evertz 7700 Series User manual

7700 Multi-Frame Manual
7708LR L-Band Fiber Receiver
Revision 0.3 7708LR
TABLE OF CONTENTS
1. OVERVIEW.........................................................................................................................................1
2. INSTALLATION..................................................................................................................................2
2.1. 7708LR CONNECTIONS...........................................................................................................3
2.2. CARE AND HANDLING OF OPTICAL FIBER..........................................................................3
2.2.1. Handling And Connecting Fibers ...................................................................................3
3. TECHNICAL SPECIFICATIONS........................................................................................................4
3.1.1. RF Output:......................................................................................................................4
3.1.2. Optical Input:..................................................................................................................4
3.1.3. Electrical:........................................................................................................................4
3.1.4. Physical:.........................................................................................................................4
4. STATUS INDICATORS AND DISPLAYS ..........................................................................................5
4.1.1. 7708LR Status Indicators...............................................................................................5
5. JUMPER POSITIONS ........................................................................................................................6
5.1. 7708LR JUMPERS....................................................................................................................6
5.2. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS.........................................................................................6
5.3. CONFIGURING THE MODULE FOR FIRMWARE UPGRADES ..............................................7
5.4. FACTORY AND BDM JUMPERS .............................................................................................7
6. DOT-MATRIX DISPLAY.....................................................................................................................8
6.1. 7708LR CONTROLLED PARAMETERS ................................................................................10
6.1.1. Adjusting the Optical Power Alarm Thresholds............................................................10
6.1.2. Adjusting the RF Output Power Alarm and Squelch Thresholds..................................10
6.1.3. Selecting the Output Gain Mode..................................................................................11
6.1.4. Adjusting the RF Output Gain......................................................................................11
6.1.5. Adjusting the AGC Target Level...................................................................................11
6.1.6. Enabling/Disabling Squelch Mode ...............................................................................12
6.1.7. Setting the Card Edge Display Orientation...................................................................12
6.1.8. Resetting Factory Defaults...........................................................................................12
6.2. TRANSMITTER CONTROLLABLE PARAMETERS...............................................................13
6.2.1. Adjusting the RF Input Power Alarm Thresholds .........................................................13
6.2.2. Adjusting the Internal Transmitter Temperature Alarm Thresholds..............................13
6.2.3. Adjusting the Input Voltage Alarm Thresholds.............................................................13
6.3. 7708LR MONITORED CONDITIONS AND PARAMETERS...................................................14
6.3.1. Displaying the Input Optical Power..............................................................................14

7700 Multi-Frame Manual
7708LR L-Band Fiber Receiver
7708LR Revision 0.3
6.3.2. Displaying the Output RF Power..................................................................................14
6.3.3. Displaying the Squelch Status......................................................................................14
6.4. TRANSMITTER MONITORED PARAMETERS ......................................................................15
6.4.1. Displaying the Presence of the Data Signal.................................................................15
6.4.2. Displaying the Input RF Power to the Connected Transmitter.....................................15
6.4.3. Displaying the Gain Mode of the Connected Transmitter.............................................15
6.4.4. Displaying the Gain Level of the Connected Transmitter.............................................15
6.4.5. Displaying the AGC Status of the Connected Transmitter...........................................16
6.4.6. Displaying the RF Drive Status of the Connected Transmitter.....................................16
6.4.7. Displaying the Output Optical Power of the Connected Transmitter............................16
6.4.8. Displaying the Laser Status of the Connected Transmitter..........................................16
6.4.9. Displaying Status of the Power Supply Connected to the Transmitter.........................17
6.4.10. Displaying the Internal Temperature of the Connected Transmitter.............................17
6.4.11. Displaying the LNB Mode of the Connected Transmitter.............................................17
6.4.12. Displaying the LNB Voltage of the Connected Transmitter..........................................18
6.4.13. Displaying the Firmware Version of the Connected Transmitter..................................18
6.4.14. Displaying the Model of the Connected Transmitter ....................................................18
7. VISTALINK®REMOTE MONITORING/CONTROL..........................................................................19
7.1.1. What is VistaLINK®?.....................................................................................................19
7.1.2. 7708LR VistaLINK®Monitored Parameters..................................................................20
7.1.3. 7708LR VistaLINK®Controlled Parameters.................................................................20
7.1.4. 7708LR VistaLINK®Traps............................................................................................21
Figures
Figure 1-1: 7708LR Block Diagram..................................................................................................................... 1
Figure 2-1: 7708LR Rear Panel.......................................................................................................................... 2
Figure 5-1: Location of 7708LR Jumpers and LEDs........................................................................................... 6
Figure 6-1: Card Edge Menu Structure............................................................................................................... 9

