Evertz 7700 MultiFrame Manuel utilisateur

7700/7800 MultiFrame Manual

7807LT-2 Dual Wideband RF Fiber Transmitter

Revision 1.2

TABLE OF CONTENTS

1. OVERVIEW .......................................................................................................................................1

2. INSTALLATION.................................................................................................................................3

2.1. 7807LT-2 CONNECTIONS .......................................................................................................4

2.2. CARE AND HANDLING OF OPTICAL FIBER..........................................................................5

2.2.1. Safety............................................................................................................................5

2.2.1.1. 7807LT-2 1310nm FP and CWDM Versions....................................................5

2.2.2. Assembly.......................................................................................................................5

2.2.3. Labeling.........................................................................................................................5

2.2.4. Handling and Connecting Fibers....................................................................................6

3. SPECIFICATIONS.............................................................................................................................7

3.1. RF INPUT..................................................................................................................................7

3.2. RF MONITOR OUTPUT............................................................................................................7

3.3. OPTICAL OUTPUT...................................................................................................................7

3.4. GENERAL PURPOSE OUTPUTS.............................................................................................7

3.5. ELECTRICAL............................................................................................................................7

3.6. PHYSICAL (NUMBER OF SLOTS)...........................................................................................8

3.7. COMPLIANCE..........................................................................................................................8

3.8. RF SYSTEM PERFORMANCE 7807LT-2+7807LR-2 PAIR......................................................8

4. STATUS INDICATORS......................................................................................................................9

5. JUMER POSITIONS........................................................................................................................12

5.1. 7807LT-2 JUMPERS AND LEDS............................................................................................12

5.2. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED BY THE GLOBAL

FRAME STATUS ....................................................................................................................12

5.3. CONFIGURING THE MODULE FOR FIRMWARE UPGRADES.............................................13

5.4. FACTORY AND BDM JUMPERS ...........................................................................................13

5.5. GPO JUMPERS......................................................................................................................13

7700/7800 MultiFrame Manual

7807LT-2 Dual Wideband RF Fiber Transmitter

Revision 1.2

6. DOT-MATRIX DISPLAY..................................................................................................................14

6.1. 7807LT-2 CONTROLLED PARAMETERS..............................................................................18

6.1.1. Adjusting the RF Input Power Alarm............................................................................18

6.1.2. Selecting the Input Gain Mode.....................................................................................18

6.1.3. Enabling/Disabling Squelch Mode ...............................................................................19

6.1.4. Adjusting the Squelch Mode Threshold .......................................................................19

6.1.5. Adjusting the RF Gain .................................................................................................19

6.1.6. Adjusting the AGC Target Level ..................................................................................20

6.1.7. Setting the Passcode (DWDM versions only) ..............................................................20

6.1.8. Setting the LNB Voltage Level.....................................................................................20

6.1.9. Configuring the 22KHz Tone .......................................................................................21

6.1.10. Setting the LNB Current Threshold Level ....................................................................21

6.1.11. Default Card-Edge Display ..........................................................................................21

6.1.12. Setting the Display Orientation ....................................................................................22

6.1.13. Displaying the RF Threshold........................................................................................22

6.1.14. Displaying the Gain Mode............................................................................................22

6.1.15. Displaying the Gain Level............................................................................................22

6.1.16. Displaying the Squelch Status.....................................................................................22

6.1.17. Displaying the Laser Status.........................................................................................23

6.1.18. Displaying the LNB Voltage Level................................................................................23

6.1.19. 22KHz Tone Status .....................................................................................................23

6.1.20. Displaying the LNB Current .........................................................................................23

6.1.21. Displaying the LNB Current Threshold Level...............................................................24

6.1.22. Displaying the Firmware Version .................................................................................24

7. VISTALINK®REMOTE MONITORING/CONTROL..........................................................................25

7.1. WHAT IS VISTALINK®?..........................................................................................................25

7.2. VISTALINK®MONITORED PARAMETERS............................................................................26

7.3. VISTALINK®CONTROLLED PARAMETERS.........................................................................26

7.4. VISTALINK®TRAPS...............................................................................................................27

7700/7800 MultiFrame Manual

7807LT-2 Dual Wideband RF Fiber Transmitter

Revision 1.2

Figures

Figure 1-1: 7807LT-2 Block Diagram.................................................................................................2

