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S2 Sequencer Operating Instructions

1. ANTENNA SYSTEMS INC EEZ I R C EET y 4 eee Ba 2 K A t nE E E i EP G an aa M2 N a ont aD 7 Ral se T n A A al l F EZ a nt Te TR EA L T Y OOG SPECIFICATIONS VOBERNUONMB ER E T E R E tt EME SEQUENCER S52 POV R RE OORE ME N E E EEE 86 264VAC 1AMP HOT SWITCH SECURITY E DPDT Relay Latching ENGEOSURE SIZE rc err er ers W 6 25 H 2 25 D 8 COLOR E Black Anodized RELAY CONTROL OUTPUT 4 RX Selectable 4 TX Selectable No Jumper Open Circuit No State A to B Jumper Ground On TX B to C Jumper 13VDC On TX SEQUENCER DEEANN aa E pene With Jumper 80 Milliseconds Without Jumper 120 Milliseconds CONTRO S etre rete teen aa r a aS Power Switch Preamp Switch Polarity Switch PLEASE READ BEFORE USE AND SAVE M2 Antenna Systems Inc 4402 N Selland Ave Fresno CA 93722 Tel 559 432 8873 Fax 559 432 3059 Web www m2inc com 2015 M2 Antenna Systems Incoporated 06 01 15 Rev 00 i S T i a j i T a N bao md d gt D I F N 4 B k N P v w lt i AN N a 6G fe 4 hN my on I aN Lg E RI I7 aE na 7 L Vp i E ef VE CE Serr v EE M2 ANTENNA SYS INC k T EME SEQUENCER S2 oe E POWER PREANP I O POWER This button controls AC power to the Sequencer unit I O PREAMP This button controls 12VDC to control a mast mounted preamp V amp H POLARITY SW
2. EME SEQUENCER S2 S2 EME SEQUENCER THEORY If you have ever blown up your new GasFET preamp or hard to find coaxial relay or are just plain worried about It this transmit receive Time Delay Generator Sequencer is the answer The S2 Sequencers primary application is for VHF UHF transverter amplifier and antenna switching But it can be used in any amplifier antenna scheme An enable signal to the sequencer will produce sequential output commands to a RX relay a TR relay an amplifier and a transverter automatically plus a polarity change lockout WHY USE A SEQUENCER In stations using transverters extra power amplifiers and external antenna mounted TR relays several problems may arise When the exciter is switched into transmit by the PTT or VOX line it immediately puts out a ground or in some cases a positive voltage command for relay control and RF signal If a control signal is supplied to the transverter amplifier and antenna relays simultaneously RF can be applied as the relay contacts bounce In most cases RF will be applied before a relay can make full closer This can easily arc contacts on DC and RF relays and cause permanent damage In addition if the TR relay is not fully closed before RF from the power amplifier is applied excessive RF may leak into the receive side of the relay The likely result oreamplifier failure The TR Transmit Receive time delay generator supplies commands one after another going into tr
3. ITCH This switch controls the Vertical or Horizontal Polarization to a mast mounted 24 28VDC coaxial relay T PREAMP TEST SWITCH If an M2 preamp is used the Noise Test feature can be operated by the T push button on the front panel Noise Test provides an approximate 10 db increase in receiver noise to verify the preamp is operating correctly NUMBERED SEQUENCE INDICATORS 1 4 Sequence indicators will light when the proper sequence is achieved during keying E e 2 l L n 212 VOC re omy en a ne eee AC IN The supplied 3 prong AC cord plugs into this socket Connect to a reliable 110 VAC source The Main AC input and switching power supply have been designed to filter and adjust for incoming AC from 86 264 VAC TERMINAL STRIP The 10 position terminal strip serves as your multi conductor cable interface to a tower mounted relay preamp system A ground connection on terminal 10 has been provided for shielded cables DISCONNECT THE AC POWER CORD WHEN CONNECTING CABLE LEADS XCVR INPUTS TRANSCEIVER In order for the S2 Sequencer to determine the difference between Transmit or Receive it is necessary to supply a Keyed state from your Transceiver We have supplied both a 2 12VDC input and a To Ground input J KK Check your Transceiver manual for the proper connections Most modern Tranceiver s Key to Ground EME S2 SEQUENCER SYSTEM OVERVIEW a M2 ANTENNA SYS ING
4. am C for information To make any changes to the jumper selections loosen the screws on the front and rear panel and slide the cover forward A new jumper selection for Standard usage and Map 65 applications has been included in the S2 Sequencer The S2 Sequencer is shipped with the Standard jumper setting described in Diagram B Diagram A Jumper Designation Diagram C Steering Diode Example ABC ABC Cue Ee ID GROUND 12VDC 12VDC Component E FG H JK 28VDC Component caie 2 gt Caa STANDARD STANDARD STANDARD STANDARD uza Diagram D ATE L ANCON n pe lee E ey 12V DC AL V23105 A5303 A201 19 AXICOM gt ae Al V23105 A5303 A201 e AXICOM gt 1V DC AL 23105 A5303 A201 vna L ere m m L L L U L L L L 1 L i ee gt w AS E of AXICOM av DC AL V23106 A5303 A201 EME S2 SEQUENCER DELAY JP1 The S2 Sequencer has an adjustable delay between sequencing With the JP1 jumper installed factory setting the total delay is approximately 80 milliseconds By removing the jumper the total delay would change to approximately 120 milliseconds See Diagram D for component location To make a change to the time delay jumper loosen the screws on the f