7700 Multi-Frame Manual
7708LR L-Band Fiber Receiver
Revision 0.3 7708LR
REVISION HISTORY
REVISION DESCRIPTION DATE
0.1 Initial Release Mar 07
0.2 Added UPC connector info, other updates Mar 07
0.3 Fixed Formatting and Typos May 07
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 effected 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 express 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 Multi-Frame Manual
7708LR L-Band Fiber Receiver
7708LR Revision 0.3
WARNING
!
Do not connect the 7708LR without optical attenuation to a transmitter producing
in excess of +7dBm optical power. Maximum optical input to the 7708LR is +7dBm
– more power than this will damage the receiver.

7700 Multi-Frame Manual
7708LR L-Band Fiber Receiver
Revision 0.3 7708LR - 1
1. OVERVIEW
The 7708LR Fiber Optic Receiver is used for receiving L-Band signals transported optically over fiber optic
cable by a companion transmitter. It accepts a single optical input and provides dual electrical outputs. It
is also capable of decoding and displaying monitoring data sent by compatible Evertz L-Band transmitters,
such as the 2407LT.
The 7708LR occupies one card slot and can be housed in a 1RU frame which will hold up to three
modules, a 3RU frame which will hold up to 15 modules or a standalone enclosure that will hold a single
module.
Features:
• Broadband operation - 950 to 2250MHz
• Protocol transparent - handles all video, audio and data modulation formats
• Fully hot swappable from front of frame
• Available in SC/UPC, SC/APC, ST/UPC, FC/UPC and FC/APC connector options
• Supports multi-mode and single-mode fiber optic cable
• Comprehensive signal and card status monitoring via four-digit card-edge display, or remotely through
SNMP and VistaLINK®capability
• Manual and automatic gain control modes
• Unique IGC mode compensates for optical loss and provides an output signal level proportional to the
input, with adjustable gain
• Two RF outputs for extra signal distribution or monitoring functions
• Three user selectable output RF gain settings
Optical
Receiver Splitter
L-Band
Output
Fiber
Input
L-Band
Output
RF
AMP
Monitoring &
Control
VistaLINK
Interface
LED Indicators
Dot Matrix Display
Toggle Switch/
pushbutton
RF
AMP
RF
AMP
Data
Decoder
®
Figure 1-1: 7708LR Block Diagram

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7708LR L-Band Fiber Receiver
7708LR - 2Revision 0.3
2. INSTALLATION
The 7708LR 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 manual for detailed instructions.
7708LR
RF OUT
FIBER
INPUT
Figure 2-1: 7708LR Rear Panel

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7708LR L-Band Fiber Receiver
Revision 0.3 7708LR - 3
2.1. 7708LR CONNECTIONS
FIBER INPUT SC/UPC, SC/APC, ST/UPC, FC/UPC or FC/APC female connector for the optical
input to the 7708LR. This connector should be connected with a suitable fiber optic
cable to the optical output of an appropriate transmitter at the origination end. 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 also
be used throughout the system.
L-BAND OUT Two electrical output connectors for the received L-band signals. The dual
connectors provide an extra connector for monitoring or further distribution.
"Unused connectors should be terminated with appropriate loading (50 or 75 Ohm).
2.2. CARE AND HANDLING OF OPTICAL FIBER
2.2.1. Handling And Connecting Fibers
"
Never touch the end face of an optical fiber. Always keep dust caps on optical fiber
connectors when not connected and always remember to properly clean the optical
end facet of a connector before making a connection.
The transmission characteristics of the fiber are dependent on the shape of the optical core and therefore
care must be taken to prevent fiber damage due to heavy objects or abrupt fiber bending. Evertz
recommends that you maintain a minimum bending radius of 5 cm to avoid fiber-bending loss that will
decrease the maximum attainable distance of the fiber cable. Evertz fiber optic modules come with cable
lockout devices to prevent the user from damaging the fiber by installing a module into a slot in the frame
that does not have a suitable rear plate installed.