Figure 2-1: 7807LT-2 Module ............................................................................................................3

Figure 5-1: Location of 7807LT-2 Jumpers and LEDs......................................................................12

Figure 6-1: Card Edge Menu Structure............................................................................................17

Tables

Table 4-1: LED Status Indicators.....................................................................................................11

Table 7-1: VistaLINK®Monitored Parameters..................................................................................26

Table 7-2: VistaLINK®Controlled Parameters..................................................................................26

Table 7-3: VistaLINK®Traps............................................................................................................27

7700/7800 MultiFrame Manual

7807LT-2 Dual Wideband RF Fiber Transmitter

Revision 1.2

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7700/7800 MultiFrame Manual

7807LT-2 Dual Wideband RF Fiber Transmitter

Revision 1.2

REVISION HISTORY

REVISION DESCRIPTION DATE

1.0 First Release July 2011

1.1 Updated specifications, corrections Sept 2011

1.2 Updated rear plates and block diagrams June 2014

Information contained in this manual is believed to be accurate and reliable. However, Evertz assumes no responsibility for the use thereof nor for

the rights of third parties, which may be affected in any way by the use thereof. Any representations in this document concerning performance of

Evertz products are for informational use only and are not warranties of future performance, either expressed or implied. The only warranty

offered by Evertz in relation to this product is the Evertz standard limited warranty, stated in the sales contract or order confirmation form.

Although every attempt has been made to accurately describe the features, installation and operation of this product in this manual, no warranty

is granted nor liability assumed in relation to any errors or omissions unless specifically undertaken in the Evertz sales contract or order

confirmation. Information contained in this manual is periodically updated and changes will be incorporated into subsequent editions. If you

encounter an error, please notify Evertz Customer Service department. Evertz reserves the right, without notice or liability, to make changes in

equipment design or specifications.

7700/7800 MultiFrame Manual

7807LT-2 Dual Wideband RF Fiber Transmitter

Revision 1.2

CAUTION

If the LNB POWER LED is on, there will be DC voltage for LNB power at the

associated

RF INPUT connector. This can damage some test equipment. The

user can turn off the LNB power under using the card-

edge control system

under the LNBV menu item. See section 6.1.8 for details.

7700/7800 MultiFrame Manual

7807LT-2 Dual Wideband RF Fiber Transmitter

Revision 1.2 Page - 1

1. OVERVIEW

The 7807LT-2 is a dual fiber optic transmitter for RF signals in the extended L-Band frequency range and

below, for frequencies such as over-the-air DTV. It accepts two RF inputs from coaxial cable and provides

two outputs for optical transmission. An RF monitor output is provided for each input, which offers a

convenient means of obtaining peak satellite signal strength, or additional signal distribution. With two

optical transmitters per single-slot card, the 7807LT-2 provides an economical, high density solution.

Individual monitoring and control is provided for each signal path. Gain may be adjusted manually or

managed automatically via AGC. With SmartMON™, incoming RF signal strength, LNB current, and other

data are relayed over the fiber output for monitoring through SNMP/VistaLINK®at the fiber receiver

(requires SmartMON™ capable companion fiber receiver). LNB power with selectable 13/18V DC and 22

kHz tone is also provided on each RF input.

Features:

•Extended frequency response for extended L-Band, off-air DTV and other signals

•Protocol independent design - transports all modulation formats

•LNB power with selectable 13/18V DC, per input

•LNB current limit & short circuit protection

•LNB current monitoring for advance warning of LNB failure

•22kHz tone on/off for LNB local oscillator control, per input

•RF monitoring output ports for signal peaking and signal distribution

•Manual gain and AGC modes for tuning optimal CNR performance

•Multiple versions of the 7807LT-2 are available to address single-mode/multi-mode fiber, single/dual

fiber and CWDM/DWDM applications.