5. ansmit and going back to receive from transmit to turn on all station relays in the right order eliminating the problems just described HERE S HOW IT WORKS Assume we re in receive and are going to transmit A customer selectable 2 to 12VDC or ground command to one of the relays turns it off This allows a capacitor to charge through a resistor raising the voltage applied to all positive inputs through the IC The ladder network on all negative inputs sets the threshold point of each comparator at a successively higher level As the capacitor charges up each comparator will sequentially change output states The outputs drive transistors which are off in the receive mode Drive from the gates turns these transistors on This causes the collectors of the transistors to go low allowing the base to emitter junctions to be forward biased through the 4 LED s to turn on the relays in sequential order The LED s serve as a built in indicators to check performance and sequencing of the generators This is convenient if any state changes are made WHY OUR SEQUENCER IS DIFFERENT M2 Inc has looked at many sequencer concepts and has determined the biggest problem hot switch During Transmit security We have integrated a security relay into the sequencer that DISABLES the front panel vertical horizontal po larization switch when the sequencer is keyed This security relay will save costly repairs or replacements to your high quali
6. d rear panel and slide the cover forward Diagram A Jumper Designation Diagram C Steering Diode Example A BC A B C OQ O O GD GROUND 12VDC 12VDC Component F EG H JK 28VDC Component A o OO OO STANDARD STANDARD STANDARD STANDARD i lt AJ M a CA p ij 3 T EME S2 SEQUENCER DELAY JP1 The S2 Sequencer has an adjustable delay between sequencing With the JP1 jumper installed factory setting the total delay is approximately 80 milliseconds By removing the jumper the total delay would change to approximately 120 milliseconds See Diagram D for component location To make a change to the time delay jumper loosen the screws on the front and rear panel and slide the cover forward S2 EME SEQUENCER TERMINAL ASSIGNMENTS STANDARD E jA E Mi m 2 2 2 2 12 VDC TO GNU Se en an ee ee pS nn e e e Terminal assignments are very important so take your time when doing the wiring Damage can be caused to your Preamp and Power Relays if connections are made incorrectly The Green 10 position terminal connector can be removed for ease of wire connections TERMINAL 1 TERMINAL 2 TERMINAL 3 TERMINAL 4 TERMINAL 5 TERMINAL 6 TERMINAL 7 TERMINAL 8 TERMINAL 9 TERMINAL 10 XCVR INPUT 13 VDC to po
7. e power LED will light STEP 2 If you are planning to use a Preamp for Receive operations turn the Preamp switch to the I position and the power LED will light The Sequencer is now in the Receive state This means that the preamp is powered a Coaxial relay is in Receive state and a Vertical Horizontal coaxial relay can be switched to your desired polarization from the front panel switch STEP 3 To Transmit Key your Mic and note that the Sequencer will run through it s switching process starting with LED indicator 1 and continuing through to LED indicator 4 When the Sequencer is in the Transmit state your supplied Preamp has now been switched to NON operation via the control line disconnecting it from the antenna Your supplied Transmit Receive relay has now been switched to Transmit state and a Your supplied Vertical Horizontal Polarization relay has been locked out to keep the system from being Hot Keyed If you would like to change the Polarization via the Vertical Horizontal switch release the Mic Key and then switch to your desired orientation Note that the Polarization switch will stay in the desired orientation whether you are keying or not This is achieved through a DPDT dual coil latching relay inside the Sequencer STEP 4 To return back to Receive mode release the Mic Key and each relay and a Preamp will return back to it s original starting state Note again that the Vertical Horizontal Polarization indicat
