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7700 MultiFrame Manual

 

7707IT Multi-Channel Intercom Fiber Transceiver 

 

Revision 1.7 

Page - 19 

 

CTRL 

 

To change the programmed profile, select the 

CTRL

  menu item in menu 

level 1. The 7707IT allows independent configuration of each channel, or 
common configuration of all channels (See section 4.2.11 for information on 
the 

GLBL

 

menu option). Use the toggle switch to choose the channel to 

which the profile will be applied and press the pushbutton to apply the 
displayed selection. 
 

CH01 to CH08:

 

Range of channels for the 7707IT-8  

CH01 to CH03:

 

Range of channels for the 7707IT-3 

 
Use the toggle switch to select the 

PROF

  menu item and press the 

pushbutton. Use the toggle switch to select the desired profile as per the list 
below.   
 

TXMX:

 

RTS-Telex Matrix  

(4-Wire Audio and RS-485 

serial data) 

CCMX:

 

ClearCom Matrix  

(4-Wire Audio and RS-422 

serial data) 

TXPL:

 

RTS-Telex Party-line  (1-Wire Audio and frequency 
call signaling)  

CCPL:

 

ClearCom Party-line   (1-Wire Audio and voltage call 
signaling) 

 
The factory default profile is the 

TXMX

 profile.   

CH01 to CH03 or 
CH08 

PROF 

TXMX 
CCMX 
TXPL 
CCPL 
 

 
Selecting one of the programmed profiles sets all audio gain, null, and detection levels to the factory 
defaults specified in the following sections.  Press the pushbutton to apply the displayed selection and 
return to menu level 3.  You can modify these settings from the factory default by using the toggle switch 
to select the 

NULL, DET, GAIN, TERM or BIAS

 menu items on menu level 3, or select the 

BACK

 menu 

item to return to menu level 2. 
 

4.2.5.  Setting the Party-Line Audio Null Level (Future) 

This section applies only to installations using party-line type intercom systems.  The 7707IT has a self-
calibration capability for automatic null adjustment.  This user-friendly feature is unique in the industry. 
Party-line null adjustment is accomplished using the card-edge interface. 
 
Party-line intercom systems use bi-directional signals over a single wire with transmit and receive signals 
superimposed.  This means that each intercom station will receive its  own transmit signal.  Party-line 
nulling cancels the transmitted audio output signal from the received audio input signal.  Without proper 
null adjustment, the user would hear their own voice as an echo, making it difficult for them to distinguish 
from other input audio signals.  The combined impedances of all connected intercom devices in a party-
line system create different signal characteristics for each intercom system. Therefore, it may be desirable 
to calibrate the party-line nulling each time the system is changed. 
 

Содержание 7707IT

Страница 1: ...9 2 3 3 Labeling 9 2 3 4 Handling and Connecting Fibers 10 3 SPECIFICATIONS 11 3 1 ANALOG AUDIO 11 3 1 1 Balanced Matrix Type Audio 11 3 1 2 Unbalanced Party Line Type Audio 11 3 2 SERIAL DATA 12 3 3 OPTICAL INPUT OUTPUT 12 3 4 GENERAL PURPOSE OUPUTS GPO 12 3 5 GENERAL PURPOSE INPUTS GPI 13 3 6 ELECTRICAL 13 3 7 PHYSICAL 13 4 CARD EDGE MONITORING AND CONTROL 14 4 1 STATUS INDICATOR LEDS 14 4 2 CAR...

Страница 2: ... BE MONITORED BY THE GLOBAL FRAME STATUS 28 6 3 CONFIGURING THE MODULE FOR FIRMWARE UPGRADES 28 7 VISTALINK REMOTE MONITORING CONTROL 29 7 1 WHAT IS VISTALINK 29 7 2 VISTALINK MONITORED PARAMETERS 29 7 3 VISTALINK CONTROLLED PARAMETERS 30 7 4 VISTALINK TRAPS 30 7 5 VISTALINK CONFIGURATION 30 7 5 1 Control Settings 30 7 5 1 1 Profile Settings 31 7 5 1 2 Optical Control 32 7 5 1 3 Audio Detection Th...

Страница 3: ...neral Purpose Inputs and Outputs 27 Figure 7 1 Control Tab 31 Figure 7 2 Data Control Tab 33 Figure 7 3 Monitor Tab 34 Figure 7 4 Faults Tab 35 Tables Figure 1 1 7707IT Block Diagram 2 Figure 2 1 7707IT Rear Panel 3 Figure 2 2 Terminal Block Wiring 5 Figure 2 3 7707IT 3 Terminal Block Signal Connections 6 Figure 2 4 7707IT 8 Terminal Block Signal Connections 7 Figure 2 5 Reproduction of Laser Cert...

