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Albalá Ingenieros | Manual

ASW3000C01

The lines indicated as GPIO n the silkscreening are assigned as follows:

GPIO5: Error input for the reserve channel.

GPIO4: Error input for the main channel.

GPIO3: Alarm output for the reserve channel.

GPIO2: Alarm output for the main channel.

GPIO1: Indicates selection of:

0V main channel.

+5V reserve channel.

GND: Ground for the module.

During normal operating conditions the alarm outputs GPIO2 and GPIO3 are set to
logic low (transistor on) in order to signal an alarm condition and a no-alarm
condition via a logic high (open collector). This signaling polarity can be inverted using
the control software.

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Summary of Contents for ASW3000C01

Page 1: ...00C01 DVB ASI AUTOMATIC CHANGE OVER SWITCH WITH ADVANCED TS FAILURE DETECTION FUNCTIONS Version 1 0 Albalá Ingenieros S A Medea 4 28037 Madrid Spain 17 November 2014 Albalá Ingenieros S A All rights reserved ...

Page 2: ...ASW3000C01 ...

Page 3: ...5 3 6 2 GPIO connections 15 4 OPERATION 17 4 1 Front panel description 17 4 2 Configuration from the front panel 18 4 3 Functional description 18 4 3 1 The error conditions 19 4 3 1 1 GPI input 19 4 3 1 2 Absence of input signal 19 4 3 1 3 Loss of synchronization of the transport stream 19 4 3 1 4 Error in the sync byte of the packets 20 4 3 1 5 PAT errors 20 4 3 1 6 Continuity error in the PAT pa...

Page 4: ...Output mode selection 22 4 4 6 Signal at the output when errors are present at the inputs 23 4 4 7 Selection of DVB T no DVB T mode 23 4 5 Module remote control and supervision 24 4 5 1 Details of the ASW3000C01 registers 25 5 GLOSSARY 29 6 REGULATIONS 31 7 VERSIONS 33 ...

Page 5: ...ndition can be selected or not for consideration for switching The conditions that can be detected are Absence of input signal Loss of the transport stream TS packets Errors in the packet headers Absence of or errors in the PAT Program Association Table packets during a programmable interval lasting from 40 ms to 10 seconds Usable load of the TS above or below user established thresholds A percent...

Page 6: ... beep that can be masked Both the signal selected and any error conditions detected at either input are indicated via open collector GPOs and via the module s remote control It is possible to monitor the ASW3000C01 status remotely using a communications controller module installed in the same mounting frame In addition certain controller modules provide SNMP management and the ability to record ev...

Page 7: ...disturbance Seamless switching is available with DVB T signals when delay between inputs is less than four TS packets Provides automatic cable equalizers at the inputs Provides three switching modes automatic semiautomatic and manual Front panel indication of input selected and operating mode Front panel indication of failure in the main or reserve inputs Acoustic and visual indicators warn agains...

Page 8: ...Albalá Ingenieros Manual ASW3000C01 1 3 Block diagram 8 ...

Page 9: ...z Input to output bypass insertion loss 0 1 dB up to 270 MHz Number of outputs 4 Amplitude 800 mVpp 10 Rise and fall time 20 80 1 ns typ DVB ASI signal Signal format According to EN 50083 9 standard GPI input Connector Plug in terminal 3 81 mm pitch Type 100 kΩ pull up to 5 V Number of inputs 2 Activation Closing contact to ground Allowed voltage range 0 24 V GPO output Connector Plug in terminal ...

Page 10: ...Albalá Ingenieros Manual ASW3000C01 ASW3000C01 10 ...

Page 11: ...ns This equipment must be connected to a mains outlet with a protective earth connection Never use extension cords that do not have protective earthing connection The lack of an effective electrical connection between the ground pin in the mains input connector of the equipment and the protective earth of the electrical power distribution can cause serious harm All modules of the Albalá Ingenieros...

Page 12: ...l the ASW3000C01 module with the rear board in the mounting frame are 1 Disconnect all power cords from the power supplies of the mounting frame 2 Install the ASW3000P02 rear board ensuring that its 12 pin connectors are properly aligned with the mounting frame s mating connectors Check that the orientation of the board is correct by looking at the placement of the text printed on it according to ...

Page 13: ...Albalá Ingenieros Manual ASW3000C01 Details for installation of the module in 3 RU mounting frames Details for installation of the module in 1 RU mounting frames 13 ...

Page 14: ...s OUT1p OUT2 OUT3 and OUT4 It also provides five GPIO inputs outputs GPIO1 to GPIO5 The connector labeled OUT1p is protected by a bypass relay such that during power supply failures or extraction of the module the MAIN IN signal maintains continuity The rear interconnection board is not designed to withstand mechanical stress The wiring must be fastened properly to the frame where the mounting fra...

Page 15: ... equalizers in the ASW3000C01 Cables carrying signal between the module and the devices should use single piece construction avoiding spliced sections with double BNC female or barrel connectors If it is necessary to split the cable into two sections the same type of wire should be used in both sections The use of analog video coaxial cables RG 59 type or similar is not recommended for digital vid...

Page 16: ... reserve channel GPIO2 Alarm output for the main channel GPIO1 Indicates selection of 0 V main channel 5V reserve channel GND Ground for the module During normal operating conditions the alarm outputs GPIO2 and GPIO3 are set to logic low transistor on in order to signal an alarm condition and a no alarm condition via a logic high open collector This signaling polarity can be inverted using the con...