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7708LR L-Band Fiber Receiver
7708LR - 4Revision 0.3
3. TECHNICAL SPECIFICATIONS
3.1.1. RF Output:
Connector: 2 BNC per IEC 60169 (Amendment 2), F type optional
I/O Impedance: 75 Ω(50 Ωoptional)
Return Loss: >15dB
Output:
AGC Mode: -10 to –40 dBm (within AGC range)
Manual or IGC Mode: -10 to –65dBm (depends on the RF input level and optical loss)
IGC/AGC hold range: 30 dB
3.1.2. Optical Input:
Number of inputs: 1
Connector: Female SC/UPC, SC/APC, ST/UPC, FC/UPC, FC/APC
Operating Wavelength: 1270nm - 1610nm
Maximum Input Power:
Standard: +7dBm
3.1.3. Electrical:
Voltage: +12VDC
Power: 5 Watts
EMI/RFI: Complies with FCC regulations for class A devices
Complies with EU EMC directive.
3.1.4. Physical:
7700 or 7701 frame mounting:
Number of slots: 1

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7708LR L-Band Fiber Receiver
Revision 0.3 7708LR - 5
4. STATUS INDICATORS AND DISPLAYS
4.1.1. 7708LR Status Indicators
The 7708LR has nine LED status indicators on the front card edge to show operational status of the card
at a glance. See Figure 5-1 for LED locations.
Two large LEDs on the front of the board indicate the general health of the module:
LOCAL FAULT: This red LED indicates poor module health and will be on during the absence of a
valid optical input signal or if a local internal power fault exists (i.e.: a blown fuse).
The position of the FRAME STATUS jumper determines whether or not the LOCAL
FAULT indication is reported to the frame. (See section 5.1).
MODULE OK: This green LED indicates good module health. It will be on when a valid optical input
signal is present, and the board power is good.
There are 7 small LEDs that indicate the status of the output RF signal, and optical input signal.
RF HIGH: This red LED will be on when the output RF signal is higher than the RF high
threshold setting.
RF OK: This green LED will be on when the output RF signal is within threshold
settings.
RF LOW: This yellow LED will be on when the output RF signal is lower than the RF
low threshold setting.
OPTICAL INPUT HIGH: This red LED will be on when the input optical power is higher than the
optical power high threshold setting.
OPTICAL INPUT OK: This green LED will be on when the input optical power is within threshold
settings.
OPTICAL INPUT LOW: This yellow LED will be on when the optical power is lower than the optical
power low threshold setting.
GAIN MODE: This LED is on when AGC or IGC mode is enabled and off when Manual
mode is enabled. It will be green when power levels are within the AGC or
IGC hold range and a constant RF output level is being maintained. It will be
red if power levels are either above or below the power levels required for
operation of the AGC/IGC circuit.
SQUELCH MODE: This LED is on when squelch is enabled. It will be green when squelch is
enabled but not active. It will be red when squelch mode is enabled and the
output signal is squelched.

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7708LR L-Band Fiber Receiver
7708LR - 6Revision 0.3
5. JUMPER POSITIONS
5.1. 7708LR JUMPERS
/ MODULE OK
LOCAL FAULT
Optical High
Optical OK
Optical Low
Gain Mode
Squelch Status
DOT MATRIX DISPLAY
RF Low
RF OK
RF High
RUN/UPGRADE
FRAME
STATUS
OFF/ON
J6
Serial Upgrade Port
Pushbutton
Toggle
Switch
BDM
FACTORY
Figure 5-1: Location of 7708LR Jumpers and LEDs
5.2. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS
The FRAME STATUS jumper J3 determines whether local faults (as shown by the Local Fault indicator)
will be connected to the 7700FR frame's global status bus.
FRAME STATUS To monitor faults on this module with the frame status indicators (on the Power
Supply FRAME STATUS LEDs and on the Frame's Fault Tally output) install this
jumper in the ON position (default).
When this jumper is installed in the Off position local faults on this module will not
be monitored.

