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SMS-7000 Modem Protection Switch

Installation

Rev. 3

2–13

2.4 Cable

Installation

2.4.1

Interconnecting the Switch Components

Refer to Error! Reference source not found. for typical cable installation.

The equipment rack is a mixed rack consisting of a SDM-6000 Satellite Modem serving
as the prime and a SDM-300 Satellite Modem incorporating the 50-pin data interface,
serving as the backup modem.

The SMS-7000 Switch is provided with two cables. All other cables are optional and the
customer should contact Comtech EFData Customer Support for price and availability.

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Summary of Contents for SMS-7000

Page 1: ...Part Number MN SMS7000 IOM Revision 3 SMS 7000 Modem Protection Switch Installation and Operation Manual...

Page 2: ......

Page 3: ...Document SMS 7000 Modem Protection Switch Installation and Operation Manual Revision 3 September 30 1999 Part Number MN SMS7000 EA3 Collating Instructions Attach this page to page 2 11 Comments The fo...

Page 4: ...ead Shoulder Screw 2 1 4 20x1 4 Socket Head Shoulder Screw 2 Fiber Washers 2 Fiber Washers 2 10 Flat Washers 4 Hinge Base FP 5151 Left Hinge Mounting Plate FP 5152 2 Right Hinge Mounting Plate FP 5152...

Page 5: ...rough 7 Delay None D I 1 2 3 4 Unbalanced Prime Mod 8 Delay None External Clock 1 2 3 4 Unbalanced Prime Demod n Off Insert Data Input 1 2 3 4 Normal Prime Demod 1 2 3 4 Priority Low D I 5 6 7 8 Unbal...

Page 6: ......

Page 7: ...ted September 30 1999 Part Number MN SMS7000 EC3 Collating Instructions Attach this page to page viii Related Documents The following documents are referenced in this manual Department of Defense DOD...

Page 8: ......

Page 9: ...USA Comtech EFData 2114 West 7th Street Tempe Arizona 85281 USA 480 333 2200 FAX 480 333 2161 SMS 7000 Modem Protection Switch Installation and Operation Manual Part Number MN SMS7000 IOM Revision 3 S...

Page 10: ...port Department at service comtechefdata com Contact us via the web at www comtechefdata com 1 To return a Comtech EFData product in warranty and out of warranty for repair or replacement 2 Request a...

Page 11: ...1 Compatibility 1 2 1 1 2 Data Formats 1 4 1 1 3 Options 1 5 1 1 4 Protection Switch 1 6 1 2 Description 1 6 1 2 1 Switch Controller Unit SCU 1 8 1 2 2 Data Switch Unit DSU 1 9 1 2 3 IF Switch Unit IF...

Page 12: ...hrough J10 2 20 2 6 1 SCU Rear Panel 2 22 2 6 1 1 User Remote J1 2 22 2 6 1 2 Modem Remote J2 2 23 2 6 1 3 Switch Faults J3 2 23 2 6 1 4 Prime Mod Online Status J6 2 24 2 6 1 5 Prime Mod Online Status...

Page 13: ...3 30 3 5 2 1 Backup 3 30 3 5 2 2 Prime 3 31 3 5 2 3 Load Verify 3 31 3 5 2 4 Operation Mode 3 32 3 6 Faults 3 32 3 7 Revision Status 3 32 3 8 Initial Defaults 3 33 CHAPTER 4 THEORY OF OPERATION 4 1 4...

Page 14: ...2 Back mount hinge installation 2 11 Figure 2 3 Hinge mount side view 2 12 Figure 2 4 Hinge mount top view 2 12 Figure 2 5 Typical switch installation 2 14 Figure 2 6 SCU rear panel 2 22 Figure 2 7 DS...

Page 15: ...rial data connectors J6 2 27 Table 2 10 V 35 EIA 232 terrestrial data connectors J1 2 29 Table 2 11 Engineering service channel data connectors J4 2 30 Table 2 12 Alarms J2 connectors 2 31 Table 2 13...

Page 16: ...by including description and installation information Added trouble shooting information for installation procedures Chapter 3 Updated software menu from version 2 1 7 to 2 1 8 Added revision emulatio...