8. e use or inability to use the product Some states or provinces do not allow the exclusion or limitation of liability for consequential or incidental damages so the above limitation may not apply In the event repair or replacement are necessary purchaser shall contact M2 for return authorization In many cases this contact can simplify and expedite the repair replacement process and help reduce costs and downtime The purchaser shall be responsible for packing the product properly for return and for charges to ship the product to M2 Always include with the shipment a statement detailing the problem failure and any other pertinent observations Insuring the product for shipment is recommended Use the original packing materials whenever possible M2 is responsible for charges in the United States to return the repaired replacement product only where warranty service is involved M2 Antenna Systems Inc 4402 N Selland Ave Fresno CA 93722 559 432 8873 Fax 559 432 3059 Web www m2inc com EME S2 SEQUENCER PARTS LIST 08 27 14 DESGRIR THON crre QTY EME S2 SEQUENCER CONTROLLER 1 FPOWER CORD eee EEE 1 JUMPER 2 POSITION cc e 4 USER MANUAL 1 M ANTENNA SYSTEMS INC 4402 N SELLAND AVE FRESNO CA 93722 559 432 8873 FAX 432 3059 www mz2inc com Email sales m2inc com
9. ed both a 2 12VDC input and a To Ground input Check your Transceiver manual for the proper connections These terminal assignments match our preamps and high power relay boxes We recommend this configuration for Homebrew switching designs also but your configuration may vary S2 EME SEQUENCER TERMINAL ASSIGNMENTS MAP 65 j a gt N 2S ws 2 12 VDC TO GNU Se nn ae E nt e e e Terminal assignments are very important so take your time when doing the wiring Damage can be caused to your Preamp and Power Relays if connections are made incorrectly The Green 10 position terminal connector can be removed for ease of wire connections TERMINAL 1 TERMINAL 2 TERMINAL 3 TERMINAL 4 TERMINAL 5 TERMINAL 6 13 VDC to power a Preamp generally tower or mast mounted The 13 VDC will only appear when the Preamp switch has been turned on from the front panel This is for an isolation relay When the sequencer is Keyed the isolation relay will switch to a N O state ls used for a Transmit Receive Relay control line When the sequencer is Keyed your supplied RF coaxial relay will switch to the Transmit State This Terminal has been supplied as a customer related output Connect your PA Bias Control or other related output to this terminal This Terminal has been supplied as a customer related output Connect your Transverter Amplifier or even your Exciter if a foot switch
10. is used This Terminal provides an additional 13VDC output that is constant This can be used to power other items TERMINAL 7 TERMINAL 8 TERMINAL 9 TERMINAL 10 XCVR INPUT Switched 27 VDC to power a Horizontal Vertical Polarization relay generally tower or mast mounted The voltage will only appear when the H V switch has been activated from the front panel of the Sequencer Constant 27 VDC to power a Transmit Receive Relay generally tower or mast mounted This terminal is NOT USED in the Map 65 configuration This terminal is ground Connect a ground wire from your grounding system located in your radio room In order for the S2 Sequencer to determine the difference between Transmit or Receive it is necessary to supply a Keyed state from your Transceiver We have supplied both a 2 12VDC input and a To Ground input Check your Transceiver manual for the proper connections These terminal assignments match our preamps and high power relay boxes We recommend this configuration for Homebrew switching designs also but your configuration may vary S2 SEQUENCER OPERATION G M2 ANTENNA SYS INC L Z msd EME SEQUENCER S2 POWER S2 SEQUENCER OPERATIONS PLEASE NOTE During initial setup testing ensure that no RF is applied until you are confident that all of your devices are functioning properly STEP 1 Turn the Power switch to the I position and th
11. or will stay locked in whatever orientation it was left in NOTES TO CONSIDER Based upon your location the location of the moon and Faraday effects it may take some playing around with the Polarization that works best for you at any given time frame You may find that different times of the day or night may cause you to switch your polarization You may also find based upon conditions that you may need to switch polarization to the opposite state where reception is best This is caused by a combination of Spacial Polarity of each station and the effects of Faraday Polarity Rotation WARRANTY INFORMATION 12 Month Limited Warranty a MZ ANTENNA SYS INC EME SEQUENCER S2 This warranty gives you specific legal rights You may also have other rights which will vary from state to state or province to province M2 warrants the EME SEQUENCER 82 controller unit against defects in material and workmanship for a period of 12 months from date of purchase During the warranty period M2 will at its option either re pair or replace products or components which prove to be defective The warranty shall not apply to defects or damage resulting from Improper or inadequate maintenance by user Improperly prepared installation site Unauthorized modifications or misuse Accident abuse or misapplication Normal wear M2 specifically does not warrant this product for any direct indirect consequential or incidental damages arising from th