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7708LR L-Band Fiber Receiver
Revision 0.3 7708LR - 7
5.3. CONFIGURING THE MODULE FOR FIRMWARE UPGRADES
UPGRADE The UPGRADE jumper J5 is used when firmware upgrades are being done to the module.
For normal operation it should be installed in the RUN position. See the Upgrading
Firmware section of this manual for more information.
To upgrade the firmware:
1. Pull the module out of the frame.
2. Move the UPGRADE jumper into the UPGRADE position.
3. Install the Upgrade cable provided (located in the vinyl pouch in the front of this manual) onto the
SERIAL header at the card edge.
4. Re-install the module into the frame.
5. Run the upgrade as described in the Upgrading Firmware section of this manual.
6. When the upgrade is complete, remove the module from the frame, move the UPGRADE jumper into
the RUN position, remove the upgrade cable and re-install the module.
The module is now ready for normal operation.
5.4. FACTORY AND BDM JUMPERS
When shipped from the Evertz facility, the FACTORY and BDM jumpers will not be installed. These
jumpers should not be installed for any reason. If jumpers are on these positions they should be
removed.

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7708LR L-Band Fiber Receiver
7708LR - 8Revision 0.3
6. DOT-MATRIX DISPLAY
Signal and status monitoring and control of the card’s parameters are provided via the four-digit
alphanumeric display located on the card edge. The card-edge toggle-switch (see Figure 5-1) is used to
navigate through the display menus and the push button is used to select options. Figure 6-1 provides a
quick reference to the display menu structure.
CTRL menu items have user-adjustable configuration values associated with them. STAT menu items
display operating conditions or configuration values, but do not allow adjustment.
If a specific menu selection has a configuration value associated with it, then this may be changed using
the toggle switch. Pressing the pushbutton will apply the displayed value and return you to the previous
menu level.
The most recent user selection will be maintained in non-volatile memory in the event of power
loss to the module.

