evertz 7700 Series User manual

7700 MultiFrame Manual
7707BPX-TR Optical Bypass Protection Switch
Revision 1.2
TABLE OF CONTENTS
1. OVERVIEW.......................................................................................................................................... 1
1.1. TYPICAL CONFIGURATION...................................................................................................... 2
2. INSTALLATION................................................................................................................................... 3
2.1. OPTICAL INPUTS AND OUTPUTS ........................................................................................... 3
2.2. GPIO I/O ..................................................................................................................................... 4
2.3. CIT INTERFACE......................................................................................................................... 5
2.4. CARE AND HANDLING OF OPTICAL FIBER............................................................................ 5
2.4.1. Safety.............................................................................................................................. 5
2.4.2. Handling and Connecting Fibers..................................................................................... 5
3. SPECIFICATIONS............................................................................................................................... 6
3.1. RECEIVE OPTICAL SIGNAL PATH........................................................................................... 6
3.2. TRANSMIT OPTICAL SIGNAL PATH........................................................................................ 6
3.3. GENERAL PURPOSE INPUTS.................................................................................................. 6
3.4. GENERAL PURPOSE OUTPUTS.............................................................................................. 6
3.5. SERIAL CONTROL PORT (CIT)................................................................................................ 6
3.6. ELECTRICAL ............................................................................................................................. 7
3.7. PHYSICAL.................................................................................................................................. 7
4. CARD-EDGE MONITORING AND CONTROLS................................................................................. 8
4.1. STATUS INDICATOR LEDS....................................................................................................... 8
4.2. DOT-MATRIX DISPLAY AND CONTROLS................................................................................ 8
4.2.1. Displaying the Optical Power .......................................................................................... 9
4.2.2. Setting the Optical Power Threshold for Auto Mode Switching....................................... 9
4.2.3. Displaying the Card Status.............................................................................................. 9
4.2.4. Changing the Orientation of the Text on the Display....................................................... 9
4.3. DIP SWITCH CONTROLS........................................................................................................ 10
4.3.1. Controlling the Optical Switch Operating Mode............................................................. 11
4.3.2. Controlling the Local Fault Buzzer ................................................................................ 11
5. JUMPERS.......................................................................................................................................... 12
5.1. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS ........................................................................................ 12
5.2. SELECTING WHETHER MODULE WILL BE CONTROLLED FROM THE LOCAL
CONTROLS OR THROUGH THE VISTALINK
®
INTERFACE ................................................... 12
5.3. CONFIGURING THE MODULE FOR FIRMWARE UPGRADES.............................................. 12

7700 MultiFrame Manual
7707BPX-TR Optical Bypass Protection Switch
Revision 1.2
6. CIT INTERFACE MONITORING/CONTROL..................................................................................... 13
6.1. CONNECTING THE CIT PORT................................................................................................. 13
6.2. STATUS INFORMATION COMMANDS ................................................................................... 13
6.3. SWITCHING THRESHOLD CONTROL COMMANDS.............................................................. 15
6.4. SWITCHING MODE CONTROL COMMANDS......................................................................... 15
6.5. MANUAL SWITCH CONTROL COMMANDS........................................................................... 15
6.6. SOFTWARE UPGRADE CONTROL COMMAND .................................................................... 15
6.7. INTERFACE HELP MENU COMMAND.................................................................................... 15
7. VISTALINK
®
REMOTE MONITORING/CONTROL........................................................................... 16
7.1. WHAT IS VISTALINK
®
?............................................................................................................. 16
7.2. VISTALINK
®
MONITORED PARAMETERS .............................................................................. 16
7.3. VISTALINK
®
CONTROLLED PARAMETERS ........................................................................... 17
Figures
Figure 1-1: 7707BPX-TR Block Diagram..............................................................................................................2
Figure 1-2: Bi-Directional Switch Configuration....................................................................................................2
Figure 2-1: 7707BPX-TR Rear Panel....................................................................................................................3
Figure 2-2: Contact Closure Input Circuitry...........................................................................................................4
Figure 2-3: Contact Closure Output Configuration................................................................................................4
Tables
Table 2-1: CIT Interface Connector Pin Definitions ..............................................................................................5
Table 4-1: DIP Switch Functions.........................................................................................................................10
Table 4-2: Operating Mode Switch Settings .......................................................................................................11
Table 4-3: Local Fault Buzzer Enable Settings...................................................................................................11
Table 7-1: VistaLINK
®
Monitored Parameters.....................................................................................................16
Table 7-2: VistaLINK
®
Controlled Parameters....................................................................................................17