Page 17: ...eferences to the old designations are shown only when depicting actual text displayed on the screen of the unit RS 232 RS 485 etc All other references in the manual will be shown with the EIA designat...

Page 18: ...ons Commission FCC Note All cables shall be shielded This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules These limits a...

Page 19: ...CAUTION Double pole Neutral Fusing ACHTUNG Zweipolige bzw Neutralleiter Sicherung International Symbols Symbol Definition Symbol Definition Alternating Current Protective Earth Fuse Chassis Ground No...

Page 20: ...o other warranty is expressed or implied Comtech EFData specifically disclaims the implied warranties of merchantability and fitness for particular purpose Exclusive Remedies The remedies provided her...

Page 21: ...ications for the SMS 7000 satellite modem protection switch The SMS 7000 is hereinafter referred to in this manual as the switch and includes the following components refer to Figure 1 1 IFU Intermedi...

Page 22: ...dems Configuration and control of the switch and attached modems may be performed from a terminal or PC connected to the switch remote port refer to Appendix A or directly from the switch front panel...

Page 23: ...incorporating the 50 pin Data Interface connector must be configured to emulate an SDM 100A Ver 15 7 1 SDM 308 4 SDM 300 300A Either SDM 300 300A incorporating the 50 pin Data Interface connector mus...

Page 24: ...restrial data types such as EIA 422 V 35 or G 703 Modems must be one of the following models SDM 6000 SDM 8000 SLM 6650 SLM 8650 Backup modems must have an AS 2876 interface relay board option install...

Page 25: ...le 1 3 lists the options that are applicable to the switch Table 1 3 Options Input Power Mounting Kit IF Switch Switch Type Switch Quantity Option AC Top KT 5275 No IF Switch Universal 1 None DC Back...

Page 26: ...Control Unit SCU User interface for switch and modem control and configuration Data Switch Unit DSU As commanded by the SCU performs terrestrial data configuration and backup modem data switching IF...

Page 27: ...A SWITCH M N x8 SLAVE CONTROLLER LOW VOLTAGE POW ER LOW VOLTAGE POWER BOP x8 PRIME POWER IN PRIME POWER IN x2 DB50 BACKUP MODEM DATA RX TX x8 DB50 PRIM ARY MODEM DATA RX TX FRONT PANEL FAULT AND STATU...

Page 28: ...s well as query status and faults Note The modem control feature is only available with certain modems Refer to the compatibility chart Table 1 3 for specific applications Figure 1 3 SCU Front Panel T...

Page 29: ...e 1 5 may be equipped with up to eight data switch modules one per prime modem as required The modules may be removed and replaced on site or they can be added later for configuration expansion In add...

Page 30: ...interfaces These interfaces support IBS IDR D I or custom formats Ten modem data cable interfaces are located on the opposite face of the DSU Figure 1 6 one for each of the eight prime and two backup...

Page 31: ...nd interconnected with an extended length interface cable This procedure is recommended if mounting multiple switches in the top of a rack or when separate mounting facilitates IF cabling The user has...

Page 32: ...m or low Configuration Control Remote programmable Type Rate Local EIA 485 232 with provisions for future support of standard network interfaces 110 to 19200 baud Menu driven from the switch front pan...

Page 33: ...each IF Demodulation BNC 8 each Uplinks BNC 8 each Downlinks BNC IF Downlinks up to 8 Uplinks up to 8 Frequency response 50 to 180 MHz Return loss 18 dB Impedance 75 or 50 optional Isolation 60 dB Tr...

Page 34: ...Introduction SMS 7000 Modem Protection Switch 1 14 Rev 3 This page is intentionally left blank...

Page 35: ...not use any cutting tool that will extend more than 1 inch 2 5 cm into the container and cause damage to the switch To remove the switch 1 Cut the tape at the top of the carton indicated by OPEN THIS...

Page 36: ...itch contains the following components Note Parts are not drawn to scale Qty Description Qty Description 1 SMS 7000 Switch 1 Installation and Operation Manual 1 Cable Assembly 37 Pin Comtech EFData Pa...

Page 37: ...0 Flat Washer Comtech EFData HW 10 FLT 1 Plate Hinge Mounting Comtech EFData Part FP 5152 2 4 10 32 x 3 8 Phillips Screw Comtech EFData Part HW 10 32X3 8 P H 1 Panel Hinge Latch Comtech EFData Part FP...