12. ront and rear panel and slide the cover forward EME S2 SEQUENCER MAP 65 SETUP EME S2 SEQUENCER OUTPUTS MAP 65 If you are using the popular Map 65 application you may need an additional configured output for an isolation relay We have provided a secondary set of jumpers for this application on the board In the Map 65 configuration the first DPDT RY6 relay has its contacts separated with a jumper The constant 13VDC on terminal 1 is now activated by the contacts of the relay In the RX Receive Mode 13VDC is present When the S2 Sequencer is keyed the 13VDC is removed Terminal 2 is then used for the isolation relay in a keyed state during RX Receive Mode and a N O state in TX Transmit Mode To setup this configuration refer to Diagram B for jumper settings Note that the jumper has been removed from the first output marked Open RY6 TX Jumper towards the bottom right of Diagram D All other outputs for RX Receive Mode and TX Transmit Mode are handled in the same way as the standard outputs Please refer to Standard setup for more details Note if a situation arises where one terminal will have a To Ground state and two different voltage values are tied to the same terminal you must install voltage steering diodes A standard 1N4004 can be used for this application See Diagram C for information To make any changes to the jumper selections loosen the screws on the front an
13. ty RF power relays vray n K aw ii a 1 m Ca wl B _ a P N y a ae c XY hw d 1 Ww oN P 7 ii oN 1 A W E i l rs a TA AN y i a AN 4 N 7 AN AN 2 TA we j i Bao D 7 1 T LS Le AU OU La lN L LA O AII DA EME S2 SEQUENCER OUTPUTS The S2 Sequencer has 4 independent relays of which 2 independent states per relay output can be selected In the TX Transmit Mode B2 B5 jumpers can be setup for a Open Circuit Short to Ground or 13VDC output In the RX Receive Mode A5 A2 jumpers can also be setup for a Open Circuit Short to Ground or 13VDC output In the TX Transmit Mode the sequence is output terminals 2 3 4 5 In The RX Receive Mode the sequence is output terminals 5 4 3 2 Note that in the RX Receive Mode that the delay starts with terminal 5 and works back to terminal 2 For jumper format see diagram A below Diagram D shows each jumper location for either TX Transmit Mode and RX Receive Mode The TX Transmit Mode is factory set as To Ground state on B2 B3 B4 and B5 Note if a situation arises where one terminal will have a To Ground state and two different voltage values are tied to the same terminal you must install voltage steering diodes A standard 1N4004 can be used for this application See Diagr
14. wer a Preamp generally tower or mast mounted The 13 VDC will only appear when the Preamp switch has been turned on from the front panel This is the Preamp control line When the sequencer is Keyed this line will put a Preamp in a NON operating state for Transmit ls used for a Transmit Receive Relay control line When the sequencer is Keyed your supplied RF coaxial relay will switch to the Transmit State This Terminal has been supplied as a customer related output Connect your PA Bias Control or other related output to this terminal This Terminal has been supplied as a customer related output Connect your Transverter Amplifier or even your Exciter if a foot switch is used This Terminal provides an additional 13VDC output that is constant This can be used to power other items Switched 27 VDC to power a Horizontal Vertical Polarization relay generally tower or mast mounted The voltage will only appear when the H V switch has been activated from the front panel of the Sequencer Constant 27 VDC to power a Transmit Receive Relay generally tower or mast mounted This terminal is for the Test feature if you are using the M2 Preamp This terminal is ground Connect a ground wire from your grounding system located in your radio room In order for the S2 Sequencer to determine the difference between Transmit or Receive it is necessary to supply a Keyed state from your Transceiver We have suppli

S2 Sequencer Operating Instructions

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