7700 MultiFrame Manual
7707BPX-TR Optical Bypass Protection Switch
Revision 1.2
REVISION HISTORY
REVISION DESCRIPTION DATE
1.0 First Version Jan 03
1.1 Fixed Typos and Formatting Jul 07
1.2 Minor formatting updates April 09
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 MultiFrame Manual
7707BPX-TR Optical Bypass Protection Switch
Revision 1.2
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7700 MultiFrame Manual
7707BPX-TR Optical Bypass Protection Switch
Revision 1.2 Page-1
1. OVERVIEW
The 7707BPX-TR Optical Bypass Switch provides a complete solution for redundancy management in
wide band optical systems. Automatic switching supports 1+1 redundancy for forward and return optical
transmission paths. Adjustable switching thresholds and manual switching functions allow the 7707BPX-
TR module to be used in a wide variety of applications.
The 7707BPX-TR provides several methods of monitoring and control. The 7707BPX-TR has integrated
VistaLINK
®
technology control and monitoring capability via SNMP. Control and monitoring can also be
performed using the card-edge user interface and DOT matrix display, using the Craft Interface Terminal
(CIT) serial port or through GPI control inputs. Control and monitoring of the remote-end switch is also
possible from the local-end location using an in-band bi-directional Optical Supervisory Channel (OSC).
This provides the user with the ability to locally or remotely configure and monitor parameters such as
module status, selected input, power level and switching thresholds.
The 7707BPX-TR occupies two card slots and can be housed in either a 3 RU frame, which will hold up to
7 modules, a 1RU frame, which will hold up to three modules, or a stand alone enclosure, which will hold
one module.
Features:
•Intelligent auto-switching with input power detection and user definable thresholds
•Comprehensive signal and status monitoring and control:
•Via SNMP and VistaLINK
®
enabled capability
•Via four-digit card-edge display and controls
•Via interface to Craft Interface Terminal (CIT)
•Via contact closure inputs and outputs
•Control and monitoring of remote end-switch is possible from the local-end location using an in-band
bi-directional optical supervisory channel (OSC) operating at 1625nm.
•Optical switch position is maintained during power loss or card failure
•Configuration is maintained during maintenance replacement of card units
•Fully hot-swappable from front of frame with no fiber disconnect/reconnect required
•Accepts any wavelength in the 1270nm to 1625nm range
•Supports Single mode (8-10 µm) fiber optic cable
•SC/PC, ST/PC or FC/PC fiber connector options

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7707BPX-TR Optical Bypass Protection Switch
Page-2 Revision 1.2
VistaLINK
®
Interface
Receive
Optical Output 2x1 Passive
Optical
Swtich
Passive
Optical
Combiner
Passive
Optical
Separator
Optical
Supervisory
Channel
Passive
Optical
Splitter
Passive
Optical
Splitter
Optical
Power
Monitoring
Optical
Power
Monitoring
Card-edge
Interface
Monitoring
and Control
CIT Interface
Contact Closure
Interface
Transmit
Optical Input
A
Receive
Optical Inputs
B
A
Transmit
Optical Outputs
B
Figure 1-1: 7707BPX-TR Block Diagram
1.1. TYPICAL CONFIGURATION
Optical
Transmitter
Optical
Receiver Optical Transmitter
Optical
Receiver
7707BPX-TR 7707BPX-TR
NMS
Remote-End
Location
Local-End
Location
Figure 1-2: Bi-Directional Switch Configuration