Page 38: ...y Description 2 Bracket Rack Mounted IF Chassis Comtech EFData Part FP 5272 6 4 40 x 3 8 Phillips Head Screw Comtech EFData Part HW 4 40X3 8P H 2 Bracket Rack Mounted Switch Chassis Comtech EFData Par...

Page 39: ...onal cables 2 Contact Comtech EFData Sales department for information regrading the price and availability of the cables 1 Required cables for rack installation include Qty Description Qty Description...

Page 40: ...mm drive ratchet 3 x 3 8 inch 76 x 9 mm drive extension 1 2 x 3 8 inch drive socket Metric equivalent 13mm 6 pt 3 8 x 3 8 inch drive socket Metric equivalent 9mm 6 pt 1 4 x 3 8 inch drive socket Metri...

Page 41: ...sed The two basic mounting locations are Top mount Back mount 2 3 1 Description 2 3 1 1 Top Mount This installation is intended for ceiling routed cables where terrestrial data harnesses conveniently...

Page 42: ...Intermediate Frequency Switch Unit IFU to a standard equipment rack rails Kit components are listed in Section 2 2 Although top mounting can be employed wherever there is clearance within the rack it...

Page 43: ...SMS 7000 Modem Protection Switch Installation Rev 3 2 9 Figure 2 1 Top Mount Installation...

Page 44: ...kup modems that it services Note This mounting requires the use of right angle backshells for both the modem and terrestrial data cables Assemble the DSU and IFU as shown in and as follows 1 Position...

Page 45: ...SMS 7000 Modem Protection Switch Installation Rev 3 2 11 Figure 2 2 Back Mount Hinge Installation...

Page 46: ...Installation SMS 7000 Modem Protection Switch 2 12 Rev 3 Figure 2 3 Hinge Mount Side View Figure 2 4 Hinge Mount Top View...

Page 47: ...ble installation The equipment rack is a mixed rack consisting of a SDM 6000 Satellite Modem serving as the prime and a SDM 300 Satellite Modem incorporating the 50 pin data interface serving as the b...

Page 48: ...8000 PRIM E 2 SDM 8000 PRIM E 3 S M S 7000 S CU Rear Panel SDM 300 50 pin D Connector Backup M odem J6 J6 J4 J3 J2 J1 J6 Rem ote J6 R em ote J6 Remote J6 R em ote J6 Rem ote C P1 TX IF O utput TX O u...

Page 49: ...EFData The remote serial interface J6 connector of each modem in the configuration is bussed to the SCU Modem Remote J2 connector This cable is a 9 pin D EIA 485 2 wire ribbon cable and must be connec...

Page 50: ...s available in either straight hoods or right angle hoods Refer to Table 2 1 This cable includes two faults Mod and Demod pins 49 and 33 The modems will ground the two pins when a No Fault condition e...

Page 51: ...the SDM 300 and current versions of the SDM 6000 and SDM 8000 modems Note Communications shall be established between the switch controller and the modems No visual activity will occur however relays...

Page 52: ...e prime modem The switch controller will ignore the faults from the modem b Configure the prime modems c If Drop and Insert is the applications then use Insert Clock as the RX Buffer Select LOOP that...

Page 53: ...d modems One modem is high power and one is normal power out Set modems to 5 dBm 2 Software version numbers are not compatible Upgrade the firmware as necessary 3 SDM 8000 is emulating an SDM 6000 and...

Page 54: ...y occur for each data configuration are listed in Table 2 3 Table 2 3 DSU Data Connections J1 through J10 Signal Name Overhead Type SDM 100 and No Overhead Pin IBS IDR D I EIA 422 V 35 EIA 232 1 GND G...

Page 55: ...A1I B RTS B 30 RR B A1O B RR B 31 CTS B A2I B CTS B 32 DM B A2O B DM B 33 DMD FLT DMD FLT DMD FLT 34 G703_SDA SD A DDI A 35 EXC A EXC A EXC_A EXC A EXC A EXT CLK 36 G703_RDA RD A IDO A 37 SD A 8K TXD...

Page 56: ...computer The control device then communicates with the switch and associated modems using the protocol defined in Appendix A The user remote interface can be an EIA 485 or EIA 232 110 to 19200 baud Th...

