Albalá Ingenieros TTD2000C01, Manual

Page 1: ...DISTRIBUTOR WITH 1 INPUT TO 4 OUTPUTS FOR TTL OR 10 MHz 50 OR 75 OHMS IMPEDANCE REFERENCE SIGNAL Version 1 0 Albalá Ingenieros S A Medea 4 28037 Madrid Spain 07 June 2017 Albalá Ingenieros S A All rights reserved ...

Page 2: ...TTD2000C01 ...

Page 3: ...ICATIONS 9 3 INSTALLATION 11 3 1 Initial inspection 11 3 2 Safety instructions 11 3 3 Environmental considerations 12 3 4 Installing the module in the mounting frame 12 3 5 Interconnection 13 4 OPERATION 15 4 1 Front panel description 15 4 2 Functional description 16 4 3 Module remote control and supervision 18 4 3 1 Details of the TTD2000C01 registers 19 5 GLOSSARY 21 6 REGULATIONS 23 7 VERSIONS ...

Page 4: ...TTD2000C01 ...

Page 5: ...ng of digital signals such as 1 PPS or Word clock When operating in a mounting frame that contains a GPS2000C01 the TTD2000C01 can be used to increase the number of 1 PPS or 10 MHz outputs using the redundant signals that the GPS2000C01 delivers to the bus of the mounting frame In such cases each TTD2000C01 installed in the frame provides five outputs that can be all 1 PPS all 10 MHz or two of one...

Page 6: ... that contains a GPS2000C01 the TTD2000C01 can be used to increase the number of 1 PPS or 10 MHz outputs using the redundant signals that the GPS2000C01 delivers to the bus of the mounting frame In such cases each TTD2000C01 installed in the frame provides five outputs that can be all 1 PPS all 10 MHz or two of one type and three of the other as desired Apt for distribution of 10 MHz 1 PPS and Wor...

Page 7: ...Albalá Ingenieros Manual TTD2000C01 1 3 Block diagram 7 ...

Page 8: ...Albalá Ingenieros Manual TTD2000C01 TTD2000C01 8 ...

Page 9: ...ce 50 Ω 3 Number of inputs 1 per section 2 sections Threshold levels VIH min 2 0 V VIL max 0 8 V Allowed voltage range 0 3 5 V TTL signal output Connector BNC Impedance 50 Ω 2 Return loss 30 dB up to 10 MHz Number of outputs 4 per section Voltage levels with loaded output VOL max 0 5 V VOH min 3 0 V Rise and fall time 20 ns Skew between outputs 600 ps Input to output delay 12 ns Input to output de...

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Page 11: ...arth 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 TL2000 terminal line can be hot plugged or unplugged without suffering a...

Page 12: ... should be followed in order to install a TTD2000C01 module in the mounting frame 1 Remove the blank panel covering the front of the empty slot chosen for installing the TTD2000C01 in the mounting frame 2 Insert the TTD2000C01 module into the front of the mounting frame The edges of the card slide into two plastic guides inside the mounting frame 3 Secure the module to the mounting frame using the...

Page 13: ...ing the number of 1 PPS or 10 MHz outputs from a GPS2000C01 module the usage of the outputs is selectable In this mode the device has two sections one formed by outputs OUT1 and OUT2 the other formed by outputs OUT3 OUT4 and OUT5 The type of signal sent from each section is user configurable Signal connections to the module should be made with 50 or 75 Ω coaxial cabling depending upon the requirem...

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Page 15: ...on the front panel includes the following indicators and controls IN The LED lights up only when the TTD2000C01 acts as a distributor and indicates the type of signal detected at the input 1PPS Blue blinking Indicates that a 1 PPS signal has been detected 10MHz Cyan Indicates that a signal has been detected at the input but the levels are not TTL compatible Normally this is a 10 MHz reference sign...

Page 16: ...ch the module is installed must also have a TL2000 family communications controller installed When the module acts as an autonomous distributor the input signal comes in using the OUT 5 IN connector and the other four connectors OUT1 to OUT4 distribute this signal In this mode the IN LED indicates the type of signal detected at the input and the OUT 1 2 and OUT 3 4 5 LEDs remain off In autonomous ...

Page 17: ...Albalá Ingenieros Manual TTD2000C01 The impedance of the input and the outputs of the module can be set to 50 or 75 Ω in order to adapt to the type of signal being distributed 17 ...

Page 18: ...module an optional TL2000 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 and the internal bus of the mounting frame The following illustration shows the most common control situations from a computer or control panel via Ethernet Certain communications control modu...

Page 19: ... Front ONEPPS_12 0x00 0x02 Y Y Allows selecting the signal delivered to outputs 1 2 0 10 MHz line 1 TTL line ONEPPS_34 0x00 0x04 Y Y Allows selecting the signal delivered to outputs 3 4 5 0 10 MHz line 1 TTL line IMPEDANCE 0x00 0x08 Y N Allows selecting the input output impedance 0 50 ohms 1 75 ohms FORCE_TTL_OUT 0x00 0x10 Y N Allows forcing TTL levels at the outputs 0 Disabled 1 Enabled FR_FAIL_M...

Page 20: ... 1 PPS signal has been detedted in the rear bus 0 Inactive 1 Active RE_48KHZ_DET 0x02 0x20 N N Indicates 48 kHz signal has been detedted in the bus 0 Inactive 1 Active RE_OTHER_DET 0x02 0x40 N N Indicates other frequency TTL signal has been detedted in the bus 0 Inactive 1 Active RE_10MHZ_DET 0x02 0x80 N N Indicates 10 MHz signal has been detedted in the rear bus 0 Inactive 1 Active 20 ...

Page 21: ...Albalá Ingenieros Manual TTD2000C01 5 GLOSSARY 1 PPS One Pulse Per Second Synchronization signal that consists of one short pulse that is repeated every second Typically uses TTL levels 21 ...

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Page 23: ...Albalá Ingenieros Manual TTD2000C01 6 REGULATIONS 23 ...

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Page 25: ...Albalá Ingenieros Manual TTD2000C01 7 VERSIONS Ver Date Description 0 0 02 03 2017 Preliminary Version 1 0 07 06 2017 First version ...

Page 26: ...Albalá Ingenieros S A Medea 4 28037 Madrid Spain 34 913274453 www albalaing com info albalaing com ...