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7708LR L-Band Fiber Receiver
Revision 0.3 7708LR - 9
LASR...ERR (Laser Error)
OK (Laser OK)
Pushbutton ?
Top Level Menu Level 1
Indications
CTRL (Control)
Selections
STAT (Status)
Menu Level 3
?
Toggle
Switch
?
Menu Level 4
TX (Transm itter)
INPL (Input RF Level) +10 to -65 dBm
Indications
PRES (Return data present)
LOSS (Return data not
present)
Indications
TONE (Return data tone)
Selections
MODE (Gain Mode)
Selections
RPWR (RF output power) 0 to -60 dBm
Indications
+7 to -40 dBm or LOW
Indications
OPWR (Optical input power)
Selections
SQL (Squelch status) DIS (Disabled)
ACT (Enabled and active)
NACT (Enabled and not active)
Indications
RX (Receiver)
Menu Level 2 Menu Level 5
Indications
AGC (AGC mode)
MAN (Manual gain)
GAIN (Gain level applied) 0to +31 dBm
Indications
AGC (AGC Status)
Indications
OFF (Manual gain mode)
OK (Input within AGC range )
HIGH (Input above AGC range)
LOW (Input below AGC range)
RFDR (RF D rive)
Indications
HIGH (Overdriving laser)
OK (Normal drive)
LOW (Underdriving laser)
OPWR (Optical output power) +10 to -10 dBm
Indications
LASR (Laser Status)
Indications
OK (OK)
DGRD (Degraded)
PSU (Power Supply)
VOLT (Voltage )
Selections
STAT (Status)
10 to 23 Volts
Indications
Indications
OK (OK)
FAIL (Redundant PSU Failed)
TEMP (Internal temperature) Indications
-40 to +125 deg. C
Indications
OFF (O ff)
BYP (DC Pass m ode)
BYPT (DC Pass +22 kHz)
LNBM (LNB Power Mode)
VER (Firmware version) Indications
Firm ware version
TYPE (Transmitter model) Indications
Transmitter model
VER (Firmware version) Indications
Firm ware version
RX (Receiver)
OPTH (Optical Alarm
Threshold)
LWR (Lower)
Selections
UPPR (Upper)
-1 to -40 dBm
Selections
Selections
+7 to 0 dBm
RFTH (RF Thresholds)
LWR (Lower alarm threshold )
Selections
UPPR (Upper alarm threshold)
-30 to -55 dBm
Selections
Selections
0 to -29 dBm
SQL (Squelch threshold)
Selections
-40 to -65 dBm
MODE (Gain Mode)
Selections
AGC (AGC mode)
IGC (IGC mode)
MAN (Manual gain)
GAIN (Manual gain) Selections
-10 to 31.5 dBm
OUTL (AGC target level) Selections
-10 to -40 dBm
SQL (Squelch)
Selections
EN (Squelch enabled)
DIS (Squelch disabled)
RFTH (RF Alarm Threshold)
LWR (Lower)
Selections
UPPR (Upper)
-30 to -65 dBm
Selections
Selections
0 to -29 dBm
TPTH (Temperature Alarm
Threshold)
LWR (Lower)
Selections
UPPR (Upper)
-40 to +125 deg. C
Selections
Selections
-40 to +125 deg. C
PWTH (Input Power Alarm
Threshold)
LWR (Lower)
Selections
UPPR (Upper)
11 to 23 Volts DC
Selections
Selections
11 to 23 Volts DC
DISP (Display Orientation) HORZ (Horizontal)
VERT (Vertical)
Selections
FRST (Restore factory default
settings) YES (Perform reset)
NO (Do not perform reset)
Selections
TX (Transm itter)
Figure 6-1: Card Edge Menu Structure

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7708LR L-Band Fiber Receiver
7708LR - 10 Revision 0.3
6.1. 7708LR CONTROLLED PARAMETERS
To change the 7708LR parameters, select the CTRL menu item in menu level 1. Use the toggle switch to
select the TX menu item and press the pushbutton. The toggle switch may then be used to select the
parameter to change as described below:
6.1.1. Adjusting the Optical Power Alarm Thresholds
The 7708LR measures and can display the input optical power over a range of +7dBm to –40dBm in
increments of 1dBm. Alarm points may be set for high input optical power, and low input optical power.
These alarms will appear locally on the card edge LEDs (see section 3) and remotely via SNMP traps. To
adjust the optical power alarm thresholds, select the CTRL menu item in the first menu level, then use the
toggle switch to display the RX option and press the pushbutton to select it. Use the toggle switch to
display the OPTH option and press the pushbutton to select it. Use the toggle switch to then select from
the UPPR and LWR thresholds. Choices are as follows:
LWR -1 to –40 dBm Lower optical power alarm threshold (default –30 dBm)
UPPR +7 to 0 dBm Upper optical power alarm threshold (default +7 dBm)
6.1.2. Adjusting the RF Output Power Alarm and Squelch Thresholds
The 7708LR measures and can display the output RF power over a range of 0dBm to –60dBm in
increments of 1dBm. Alarms may be set for high and low output RF power that will appear locally on the
card edge LEDs (see section 3) and remotely via SNMP traps. To set the alarm threshold points, select
the CTRL menu item in the first menu level, then use the toggle switch to display the RX option and press
the pushbutton to select it. Use the toggle switch to display the RFTH option and press the pushbutton to
select it. Use the toggle switch to then select from the UPPR and LWR thresholds. Choices are as follows:
LWR -30 to –55 dBm Lower RF power alarm threshold (default –55 dBm)
UPPR 0 to -29 dBm Upper optical power alarm threshold (default -5 dBm)
Additionally, the RF Squelch threshold may be set from this menu via the SQL selection. The squelch
level is based on the RF input power to the transmitter, and therefore this threshold feature will only
function when a compatible transmitter that sends monitoring information down the fiber is connected,
such as the 2407LT.
SQL -40 to –65 dBm RF power entering at the transmitter at which point the output should be
squelched (default –60 dBm)