Page 57: ...by Form C relay contacts for status monitoring Controller Fault is indicated by a Common to Normally Closed contact closure activated if the controller loses power M N faults are indicated by a Common...

Page 58: ...Maximum current is 1A at 30 VDC The connector is a 25 pin female D with the pinouts as shown in Table 2 7 Table 2 7 Prime Mod Online Connector J6 Pin Signal Name 1 MOD 1 COM 2 MOD 1 NC 3 MOD 1 NO 4 M...

Page 59: ...Maximum current is 1A at 30 VDC The connector is a 25 pin female D with the pinouts as shown in Table 2 8 Table 2 8 Prime Demod Online Connector J5 Pin Signal Name 1 DMD 1 COM 2 DMD 1 NC 3 DMD 1 NO 4...

Page 60: ...Data Interfaces Refer to Figure 2 7 Up to eight switch modules support the following terrestrial data interfaces V R S 3 2 5 3 2 V R S 3 2 5 3 2 V R S 3 2 5 3 2 V R S 3 2 5 3 2 V R S 3 2 5 3 2 V R S...

Page 61: ...1 V 35 or J3 G 703 ports When using EIA 422 data all data switch modules must have jumper JP1 in EIA 422 position with jumpers connecting the middle pin and the pin closest to the front of the switch...

Page 62: ...422 Terrestrial Data Connectors J6 Continued Signal Name Pin IBS IDR D I 22 SD B 8K TXD B 23 ST B 8K TXC B 24 RD B 8K RXD B 25 RTS B RTS B A 26 RT B 8K RXC B L 27 CTS B CTS B 28 29 DM B N C 30 31 RR B...

Page 63: ...e middle pin and the pin furthest from the front of the switch module For V 35 all jumpers must be in EIA 422 position Table 2 10 V 35 EIA 232 Terrestrial Data Connectors J1 Signal Name Pin IBS V 35 I...

Page 64: ...There is one connector per channel The pinouts are shown in Table 2 11 Table 2 11 Engineering Service Channel Data Connectors J4 Signal Name Pin IBS IDR D I 1 SHIELD SHIELD 2 TXD A TXD A 3 RXD A RXD...

Page 65: ...rs Signal Name Pin IBS IDR D I 1 N C N C N C 2 N C BWO1 C N C 3 N C BWO1 NC N C 4 N C BWO2 NO N C 5 PROMPT COM BWO3 C PROMPT COM 6 PROMPT NC BWO3 NC PROMPT NC 7 SERVICE NO BWO4 NO SERVICE NO 8 N C DF...

Page 66: ...defined for the IDR data format is a 9 pin female D with one connector per channel The pinouts are shown in Table 2 13 Table 2 13 ADPCM Audio Data J5 Connectors Signal Name Pin IBS IDR D I 64K 1 C A1I...

Page 67: ...s no connection to the J6 EIA 422 or J1 V 35 ports When using G 703 data all data switch modules must have jumper JP1 in EIA 422 position with jumpers connecting the middle pin and the pin closest to...

Page 68: ...J3 and J6 The pinouts are shown in Table 2 15 CAUTION When using the G 703 unbalanced data ports for other than IDR data be certain there is no connection to the J6 EIA 422 or J1 V 35 ports When usin...

Page 69: ...ble 2 16 These ports are BNC female either 50 or 75 as required Table 2 16 IFU Uplink IF Downlink Data Connectors Connector Reference Signal CP1 CH1 Uplink CP2 CH2 Uplink CP3 CH3 Uplink CP4 CH4 Uplink...

Page 70: ...Installation SMS 7000 Modem Protection Switch 2 36 Rev 3 This page is intentionally left blank...

Page 71: ...onfiguration The configuration of the protection switch may be performed from the front panel or from a terminal or personal computer connected to the protection switch remote port J1 Each front panel...

Page 72: ...Modems menu 3 1 2 Prime Modems When progressing into the prime modem 1 through 8 configuration menus two possible menu sets are available independent or dependent If assigned to a backup designated a...

Page 73: ...ions failure between the switch modules or a detected fault within the switch hardware Specifics are displayed in the Fault Alarm menu For example a power supply not plugged in will indicate this faul...