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7707BPX-TR Optical Bypass Protection Switch
Revision 1.2 Page-3
2. INSTALLATION
The 7707BPX-TR comes with a companion rear plate that has six SC/PC (shown), ST/PC or FC/PC
optical connectors, a DB-9 type connector, and a six pin terminal strip. For information on mounting the
rear plate and inserting the module into the frame see section 3 of the 7700FR chapter.
7707BPX-TR
RECEIVE
OUTPUT
TRANSMIT
INPUT
RECEIVE
A INPUT B
TRANSMIT
A OUTPUT B
CIT INTERFACE
GPI/O
GPI1
GPI2
NC
NO
COM
GND
Figure 2-1: 7707BPX-TR Rear Panel
2.1. OPTICAL INPUTS AND OUTPUTS
RECEIVE INPUTS A, B: The dual SC/PC (shown) ST/PC or FC/PC female connectors are the wide
band optical inputs to the switch for the incoming signal path. The A
connector is for the Main input and the B connector is for the Standby input.
RECEIVE OUTPUT: This SC/PC (shown) ST/PC or FC/PC female connector is the optical output
from the switch for the incoming signal path.
TRANSMIT INPUT: This SC/PC, (shown) ST/PC or FC/PC female connector is the wide band
optical input to the splitter/combiner for the outgoing signal path.

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7707BPX-TR Optical Bypass Protection Switch
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TRANSMIT OUTPUTS A, B: The dual SC/PC (shown) ST/PC or FC/PC female connectors are the
optical outputs from the splitter/combiner for the outgoing signal path. The A connector is for
the Main Output and the B connector is for the Standby Output.
2.2. GPIO I/O
A 6 pin terminal strip labeled CONTACT CLOSURE INTERFACE contains 2 contact closure inputs and 1
contact closure output.
GPI’s: The two top pins on the 6 pin terminal strip are used for two contact closure inputs. These
inputs are opto-isolated, with an internal current-limited bias to +5V as shown in Figure 2-2.
GPI
GND
Contact
Closure
To Internal
Circuit
Current
Limiter
+5V
Figure 2-2: Contact Closure Input Circuitry
GPO The NC, NO and COM pins on the 6 pin terminal strip comprise the contact closure output.
The contact closure output is a set of normally open and normally closed relay contacts as
shown in Figure 2-3.
NO Contact
Common From
Internal
Circuit
NC Contact
Figure 2-3: Contact Closure Output Configuration

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Revision 1.2 Page-5
2.3. CIT INTERFACE
A 9 pin female D connector CIT INTERFACE contains an RS-232 serial port for control and monitoring via
a local PC or Craft Interface Terminal (CIT). See section 6 for information on using the CIT interface.
Pin # Function
1 ---
2 TX
3 RX
4 ---
5 GND
6 ---
7 ---
8 ---
9 ---
Table 2-1: CIT Interface Connector Pin Definitions
2.4. CARE AND HANDLING OF OPTICAL FIBER
2.4.1. Safety
!
Never look directly into an optical fiber. Non-reversible damage to the eye can
occur in a matter of milliseconds.
The laser modules used in the Evertz fiber optic modules are Class I, with a maximum output power of
2mW, and wavelengths of either 1310 nm or 1270 to 1610 nm.
2.4.2. Handling and Connecting Fibers
" Never touch the end face of an optical fiber.
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 3 cm to avoid fiber-bending loss that will
decrease the maximum attainable distance of the fiber cable. The 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 I/O module. For further information about care and handling of fiber
optic cable see section 3 of the Fiber Optics System Design chapter of this manual.