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7708LR L-Band Fiber Receiver
Revision 0.3 7708LR - 11
6.1.3. Selecting the Output Gain Mode
The 7708LR has several gain modes available:
Manual gain mode allows the user to select a fixed gain level for the RF signal.
AGC (automatic gain control) will maintain a constant output level even if the input RF level changes, as
long as this input level does not go outside of the AGC hold range. The AGC target level is user
adjustable (see section 6.1.5).
IGC mode compensates for optical loss and outputs an RF signal level proportional to what is coming into
the transmitter, within the signal level capabilities of the receiver. The IGC mode is based on the RF input
power to the transmitter, and therefore this feature will only function when a compatible transmitter that
sends monitoring information down the fiber is connected, such as the 2407LT. With no gain applied, the
output signal from the 7780LR will be at the same level as the input to the transmitter. Additional gain may
be applied to this signal level. Note that this mode will not be available unless an appropriate
transmitter that sends monitoring data down the fiber is connected.
To select the gain mode, select the CTRL menu item in the first menu level, then use the toggle switch to
display the RX option and press the pushbutton to select it. Use the toggle switch to display the MODE
option and press the pushbutton to select it. Choices are as follows:
AGC AGC mode (default)
IGC IGC mode
MAN Manual mode
6.1.4. Adjusting the RF Output Gain
The 7708LR can apply gain to adjust the level of the output signal in 0.5 dB increments. Gain may be
applied when the card is set for manual or IGC modes. To set the gain, select the CTRL menu item in the
first menu level, then use the toggle switch to display the RX option and press the pushbutton to select it.
Use the toggle switch to display the GAIN option and press the pushbutton to select it. Choices are as
follows:
-10 to +31.5 dBm Output signal gain level (default 0 dBm)
Note that this menu item is not applicable and therefore not visible when in AGC mode.
6.1.5. Adjusting the AGC Target Level
The target output level to be maintained by the 7708LR when in AGC mode is user adjustable. To set the
AGC target level, select the CTRL menu item in the first menu level, then use the toggle switch to display
the RX option and press the pushbutton to select it. Use the toggle switch to display the OUTL option and
press the pushbutton to select it. Choices are as follows:
-10 to -40 dBm AGC output signal target level (default –20 dBm)
"Note that this menu item is only applicable and visible when the card is set to
operate in AGC mode.

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7708LR L-Band Fiber Receiver
7708LR - 12 Revision 0.3
6.1.6. Enabling/Disabling Squelch Mode
Squelch mode will turn off the RF output if it drops below a certain input power level as reported by the
transmitter (see section 6.1.2) or if the input optical power drops below –40 dBm. To enable or disable
squelch mode, select the CTRL menu item in the first menu level, then use the toggle switch to display the
RX option and press the pushbutton to select it. Use the toggle switch to display the SQL option and
press the pushbutton to select it. Choices are as follows:
EN Enable squelch mode
DIS Disable squelch mode (default)
6.1.7. Setting the Card Edge Display Orientation
The DISP display option allows the user to set a horizontal or vertical orientation for the card edge display
messages. To set the display orientation, select the CTRL menu item in menu level 1, then use the toggle
switch to display the DISP menu selection and use the pushbutton to select it. Use the toggle switch to
change between HOR and VERT. Press the pushbutton to make your selection.
HOR Horizontal display used when the module is housed in the 1 rack unit 7701FR frame or
the stand-alone enclosure.
VERT Vertical display used when the module is housed in the 3-rack unit 7700FR frame.
6.1.8. Resetting Factory Defaults
The FRST menu option will return the 7708LR to factory defaults. To return all settings to factory defaults,
select the CTRL menu item in menu level 1, then use the toggle switch to display the FRST menu selection
and use the pushbutton to select it. Selections are as follows:
YES Perform factory reset
NO Do not perform factory reset