Page 74: ...of a selection or to cancel a configuration change which has not been executed by pressing ENTER Pressing CLEAR generally returns the display to the previous selection and These keys are used to move...

Page 75: ...el by pressing ENTER After entering the appropriate functional level press or to move to the desired function To view or change the configuration of the protection switch enter the Configuration level...

Page 76: ...Operation SMS 7000 Modem Protection Switch 3 6 Rev 3 This page is intentionally left blank...

Page 77: ...ATION BACKUP 1 or 2 Figure 3 3 CONFIGURATION INDEPENDENT PRIME 1 through 8 Figure 3 4 CONFIGURATION DEPENDENT PRIME 1 through 8 Figure 3 5 CONFIGURATION LOAD VERIFY Figure 3 6 SYSTEM STATUS SWITCHING...

Page 78: ...anual mode only n n n n n n n n Toggling each n digit assigns or deassigns prime modems 1 8 respectively An _ is displayed when not assigned Manual mode only if INDEPENDENT Status window YES NO n 1 to...

Page 79: ...ailure occurs DEPENDENT mode switching will place the whole Prime modem to the Backup modem When a failure occurs INDEPENDENT switching will only switch half the modem either the Modulator or the Demo...

Page 80: ...8 PRIME DEMOD n DELAY NONE AUTO MANUAL n 1 through 8 BREAKOUT n CONFIGURATION PRIME n MULTIPLEXER PRIME n MULTIPLEXER ADDRESS xxx YES NO n 1 through 8 If YES the following selection will be displayed...

Page 81: ...status is displayed Press or to make the selection Press ENTER to execute the change PRIME DEMOD n Must be On for the switch to recognize it as active Upon entry the current status is displayed Press...

Page 82: ...the BNC connectors for Unbalanced Use the DB15 connector for Balanced EXTERNAL CLOCK Use the BNC connectors for Unbalanced Use the DB15 connector for Balanced INSERT DATA INPUT Options NORMAL or LOOP...

Page 83: ...SMS 7000 Modem Protection Switch Operation Rev 3 3 13 This page is intentionally left blank...

Page 84: ...d ON OFF n 1 through 8 Manual mode only NONE AUTO MANUAL n 1 through 8 n 1 through 8 xxx 0 to 255 Displayed only if YES is selected in the previous window BREAKOUT n CONFIGURATION PRIME n MULTIPLEXER...

Page 85: ...er than their own Otherwise when the delay is set to NONE the switch will oscillate between prime and backup modems This occurs because the output of the modulator has been interrupted while the whole...

Page 86: ...MODEMS VERIFY PRIME MODEM n VERIFY BACKUP MODEM n n 1 or 2 n 1 or 2 n 1 through 8 n 1 through 8 VERIFY ALL MODEMS ACCESS TO SUBMENU CONDITIONAL OR OPTION DEPENDENT Parameter Information Key PRESS ENT...

Page 87: ...for any one prime modem LOAD BACKUP MODEM n Active modems only use if configuration changes have been made to all prime modems LOAD ALL MODEMS Active modems only Press ENTER twice to load VERIFY PRIME...

Page 88: ...r Dependent Backups 1 or 2 Independent n 0 or 1 to 8 Enter 1 to 8 for online 0 for off line BACKUP 1 MODEM BACKUP PRIME MODEM n n 0 or 1 to 8 Enter 1 to 8 for online 0 for off line BACKUP 1 DEMOD BACK...

Page 89: ...e Backup modem automatically replaces the failed Prime modems If MANUAL a submenu is enabled for direct control of the protection switch The submenu displayed depends on the switching mode of the curr...

Page 90: ...S SYSTEM STATUS SWITCHING MOD mmmmmmmm Byxn Bzxn DMD dddddddd Byxn Bzxn ACCESS TO SUBMENU CONDITIONAL OR OPTION DEPENDENT Parameter Information Key MOD mmmmmmmm By xxxxx n Bz xxxxx n Status Window DEM...

Page 91: ...Mod Demod is not online or HOT STANDBY x indicates prime Mod Demod being backed up x is blinking indicates transition to HOT STANDBY mode x is blinking indicates Mod Demod Backup operation in process...