Page 17: ...ont panel indicators of the ASW3000C01 module and their remote control and monitoring ability 4 1 Front panel description The appearance of the front panel and the elements it contains are shown in the following illustration Front panel of the ASW3000C01 The panel contains the following elements 17 ...

Page 18: ...n a change to the signal source selected has occurred This also generates an audible beep which can be masked RESET Pushbutton A quick press of this button stops the blinking of the LED and the audible beep In Semiautomatic mode a sustained press of this button rearms the module 4 2 Configuration from the front panel Selection of the operating mode is performed via sustained presses of the SELECT ...

Page 19: ...ccurs For more detailed remote control and supervision of the module the control software can be used as long as a communications controller module is installed in the same mounting frame as the ASW3000C01 4 3 1 The error conditions The following is a detailed description of the error conditions that can be detected by the ASW3000C01 4 3 1 1 GPI input The activation of the corresponding GPI indica...

Page 20: ...ckets with PID equal to 0x000 PAT and with their table_id equal to 0x00 are detected within a programmable interval from 40 ms to 10 seconds Packets are detected with a PID equal to 0x000 PAT and a table_id other than 0x00 Packets are detected with a PID equal to 0x000 PAT and a scrambling_control_field other than 00 The CRC of the PAT is incorrect versions 1 7 and above These conditions correspon...

Page 21: ...ed if the ratio is above the maximum threshold or below the minimum The existence of null packets is required by some DVB systems The factory programmed value will not activate this error condition the minimum value is 0 null packets and the maximum is 100 4 4 Operating modes The ASW3000C01 has three operating modes Automatic Semiautomatic and manual The behavior of each mode is described as follo...

Page 22: ...ted in the highest priority input however the system does not switch back to the highest priority input after the error clears but instead requires the module to be rearmed This is done by pressing and holding he RESET button for longer than one second A press of this button lasting less than one second deactivates the LED and acoustic beep indicators but does not switch the input selected 4 4 3 M...

Page 23: ...e selected input can be passed through If data pass through is selected but no input signal is present then stuffing bytes are sent to the output 4 4 7 Selection of DVB T no DVB T mode For software versions v1 5 and above the ASW3000C01 switches at the packet level and if the signal type is DVB T the switching can be seamless In order to switch seamlessly the system must wait for two MIP packets f...

Page 24: ...ion The ASW3000C01 can optionally be remotely controlled supervised In order to perform remote configuration and supervision of the module an optional TL3000 family remote communications controller must be installed in the mounting frame The main function of the communications control module is to interface between a 10 100 Ethernet port an EIA RS232 or an EIA RS485 serial port and the internal bu...

Page 25: ...irmware are listed below VERSION 1 X CONTROL Name add ext msk snmp trap Description MODE 0x00 0x03 Y Y Allows selecting the switching mode 0 Full auto 1 Half auto 2 Manual BUZZER 0x00 0x04 Y N Allows buzzer operation 0 Disabled 1 Enabled INPUT 0x01 0x01 Y Y Selected input 0 Main 1 Reserve GPI_MASK 0x02 0x01 Y N Allows masking fail of GPIs 0 Disabled 1 Enabled PRESENCE_MASK 0x02 0x02 Y N Allows mas...

Page 26: ...Selects DVB T mode Seamless operation is only possible in DVB T mode 254 No 255 Yes STATUS Name add ext msk snmp trap Description MAIN_PCK_BYTES 0x00 0x01 Y N Number of bytes in main input packets 0 204 1 188 MAIN_GLOBAL_FAIL 0x00 0x80 Y Y Main input global any kind fail status 0 OK 1 Fail RES_PCK_BYTES 0x01 0x01 Y N Number of bytes in reserve input packets 0 204 1 188 RES_GLOBAL_FAIL 0x01 0x80 Y ...

Page 27: ...3 0x40 Y Y Main bitrate status 0 OK 1 Fail RES_NULL_P_FAIL 0x03 0x80 Y Y Main null packet rate status 0 OK 1 Fail MAIN_BITRATE 0x04 0xFFFF Y N Main bitrate 2 x kbit s RES_BITRATE 0x06 0xFFFF Y N Reserve bitrate 2 x kbit s MAIN_PCK_NULL 0x08 0xFF Y N Packet null ratio main x RES_PCK_NULL 0x09 0xFF Y N Packet null ratio reserve x 27 ...

Page 28: ...Albalá Ingenieros Manual ASW3000C01 ASW3000C01 28 ...

Page 29: ...e open or closed status of an external circuit The information is received from a device at the other end of the line typically employing a GPO interface GPIO General Purpose Input Output General purpose signaling interface that can operate as an input GPI or output GPO GPO General Purpose Output This is a signaling and control interface that transmits information via closure of a contact A GPI in...

Page 30: ...Albalá Ingenieros Manual ASW3000C01 ASW3000C01 30 ...

Page 31: ...1 6 REGULATIONS EN 50083 9 1998 Interfaces for CATV SMATV headends and similar professional equipment for DVB MPEG 2 transport streams ETSI TR 101 290 V1 2 1 2001 Digital Video Broadcasting DVB Measurement guidelines for DVB systems 31 ...

Page 32: ...Albalá Ingenieros Manual ASW3000C01 ASW3000C01 32 ...

Page 33: ...Albalá Ingenieros Manual ASW3000C01 7 VERSIONS Ver Date Description 0 0 13 06 2013 Preliminary Version 1 0 17 11 2014 First version ...

Page 34: ...Albalá Ingenieros S A Medea 4 28037 Madrid Spain 34 913274453 www albalaing com info albalaing com ...

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