Страница 4: ...ever 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 ...

Страница 5: ...ING Never look directly into an optical fiber Non reversible damage to the eye can occur in a matter of milliseconds Do not hook up the 7707IT DWDM cards directly with a short fiber optic cable The 7707IT DWDM cards produce 7dBm of power which will damage the receiver if connected directly ...

Страница 6: ...7700 MultiFrame Manual 7707IT Multi Channel Intercom Fiber Transceiver Revision 1 7 This page left intentionally blank ...

Страница 7: ...ical output of the 7707IT is available in 1310nm 1550nm CWDM DWDM wavelengths Features Configurable interface to RTS Telex Matrix 4 Wire Audio RS 485 Data GPIO ClearCom Matrix 4 Wire Audio RS 422 Data GPIO RTS Telex Party Line 1 Wire Audio GPIO ClearCom Party line 1 Wire Audio GPIO Multiple independent channels can simultaneously accommodate different intercom types User friendly selection of inte...

Страница 8: ...Tyy 8 F2 28dBm Different CWDM wavelengths on Tx Rx with 8 channel CWDM Mux Demux Single Mode 1 DWDM 30dB 120km 7707ITDxxx 3 F2 7707ITDxxx 8 F2 7dBm 7707ITDyyy 3 F2 7707ITDyyy 8 F2 28dBm Different DWDM wavelengths on Tx Rx with 8 channel DWDM Mux Demux With 20dB return loss on fiber Interface Tx Power Rx Sensitivity are nominal values 1dBm Assume 8 Ch CWDM Mux Demux loss of 3 5dB Fiber Loss 0 35 0 ...

Страница 9: ...r For information on mounting the rear plate and inserting the module into the frame see section 3 of the 7700FR chapter The following diagram shows four rear plate options Figure 2 1 7707IT Rear Panel 2 1 OPTICAL CONNECTIONS The 7707IT modules are designed to work with single mode or multi mode optical fiber depending on the version ordered The CARD ID jumper must be configured in order to establ...

Страница 10: ... PC or FC PC female connector with the optical input to the module This connector should be connected to the FIBER OUT connector of a matching dual fiber 7707IT F2 module at the destination end with a suitable fiber optic cable The dual fiber 7707IT F2 versions receive on wavelengths in the 1270 to 1610nm range accommodating standard CWDM or DWDM transmission schemes FIBER OUT There is one SC PC s...

Страница 11: ...ositions correspond to detailed pin outs as shown in Figure 2 4 Fasten screws to the rear plate at the top and bottom once connected INTERCOM AUDIO DATA GPIO These multi pin removable terminal blocks have the connections for bi directional analog intercom audio bi directional serial data and general purpose input outputs The functions of some of the pins change with configuration Please refer to t...

Страница 12: ...7700 MultiFrame Manual 7707IT Multi Channel Intercom Fiber Transceiver Page 6 Revision 1 7 Figure 2 3 7707IT 3 Terminal Block Signal Connections ...

Страница 13: ...7700 MultiFrame Manual 7707IT Multi Channel Intercom Fiber Transceiver Revision 1 7 Page 7 Figure 2 4 7707IT 8 Terminal Block Signal Connections ...

Страница 14: ...dio output Usable only while the associated channel is configured for use with matrix type intercom systems This pin is DC coupled and should not be connected to a party line type intercom system 2 2 2 Data Connections RS485 RS422 IN Positive RS 422 input or RS 485 input output When the associated channel is configured for use with RTS Telex matrix type intercom systems this pin becomes an RS 485 ...

Страница 15: ...g Certification and Identification labels are combined into one label as there is not enough room on the product to place the label it is reproduced here in the manuals There is no date of manufacture on this label as it can be traced by the bar code label placed on the Printed circuit board of each Evertz plug in module The Model number is one of 7707IT13 3 7707IT13M 3 W 7707IT15 3 W 7707IT13 3 F...

Страница 16: ... 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 The Evertz fiber optic modules come with cable lockout devices to prevent the user from damaging the fiber by install...

Страница 17: ...D 1KHz 0 01 Crosstalk 80dB Controllable Gain 10dB to 10dB 3 1 2 Unbalanced Party Line Type Audio Number of Signals 7707IT 8 8 Inputs 8 Outputs 7707IT 3 3 Inputs 3 Outputs Type Analog Audio Full duplex Unbalanced Connector Type Multi pin Removable Terminal Block Signal Coupling AC coupled accommodates 30V wet inputs Bridging Impedance 10KΩ Signal Resolution 24 Bit Sampling Rate 52 7KHz Sidetone Nul...

