monitor 1V mW Optical Power Received 6 1 Spare Not Used 7 2 RF Alarm Open collector interface Sinks current when RF level is low 8 3 Optical Power Alarm Open collector interface Sinks current when optical level is low 9 5 Spare Not Used 9 Pin D Type Male Connecter Power Ground 15V Power 1 2 3 4 5 6 7 8 9 7320R Receiver Not Used RF Signal Strength Monitor Optical P...

Страница 22: ...nical Description Foxcom Proprietary Information 22 Document No 93 005 28 C 4 3 Model Dimensions 0 0 6 3 3 6 9 O p tic a l R F D C P o w e r 4 4 9 RF Test Gain Control Figure 9 Unit Dimensions REAR VIEW FRONT VIEW 0 12 1 52 Figure 10 Chassis Dimensions ...

Страница 23: ...tween 2 to 5VDC To set the Transmitter MGC 1 Adjust the MGC potentiometer while monitoring the RF signal voltage The 7320 IFL is designed to provide optimal output at 2 5V 0 5V Therefore regardless of the input the Manual Gain Control should be set to provide this output 2 If there is input signal level variation expected it is best to leave some headroom should the signal level become too strong ...

Страница 24: ...r receiver to determine if there is optical power emerging from the transmitter use the 5 meter jumper cable If there is no optical power then the transmitter unit is malfunctioning If any or all the above are not within the guidelines the transmitter unit is faulty 2 Lack of RF signal present at Receiver yet optical power is functioning 1 If the unit has an LNB drive option verify that the correc...

Страница 25: ...le Shooting Foxcom Proprietary Information 25 Document No 93 005 28 C PROBLEM POSSIBLE CAUSE 4 Optical power light illuminated with disconnected optical input Damaged leaky photodiode Unit may still function otherwise contact Factory for service ...

Страница 26: ... can be achieved with high performance Specific performance and or design assistance is available by request from Foxcom If there is low no signal or noisy signal at a Foxcom module the connector should be cleaned Dirt on the inside connector tip can impair the flow of light causing problems in signal transmission Foxcom modules are sealed but dirt can occasionally enter 8 Appendix II Installing a...

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