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7707BPX-TR Optical Bypass Protection Switch
Page-6 Revision 1.2
3. SPECIFICATIONS
3.1. RECEIVE OPTICAL SIGNAL PATH
Number: 2 optical inputs, 1 optical output
Connectors: Female SC/PC, ST/PC or FC/PC
Maximum Insertion Loss: 4dB
Maximum Switch Time: 20 msec
Maximum Input Power: +5dBm
Minimum Input Sensitivity: -33dBm
Minimum Optical Return Loss: TBD
Maximum Optical Crosstalk: -60dB
Switch Loss Repeatability: ±0.1dB
Passband Wavelength: 1270 to 1570nm
Service Channel Wavelength: 1625 ±25nm
Fiber Size: 9 µm core / 125 µm overall
3.2. TRANSMIT OPTICAL SIGNAL PATH
Number: 1 optical input, 2 optical outputs
Connectors: Female SC/PC, ST/PC or FC/PC
Maximum Insertion Loss: 4dB
Maximum Input Power: +5dBm
Passband Wavelength: 1270 to 1570nm
Service Channel Wavelength: 1625 ±25nm
Service Channel Optical Power: -3.5dBm
Fiber Size: 9 µm core / 125 µm overall
3.3. GENERAL PURPOSE INPUTS
Number of Inputs: 2
Type: Opto-isolated, active low with internal pull-ups to +5V
Connector: 2 pins plus ground on 6 pin terminal strip
Signal Level: Low: -5 to +2.5 VDC, High: 3.5 to 10 VDC
Maximum Source Current: 15 mA (input shorted to ground)
3.4. GENERAL PURPOSE OUTPUTS
Number of Outputs: 1
Type: Dry Contact relay - normally open and normally closed contact provided
Connector: 3 pins on 6 pin terminal strip
3.5. SERIAL CONTROL PORT (CIT)
Number of Ports: 1 RS-232
Connector: Female DB-9
Baud Rate: 57600
Format: 8 bits, no parity, 2 stop bits and no flow control

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Revision 1.2 Page-7
3.6. ELECTRICAL
Voltage: +12VDC
Power: 5 Watts
3.7. PHYSICAL
7700 frame mounting: 2 slots
7701 frame mounting: 1 slot

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7707BPX-TR Optical Bypass Protection Switch
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4. CARD-EDGE MONITORING AND CONTROLS
The 7707BPX-TR has 6 LED Status indicators and a 4 digit alphanumeric display on the front card edge to
show operational status of the card at a glance. The card edge pushbutton is used to select various
displays on the alphanumeric display. There is also an audible buzzer to alert the user to module faults or
loss of optical input.
4.1. STATUS INDICATOR LEDS
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 on the Main Input, or if a frame power fault exists (i.e.: a
blown fuse). The LOCAL FAULT indication can also be reported to the frame
through the FRAME STATUS jumper.
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 four small LEDs beside the LED display that indicate the status of the module.
CH-A POWER: This Red LED indicates when the optical power on Receive Input A is below the
switching threshold. (See section 4.2.2)
CH-B POWER: This Red LED indicates when the optical power on Receive Input B is below the
switching threshold. (See section 4.2.2)
CH-A ACTIVE: This Green LED indicates that Receive Input A is active and is connected to the
Receive Output.
CH-B ACTIVE: This Green LED indicates that Receive Input B is active and is connected to the
Receive Output.
4.2. DOT-MATRIX DISPLAY AND CONTROLS
Additional signal and status monitoring and control of the card’s parameters are provided via the 4-digit
alphanumeric display located on the card edge. To select one of the display modes, press the pushbutton
one or more times. Each time the push button is pressed the display advances to the next state. A
message indicating what display mode is active is shown for one second. After one second without the
pushbutton being pressed, the selected display data is shown. When in a particular display mode, the
toggle switch may be used to change values or states of the particular menu item. The following display
messages indicate what is being displayed. The details of the each of the displays are described in
sections 4.2.1 to 4.2.4.
PWRA Display the optical input power of Receive Input A
PWRB Display the optical input power of Receive Input B
MINA Set the minimum optical power threshold for Receive Input A
MINB Set the minimum optical power threshold for Receive Input B
STAT Display current status of card state
DISP Change the orientation of the Display