Страница 18: ...ual fiber F2 versions 0 dBm Input Optical Sensitivity Single fiber versions 24 dBm Single fiber W versions 26 dBm Dual fiber F2 versions 28 dBm Fiber Size and Type Single Fiber versions 9 µm core single mode Dual Fiber F2 versions 9 µm core single mode on TX 62 5 µm core multi mode on RX Output Wavelengths Standard 1310nm 1550nm nominal CWDM 1270nm to 1610nm ITU T G 694 2 compliant DWDM 1530nm to ...

Страница 19: ...low Input Voltage Safe Voltage Range 20V to 10V Off Condition min 3 5V On Condition max 2 5V active low Input Current min 1mA Input Current max 10mA internally limited 3 6 ELECTRICAL Voltage 12V DC Power max 24 Watts EMI RFI Complies with FCC regulations for class A devices Complies with EU EMC directive 3 7 PHYSICAL 7700 Frame Mounting Number of Slots 7707IT 8 2 7707IT 3 1 7701 Frame Mounting Num...

Страница 20: ...ication to be active A link with a companion 7707IT has not been achieved operation of the output laser is erroneous or if a card power fault exists i e a blown fuse If a link is not maintained between two companion 7707IT cards refer to section 6 1 and verify the selection of the CARD ID jumper The LOCAL FAULT indication can also be reported to the frame by setting the FRAME STATUS jumper MODULE ...

Страница 21: ... the display menu structure Pressing the pushbutton advances the display to the next menu level The toggle switch may then be used to move up or down through selections of that menu level Select BACK to return to the previous menu level 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 d...

Страница 22: ...x CCMX ClearCom Matrix TXPL RTS Telex Party Line CCPL ClearCom Party line NULL Party line Null DONE or FAIL For TXPL or CCPL Profiles Toggle DET Detection Level 30 to 10 dBu Switch CH01 For TXMX or CCMX Profiles thru 40 to 0 dBu CH03 or CH08 For TXPL or CCPL Profiles Channel Control GAIN Audio Gain 10 to 10 dBu For TXMX or CCMX Profiles 5 to 5 dBu For TXPL or CCPL Profiles TERM Termination ON or O...

Страница 23: ...ard edge select the PWR indication in menu level 1 The following list describes all possible indications for this menu selection 40 to 04 Optical input power in dBm units LOW Optical input powers below 40dBm OVR Optical input powers exceeding 4dBm 40 to 04 dBm LOW OVR 4 2 3 Selecting the Signal Status Indication Mode The eight card edge LEDs indicate the signal status of the eight respective inter...

Страница 24: ...tercom audio types are provided in section 3 1 of this manual These specifications are designed to accommodate systems from multiple manufacturers Input output functions of some audio pins change with configuration Please refer to the pin out diagrams as shown in Figure 2 3 and Figure 2 4 Never apply a powered or wet party line signal to a terminal that is not designated as a party line connection...

Страница 25: ... defaults specified in the following sections Press the pushbutton to apply the displayed selection and return to menu level 3 You can modify these settings from the factory default by using the toggle switch to select the NULL DET GAIN TERM or BIAS menu items on menu level 3 or select the BACK menu item to return to menu level 2 4 2 5 Setting the Party Line Audio Null Level Future This section ap...

Страница 26: ...figuration of each channel Use the toggle switch to choose the channel to which the calibration will be applied and press the pushbutton to apply the displayed selection CH01 to CH08 Range of Independent channels for the 7707IT 8 CH01 to CH03 Range of Independent channels for the 7707IT 3 Use the toggle switch to then select the Null menu item and press the pushbutton to initiate the self calibrat...

Страница 27: ... to apply the displayed selection CH01 to CH08 Range of channels for the 7707IT 8 CH01 to CH03 Range of channels for the 7707IT 3 Use the toggle switch to select the DET menu item and press the pushbutton The toggle switch may then be used to change the threshold value Use the toggle switch to select the desired value then press the pushbutton to apply the displayed selection and return to menu le...

Страница 28: ...el for which the audio gain will be adjusted and press the pushbutton to apply the displayed selection CH01 to CH08 Range of channels for the 7707IT 8 CH01 to CH03 Range of channels for the 7707IT 3 Use the toggle switch to select the DET menu item and press the pushbutton The toggle switch may then be used to change the audio gain value Toggle to the desired value then press the pushbutton to app...