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7708LR L-Band Fiber Receiver
Revision 0.3 7708LR - 13
6.2. TRANSMITTER CONTROLLABLE PARAMETERS
The 7708LR can decode and display monitoring data sent across the fiber by compatible Evertz
transmitters (e.g. 2407LT). Several of these monitored parameters are suitable for alarming via
SNMP/VistaLINK®. The thresholds for these alarms may be adjusted via the card edge or through SNMP.
Note that these menu items will not be available unless an appropriate transmitter that sends
monitoring data down the fiber is connected.
6.2.1. Adjusting the RF Input Power Alarm Thresholds
SNMP alarms may be set for high and low input RF power to the transmitter. To set the alarm threshold
points, select the CTRL menu item in the first menu level, then use the toggle switch to display the TX
option and press the pushbutton to select it. Use the toggle switch to display the RFTH option and press
the pushbutton to select it. Use the toggle switch to then select from the UPPR and LWR thresholds.
Choices are as follows:
LWR -30 to –55 dBm Lower RF power alarm threshold (default –65 dBm)
UPPR 0 to -29 dBm Upper optical power alarm threshold (default -5 dBm)
6.2.2. Adjusting the Internal Transmitter Temperature Alarm Thresholds
SNMP alarms may be set for high and low internal temperature readings at the transmitter. To set the
alarm threshold points, select the CTRL menu item in the first menu level, then use the toggle switch to
display the TX option and press the pushbutton to select it. Use the toggle switch to display the TPTH
option and press the pushbutton to select it. Use the toggle switch to then select from the UPPR and LWR
thresholds. Choices are as follows:
LWR -40 to +125 deg C. Lower temperature alarm threshold (default 0 deg C.)
UPPR -40 to +125 deg C. Upper temperature alarm threshold (default 85 deg C.)
6.2.3. Adjusting the Input Voltage Alarm Thresholds
SNMP alarms may be set for high and low DC input Voltage at the transmitter. To set the alarm threshold
points, select the CTRL menu item in the first menu level, then use the toggle switch to display the TX
option and press the pushbutton to select it. Use the toggle switch to display the PWTH option and press
the pushbutton to select it. Use the toggle switch to then select from the UPPR and LWR thresholds.
Choices are as follows:
LWR 11 to 23 VDC Lower input voltage alarm threshold (default 11 VDC.)
UPPR 11 to 23 VDC Upper input voltage alarm threshold (default 20 VDC.)

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6.3. 7708LR MONITORED CONDITIONS AND PARAMETERS
To view the 7708LR monitored parameters, select the STAT menu item in menu level 1. Use the toggle
switch to select the RX menu item and press the pushbutton. The toggle switch may then be used to
select the parameter to view as described below:
6.3.1. Displaying the Input Optical Power
The 7708LR measures and can display the input optical power over a range of +7dBm to –40dBm in
increments of 1dBm. To display the input optical power, select the STAT menu item in the first menu level,
then use the toggle switch to display the RX option and press the pushbutton to select it. Use the toggle
switch to display the OPWR option and press the pushbutton to select it. The display will show one of the
following:
+7 to –40 Optical input power within this range
LOW Input optical power low (< -40 dBm)
.
6.3.2. Displaying the Output RF Power
The 7708LR measures and can display the output RF power over a range of 0dBm to –60dBm in
increments of 1dBm. To display the output RF power, select the STAT menu item in the first menu level,
then use the toggle switch to display the RX option and press the pushbutton to select it. Use the toggle
switch to display the OPWR option and press the pushbutton to select it. The display will show one of the
following:
0to –60 dBm Output RF power within this range
6.3.3. Displaying the Squelch Status
To display the squelch mode setting and status, select the STAT menu item in the first menu level, then
use the toggle switch to display the RX option and press the pushbutton to select it. Use the toggle
switch to display the SQL option and press the pushbutton to select it. The display will show one of the
following:
DIS Squelch mode disabled
ACT Squelch mode enabled and active (output signal squelched)
NACT Squelch mode enables and not active