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7707BPX-TR Optical Bypass Protection Switch
Revision 1.2 Page-9
4.2.1. Displaying the Optical Power
The 7707BPX-TR detects the optical input power of both Receive Input channels and displays this to the
four-digit card-edge display. The following list describes possible values for the PWRA and PWRB display
states.
+5 to –40 Optical input power in dBm.
>+5 Optical input power is in excess of +5dBm.
<-40 Optical input power is below -40dBm.
4.2.2. Setting the Optical Power Threshold for Auto Mode Switching
The MINA and MINB display states allow you to define the minimum optical input power threshold before
an auto switch function will occur. The optical power threshold may be defined independently for each of
the Receive Input channels. To increase the optical power threshold press the toggle switch up. To
decrease the optical power threshold press the toggle switch down. An optical input power above the
threshold value will be considered valid. An optical input power below the threshold value will be
considered invalid. Switching will occur as per the selected mode of operation. The following list describes
possible values for the MINA and MINB display states.
+5 to –40 Optical power threshold in dBm.
4.2.3. Displaying the Card Status
The STAT displays show the status of the contact closure inputs and output, and the state of the optical
switch. When you first enter the STAT display, the state of Contact Closure Input 1 will be shown. To
change to the other status displays, press the toggle switch. The following list describes possible displays
and their meaning.
I1-H or I1-L Indicates state of Contact Closure Input 1 to be High or Low
I2-H or I2-L Indicates state of Contact Closure Input 2 to be High or Low
O-ON or O-OF Indicates state of Contact Closure Output to be High or Low
CH-A or CH-B Indicates state of optical switch to be Receive Input A or Receive Input B
4.2.4. Changing the Orientation of the Text on the Display
The DISP display allows the user to select a horizontal or vertical orientation for the displays to
accommodate mounting the module in the 3RU or 1RU frames. To change the orientations of the display
press the toggle switch. The following list describes possible displays and their meaning.
VERT Vertical orientation suitable for modules installed in the 3RU frame.
HOR Horizontal orientation suitable for modules installed in the 1RU frame.

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7707BPX-TR Optical Bypass Protection Switch
Page-10 Revision 1.2
4.3. DIP SWITCH CONTROLS
The 7707BPX-TR is equipped with a 4 position DIP switch to allow the user to select various functions.
DIP switch 1 is located at the top of the DIP switch (farthest from to the card ejector). Table 4-1 gives an
overview of the DIP switch functions. Sections 4.3.1 and 4.3.2 give a detailed description of each of the
DIP switch functions. The On position is down, or closest to the printed circuit board.
DIP
Switch Function
1 Auto Switch Back Enable
2 Manual Control Enable
3 Local Fault Buzzer Enable
4 Dual GPI Control Enable
Table 4-1: DIP Switch Functions

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7707BPX-TR Optical Bypass Protection Switch
Revision 1.2 Page-11
4.3.1. Controlling the Optical Switch Operating Mode
DIP switches 1, 2 and 4 allow the user to select one of four operating modes for the 7707BPX-TR.
DIP 1
Switch
Back
DIP 2
Manual
Control
DIP 4
Dual GPI
Control
Mode
Name Mode Description
--- On Off
Manual,
Single GPI Switch to input A if GPI1 is Active Switch to input B if GPI1 is Inactive
--- On On
Manual,
Dual GPI Switch to input A if GPI1 is Active Switch to input B if GPI2 is Active
Off Off --- Auto, Without
switch back
Switch to input A if GPI1 is Active
Switch to input B if GPI2 is Active
If both GPIs are inactive then switch to input B if power
on input A is below threshold. Use GPI1 to switch
back to input A
On Off --- Auto, With
switch back
Switch to input A if GPI1 is Active
Switch to input B if GPI2 is Active
If both GPIs are inactive then switch to input B if power
on input A is below threshold. Switch back to input A if
power on input A is above threshold.
Table 4-2: Operating Mode Switch Settings
4.3.2. Controlling the Local Fault Buzzer
This audible buzzer indicates poor module health and will be on during the absence of a valid optical input
signal on the Main Input, or if a frame power fault exists (i.e.: a blown fuse). DIP switch 3 controls whether
Local Fault buzzer is enabled or not.
DIP 3 DESCRIPTION
Off Local Fault Buzzer disabled
On Local Fault Buzzer enabled
Table 4-3: Local Fault Buzzer Enable Settings