Страница 29: ...The 110Ω is selected as active OFF The 110Ω is selected as inactive and the input is high impedance The factory default configuration turns the termination OFF Changing the interface profile will restore the factory default termination state for the respective channel s CH01 to CH03 or CH08 TERM ON OFF 4 2 9 Selecting the Serial Data Failsafe Bias To simplify installation the 7707IT provides a sel...

Страница 30: ...red state then press the pushbutton to apply the displayed selection and return to menu level 3 You can select other items on menu level 3 or select the BACK menu item to return to menu level 2 ON The failsafe bias is selected as active OFF The failsafe bias is selected as inactive The factory default configuration turns the failsafe bias OFF Changing the interface profile will restore the factory...

Страница 31: ... press the pushbutton The toggle switch may then be used to select the data rate Use the toggle switch to select the desired rate then press the pushbutton to apply the displayed selection and return to menu level 3 You can select other items on menu level 3 or select the BACK menu item to return to menu level 2 1K2 1 2 kbps 2K4 1 4 kbps 4K8 4 8 kbps 9K6 9 6 kbps 19K2 19 2 kbps 38K4 38 4 kbps 57K6...

Страница 32: ...es GLBL Global configuration Applies profile to all Channels Use the toggle switch to select the PROF menu item and press the pushbutton Use the toggle switch to select the desired profile as per the list below TXMX RTS Telex Matrix 4 Wire Audio and RS 485 serial data CCMX ClearCom Matrix 4 Wire Audio and RS 422 serial data TXPL RTS Telex Party line 1 Wire Audio and frequency call signaling CCPL C...

Страница 33: ... The GPI input stage uses opto isolators for isolation In a typical application providing a contact closure or transistor connection to ground would activate the GPI inputs The GPO output stage uses dry contact relay closures GPO COMMON acts as a common reference connection for both contact closures and accommodates closure to ground or some other reference signal level Current Limiting 10mA GPI 1...

Страница 34: ...ators 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 6 3 CONFIGURING THE MODULE FOR FIRMWARE UPGRADES RUN UPGRADE The RUN UPGRADE jumper is used when firmware upgrades are being done to the module For normal operation it sh...

Страница 35: ...ustom manager software may be used to monitor and control Evertz VistaLINK enabled fiber optic products 2 Managed devices such as 7707IT 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 a...

Страница 36: ...7 4 VISTALINK TRAPS The following traps will be reported through the VistaLINK interface Trap Description Laser Fault Indicates the laser has stopped working Optical Link Loss Indicates optical level is below operational sensitivity Optical Power Alarm Threshold Indicates optical power is below Optical Power Alarm setting Table 7 3 VistaLINK Traps 7 5 VISTALINK CONFIGURATION 7 5 1 Control Settings...

Страница 37: ...plus GPIO auxiliary signals ClearCom Matrix 4 Wire Audio and RS 422 plus GPIO auxiliary signals RTS Telex Party line 1 Wire Audio plus RS 422 and GPIO auxiliary signals ClearCom Party line 1 Wire Audio plus RS 422 and GPIO auxiliary signals Each of these industry standard intercom interface types requires different intercom audio levels and call signaling types The 7707IT provides a factory defaul...

Страница 38: ...ses a DC voltage component superimposed upon the audio signal The 7707IT accommodates either of these through selection of the associated profiles Therefore four types of call signaling are present in the industry two types for matrix and two types for party line The 7707IT accommodates all of these via selection of an interface profile This provides a user friendly means of configuring the 7707IT...

Страница 39: ...mination is shared by all connected intercom devices and usually resides within the power source of the system The selected gain value describes voltage gain and is accurate for a 200Ω termination Other termination values will yield a different gain as per the current resistance product of the signal 7 5 2 Data Control The Data Control settings as illustrated in Figure 7 2 allow the user to enable...

Страница 40: ...e failsafe bias circuit of the 7707IT will function properly over the specified input common mode range For the sake of brevity only Data Fail Safe Bias 1 will be discussed in the manual Data Fail Safe Bias 1 When set to Active the failsafe bias is on When set to Not active the failsafe bias is off 7 5 3 Monitor The Monitor tab as illustrated in Figure 7 3 indicates the signal status of input audi...

Страница 41: ...als as per configured detection threshold 7 5 3 5 Faults The Faults control as illustrated in Figure 7 4 allows the user to enable or disable traps and view trap status To enable a particular trap simply click the box located beside each trap so that a check mark appears When a check mark is present the trap is enabled When a check mark is not present the trap is disabled The Trap Status section d...

Страница 42: ...7700 MultiFrame Manual 7707IT Multi Channel Intercom Fiber Transceiver Page 36 Revision 1 7 This page left intentionally blank ...

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