•The 7807LT13/15-2-W is a dual channel card that features and on-board fiber coupler, requiring only

a single fiber for the link (companion receiver is the 7807LR-2-W)

•Dual fiber transmitters on a single-slot card provides the industry’s highest density solution

•SmartMON™ capability provides remote status monitoring via SNMP without a separate data

connection

•VistaLINK® capability is available for monitoring and control when modules are used in a 3RU

7800FR frame and a 7700FC VistaLINK® frame controller is installed in slot 1 of the frame

•Form-C dry contact GPO alarm contacts for monitoring

•Fiber link provides electrical isolation between antenna and facility, mitigating ground loop and

lightning issues

•Compatible with all 2406LR, 7706LR, 7708LR and 7807LR-2 series receivers

7700/7800 MultiFrame Manual

7807LT-2 Dual Wideband RF Fiber Transmitter

Page - 2 Revision 1.2

Optical

Transmitter

Monitoring/Control

Local

Control

Fiber

Output 1

RF In/LNB

Power 1

Monitor

Out 1

Tap

Amp

VistaLINK

Interface

LED Indicators

Dot Matrix Display

Toggle Switch/

pushbutton

Optical

Transmitter

Fiber

Output 2

RF In/LNB

Power 2

Monitor

Out 2

Tap

Amp

LNB Power

Supply

Current Monitor

22 kHz Tone

LNB Power

Supply

Current Monitor

22 kHz Tone

(7807LT-2 “Non -W” version)

Coupler

(7807LT13/15-W version Only)

Fiber

Output

Figure 1-1: 7807LT-2 Block Diagram

7700/7800 MultiFrame Manual

7807LT-2 Dual Wideband RF Fiber Transmitter

Revision 1.2 Page - 3

2. INSTALLATION

The 7807LT-2 comes with a companion rear plate appropriate for a 1RU, 3RU or standalone enclosure as

specified at the time of order. SC/UPC, SC/APC, ST/UPC, FC/UPC or FC/APC optical connectors are

available and the type specified at the time of order will be installed. For information on mounting the rear

plate and inserting the module into the frame, see the 7700FR/7800FR manual for detailed instructions.

7807LT13/15-W

7807LT-2

Figure 2-1: 7807LT-2/7807LT13/15-W Module

7700/7800 MultiFrame Manual

7807LT-2 Dual Wideband RF Fiber Transmitter

Page - 4 Revision 1.2

2.1. 7807LT-2 CONNECTIONS

FIBER OUTPUTS: SC/UPC, SC/APC, FC/UPC, FC/APC or ST/UPC female connectors with the optical

outputs from the 7807LT-2. These connectors should be connected to the FIBER

IN connectors of an appropriate Evertz companion receiver model at the destination

end with suitable fiber optic cables. The 7807LT-2 may transmit 1310nm, 1550nm

or CWDM wavelengths as indicated by the part number on the card ejector. The

standard connector type is UPC. This connector type is compatible with standard

PC connectors, but for optimal return loss performance, Evertz recommends the

use of UPC fiber terminations throughout the system. The optional APC connectors

provide further enhanced return loss performance, and when specified, should be

used throughout the system.

RF IN: Input connectors for RF signals. These connectors can also provide LNB power

and 22 kHz tone back to the LNB.

RF OUT: Output connector provides buffered copy of the incoming RF signal for monitoring

purposes (signal peaking, etc.) or coaxial distribution. Although not essential, if this

connector is to remain unused, it is recommended that it be terminated with an

appropriate 75 Ohm or 50 Ohm load.

GPO’s: The 3 pin terminal strip is used for the General Purpose Outputs (GPO). Pin1 and

Pin2 refer to GPO1 and GPO2 respectively, whose behavior (NC/NO) can be

selected by a jumper. (Refer to section 5.1 for Jumper Positions). Signal on GPO

Common (C) is to be provided by the user. A minor alarm between Common and

GPO1 is triggered in a state of RF outside of threshold and major alarm between

Common and GPO2 is triggered in a state of Laser failure and/or LNB short. Each

GPO output is a set of normally open and normally closed relay contacts as shown

in Figure 2-2.

NO GPO Contact

GPO Common

from

internal

circuit

NC GPO Contact

Figure 2-2: GPO Configuration



When connecting cables to the GPO terminal block, a ferrite core should be placed

around the cable in order to reduce the electromagnetic interference to limits

acceptable for Class A digital devices. The ferrite impedance should be greater

than 70 ohms at 25MHz and greater than 135 ohms at 100MHz.

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