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7707BPX-TR Optical Bypass Protection Switch
Page-12 Revision 1.2
5. JUMPERS
5.1. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS
The FRAME STATUS jumper J3 located near the back rear of the module 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 LED's 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.
5.2. SELECTING WHETHER MODULE WILL BE CONTROLLED FROM THE LOCAL
CONTROLS OR THROUGH THE VistaLINK
®
INTERFACE
The REM/CTL jumper J7 selects whether the module will be controlled from the local user controls or
through the VistaLINK
®
interface.
REM/CTL: When this jumper is installed in the CTL position, the card functions are controlled
through the local controls.
When this jumper is installed in the REM position, the card functions are controlled
through the VistaLINK
®
interface.
5.3. CONFIGURING THE MODULE FOR FIRMWARE UPGRADES
UPGRADE: The UPGRADE jumper J4 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 chapter in the front of the binder for more information.
To upgrade the firmware in the module unit pull it out of the frame. Move the
UPGRADE jumper into the UPGRADE position. Install the Upgrade cable provided
(located in the vinyl pouch in the front of this manual) onto the SERIAL header J13
at the card edge. Re-install the module into the frame. Run the upgrade as
described in the Upgrading Firmware chapter in the front of the binder. Once the
upgrade is completed, 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.

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7707BPX-TR Optical Bypass Protection Switch
Revision 1.2 Page-13
6. CIT INTERFACE MONITORING/CONTROL
The 7707BPX-TR implements an RS-232 interface for control and monitoring via a local PC or Craft
Interface Terminal (CIT). The in-band optical supervisory channel (OSC) extends access to functions of
the companion 7707BPX-TR module at the remote end of the link. Commands to control the module are
only active when the REM/CTL jumper is set to the REM position. The following control and monitoring
functions are supported:
•Access the interface help menu using the HELP command
•Display status information for the local module using the LSTAT command
•Display status information for the remote module using the RSTAT command
•Set switching thresholds for the local module using the LTHRESH commands
•Set switching thresholds for the remote module using the RTHRESH commands
•Set switching modes for the local module using the LMODE commands
•Set switching modes for the remote module using the RMODE commands
•Manually set the state of the local switch using the LSWITCH commands
•Manually set the state of the remote switch using the RSWITCH commands
•Place the local card into firmware upgrade mode using the UPGRADE command
6.1. CONNECTING THE CIT PORT
1. Connect the male end of a ‘straight thru’ serial cable to the CIT INTERFACE DB9 connector on the
rear panel. Connect the female end of the serial update cable to the PCs’ RS-232 communications
port. See Table 2-1 for the pinout of the CIT INTERFACE connector.
2. Start the CIT terminal program.
3. Configure the port settings of the terminal program as follows:
Baud 57600
Parity no
Data bits 8
Stop bits 2
Flow Control None
6.2. STATUS INFORMATION COMMANDS
The 7707BPX-TR will report status information of the local and remote modules, using the following
commands:
LSTAT <RETURN> Reports the following status information for the local module
RSTAT <RETURN> Reports the following status information for the remote module

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7707BPX-TR Optical Bypass Protection Switch
Page-14 Revision 1.2
****************************************************
* Status Of The Local Module *
****************************************************
Optical Power for Channel A is: -41 (+5 to –41)
Optical Power for Channel B is: -5 (+5 to –41)
Threshold for Channel A is: -20 (+5 to –40)
Threshold for Channel B is: -10 (+5 to –40)
State of GPI 1 is: InActive (or Active)
State of GPI 2 is: InActive (or Active)
Switchback Mode is: off (or on)
Auto Manual Mode is: auto (or manual)
Dual GPI mode is: off (or on)
Module Control Selected is: remote (or local)
Current Active Channel is: Channel B (or Channel A)