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6.4. TRANSMITTER MONITORED PARAMETERS
The 7708LR can decode and display monitoring data sent across the fiber by compatible Evertz
transmitters (e.g. 2407LT). To view the monitored parameters of the connected transmitter, select the
STAT menu item in menu level 1. Use the toggle switch to select the TX menu item and press the
pushbutton. The toggle switch may then be used to select the parameter to view as described below.
Note that these parameters will not be available for viewing unless the connected transmitter has the
feature to send monitoring data down the fiber.
6.4.1. Displaying the Presence of the Data Signal
The 7708LR detects and can display the presence or loss of the data signal from a companion transmitter.
To display the display the status of this data signal, select the STAT menu item in the first menu level, then
use the toggle switch to display the TX option and press the pushbutton to select it. Use the toggle switch
to display the TONE option and press the pushbutton to select it. The display will show one of the
following:
PRES Data signal from connected transmitter present
LOSS No data signal detected
"Note: The following menu items will not be displayed unless the data signal is
detected.
6.4.2. Displaying the Input RF Power to the Connected Transmitter
To display the input RF power to the transmitter, select the STAT menu item in the first menu level, then
use the toggle switch to display the TX option and press the pushbutton to select it. Use the toggle switch
to display the INPL option and press the pushbutton to select it. The display will show:
+10 to –65 Input RF power in dBm
6.4.3. Displaying the Gain Mode of the Connected Transmitter
To display the gain mode of the connected transmitter, select the STAT menu item in the first menu level,
then use the toggle switch to display the TX option and press the pushbutton to select it. Use the toggle
switch to display the MODE option and press the pushbutton to select it. The display will show:
AGC Gain mode is AGC (automatic gain control)
MAN Gain mode is manual
6.4.4. Displaying the Gain Level of the Connected Transmitter
To display the gain level of the connected transmitter, select the STAT menu item in the first menu level,
then use the toggle switch to display the TX option and press the pushbutton to select it. Use the toggle
switch to display the GAIN option and press the pushbutton to select it. The display will show:
0 to 31 dB Gain level set either manually, or automatically applied by the transmitter if in
AGC mode

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6.4.5. Displaying the AGC Status of the Connected Transmitter
To display the AGC Status of the connected transmitter, select the STAT menu item in the first menu level,
then use the toggle switch to display the TX option and press the pushbutton to select it. Use the toggle
switch to display the AGC option and press the pushbutton to select it. The display will show:
OFF AGC mode is off (transmitter is set for manual gain mode)
OK AGC mode is selected, and the input RF power to the transmitter is within the AGC
hold range
HIGH AGC mode is selected, and the input RF power to the transmitter is above the AGC
hold range
LOW AGC mode is selected, and the input RF power to the transmitter is below the AGC
hold range
6.4.6. Displaying the RF Drive Status of the Connected Transmitter
To display the RF Drive status of the connected transmitter, select the STAT menu item in the first menu
level, then use the toggle switch to display the TX option and press the pushbutton to select it. Use the
toggle switch to display the RFDR option and press the pushbutton to select it. The display will show:
OK Laser is being driven at normal levels
HIGH Laser is being over driven – this may appear as IMD products on the received signal
LOW Laser is being under-driven – this may appear as low S/N ratio on the received
signal
6.4.7. Displaying the Output Optical Power of the Connected Transmitter
To display the output optical power of the connected transmitter, select the STAT menu item in the first
menu level, then use the toggle switch to display the TX option and press the pushbutton to select it. Use
the toggle switch to display the OPWR option and press the pushbutton to select it. The display will show:
+10 to –10 dBm Laser output power
6.4.8. Displaying the Laser Status of the Connected Transmitter
To display the laser status of the connected transmitter, select the STAT menu item in the first menu level,
then use the toggle switch to display the TX option and press the pushbutton to select it. Use the toggle
switch to display the LASR option and press the pushbutton to select it. The display will show:
OK Laser is operating normally
DGRD Laser operation is degraded, or laser has reached approximately 80% of its useful
lifespan