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Revision 1.2 Page-15
6.3. SWITCHING THRESHOLD CONTROL COMMANDS
The following commands are used to set the switching thresholds of the local and remote 7707BPX-TR
modules:
LTHRESH A xxxx <RETURN> Sets the switching threshold for channel A of the local module
LTHRESH B xxxx <RETURN> Sets the switching threshold for channel B of the local module
RTHRESH A xxxx <RETURN> Sets the switching threshold for channel A of the remote module
RTHRESH B xxxx <RETURN> Sets the switching threshold for channel B of the remote module
Where xxxx is the desired threshold value from –40 to +05, representing a dBm optical power level. The
LSTAT/RSTAT commands may be used to verify the new settings.
6.4. SWITCHING MODE CONTROL COMMANDS
The following commands are used to set the switching mode of the local and remote 7707BPX-TR
modules:
LMODE yyyy Z<RETURN> Sets the switching mode of the local module
RMODE yyyy Z<RETURN> Sets the switching mode of the remote module
Where yyyy is the text string SWITCHBACK, DUALGPI, or MANUAL representing the three DIP switches
used to set the switching modes (see section 4.3.1) and zis 0to turn off the mode and 1to turn on the
mode. The LSTAT/RSTAT commands may be used to verify the new settings.
6.5. MANUAL SWITCH CONTROL COMMANDS
The following commands are used to manually set the switch state of the local and remote 7707BPX-TR
modules:
LSWITCH 0 <RETURN> Sets the switch state to channel A on the local module
LSWITCH 1 <RETURN> Sets the switch state to channel B on the local module
RSWITCH 0 <RETURN> Sets the switch state to channel A on the remote module
RSWITCH 1 <RETURN> Sets the switch state to channel B on the remote module
These commands are only valid while in the MANUAL switching mode. The LSTAT/RSTAT commands may
be used to verify the new values.
6.6. SOFTWARE UPGRADE CONTROL COMMAND
The UPGRADE command may be used to enter the upgrade mode described in the Firmware Upgrade
section of this manual.
6.7. INTERFACE HELP MENU COMMAND
The HELP command may be used to return a brief description of the interface commands.

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Page-16 Revision 1.2
7. VistaLINK
®
REMOTE MONITORING/CONTROL
7.1. WHAT IS VistaLINK
®
?
VistaLINK
®
is Evertz’s remote monitoring and configuration platform, which operates over an Ethernet
network using Simple Network Management Protocol (SNMP). SNMP is a standard computer network
protocol that enables different devices sharing the same network to communicate with each other.
VistaLINK
®
provides centralized alarm management, which monitors, reports, and logs all incoming alarm
events and dispatches alerts to all the VLPro Clients connected to the server. Card configuration through
VistaLINK
®
PRO can be performed on an individual or multi-card basis using simple copy and paste
routines, which reduces the time to configure each module separately. Finally, VistaLINK
®
enables the
user to configure devices in the network from a central station and receive feedback that the configuration
has been carried out.
There are 3 components of SNMP:
1. An SNMP manager, also known as a Network Management System (NMS), is a computer running
special software that communicates with the devices in the network. Evertz VistaLINK
®
Pro Manager
graphical user interface (GUI), third party or custom manager software may be used to monitor and
control Evertz VistaLINK
®
enabled fiber optic products.
2. Managed devices (such as 7707BPX-TR cards), each with a unique address (OID), communicate with
the NMS through an SNMP Agent. Evertz VistaLINK
®
enabled 7700 series modules reside in the 3RU
7700FR-C MultiFrame and communicate with the manager via the 7700FC VistaLINK
®
frame controller
module, which serves as the Agent.
3. A virtual database, known as the Management Information Base (MIB), lists all the variables being
monitored, which both the Manager and Agent understand. Please contact Evertz for further
information about obtaining a copy of the MIB for interfacing to a third party Manager/NMS.
For more information on connecting and configuring the VistaLINK
®
network, see the 7700FC Frame
Controller chapter.
7.2. VistaLINK
®
MONITORED PARAMETERS
The following parameters can be remotely monitored through the VistaLINK
®
interface.
Parameter Description
Optical Power A A range of values describing optical power at the Receive Input A.
Optical Power B A range of values describing optical power at the Receive Input B.
Input Status A Receive Input A is the active input.
Input Status B Receive Input B is the active input.
GPI Input 1 State Indicates the state of General Purpose Input 1.
GPI Input 2 State Indicates the state of General Purpose Input 2.
GPO Output State Indicates the state of the General Purpose Relay Output.
Master Jumper Indicates the state of the Master Jumper.
Table 7-1: VistaLINK
®
Monitored Parameters