Page 92: ...BMENU CONDITIONAL OR OPTION DEPENDENT Parameter Information Key BU1 ASSGN MOD mmmmmmmm xxx PRIORITY pppppppp Status Window BU1 ASSGN DEMOD mmmmmmmm xxx PRIORITY pppppppp Status Window BU2 ASSGN MOD mm...

Page 93: ...pendent active backup Mod switching mode p Active prime Mod priority H High M Medium L Low BU1 ASSGN DEMOD dddddddd xxx PRIORITY pppppppp Status window Where dddddddd 1 through 8 active prime Demods N...

Page 94: ...UP MU COMM FAILURE NO ADDRESS FOR BK UP MU Displayed if multiplexer is attached SYSTEM FAULTS PRIME n n 1 through 8 MODEM COMM FAILURE MOD CONFIG VERIFY ERROR DMD CONFIG VERIFY ERROR NO ADDRESS FOR PR...

Page 95: ...fault condition BK UP MU COMM FAILURE and NO ADDRESS FOR BK UP MU are displayed only when the multiplexer is enabled SYSTEM FAULTS PRIME n n 1 through 8 Faults are indicated by a sign Scroll to the s...

Page 96: ...FOR BK UP NO MOD CONFIG LOADED NO DEMOD CONFIG LOADED NO PRIMES ASSIGNED BK UP MU COMM FAILURE NO ADDRESS FOR BK UP MU Displayed if multiplexer is attached SYS FAULTS PRIME n HH MM SS MM DD YY n 1 th...

Page 97: ...dest Time and date displayed if fault is recorded otherwise displays NO FAULT Scroll up or down to see number of faults stored up to 10 Press ENTER to see fault BK UP MU COMM FAILURE AND NO ADDRESS FO...

Page 98: ...ne REMOTE ADDRESS 1to 255 REMOTE TYPE RS 232 RS 485 2 Wire RS 485 4 Wire MODEM CONTROL BAUD RATE 9600 or 19200 toggle Available in Manual Mode only LAMP TEST DISPLAY CONTRAST 0 to 100 M C MODULE FW FW...

Page 99: ...nnn 1 to 255 of the switch Scroll left or right and press or to set then press ENTER Note Address 0 is reserved for global communications REMOTE TYPE type Scroll left or right then press ENTER Option...

Page 100: ...c application requirements The switch mode must be in Manual to make most configuration changes 3 5 2 1 Backup To configure the backup parameters set the following Address Enter a unique 3 digit decim...

Page 101: ...m demods must have input from a source modem other than their own Otherwise when the delay is set to NONE the switch will oscillate between prime and backup modems This occurs because the output of th...

Page 102: ...nu On demand via the switch remote port Specifics for both switch and modem faults are available Audio and or visual indicators wired directly to the Switch Fault and Modem Status ports on the rear of...

Page 103: ...ut 1 2 3 4 Normal Prime Demod 1 2 3 4 Priority High D I 5 6 7 8 Balanced Prime Demod 5 6 Priority Medium External Clock 5 6 7 8 Balanced Prime Demod 7 8 Priority Low Insert Data Input 5 6 7 8 Loop Pri...

Page 104: ...Operation SMS 7000 Modem Protection Switch 3 34 Rev 3 This page is intentionally left blank...

Page 105: ...ont panel utilities menu refer to Chapter 3 J1 is defined as EIA 232 or EIA 485 at 110 to 19200 baud rate Modem remote J2 is the port through which the switch controls and monitors modem configuration...

Page 106: ...Theory of Operation SMS 7000 Modem Protection Switch 4 2 Rev 3 Figure 4 1 IF Switch Block Diagram...

Page 107: ...Unbalanced CP1 SD DDI CP2 RD IDO CP3 DDO CP4 IDI J5 ADPCM Audio or 64K OH Data CP5 External Clock Unbalanced J4 Engineering Service Channel J2 Alarms Coax Coax Coax Coax 9 pin D Coax 25 pin D 25 pin...

Page 108: ...fault output pins is isolated from internal switch electronics through single pole and double throw relays The three contacts of each relay are provided to the user for direct application of visual an...

Page 109: ...X signals BNC IFU J2 Modem remote 9 pin D SCU The signal pin assignments of each channel depend on the configuration of the attached prime modem When commanded to load the switch queries each prime mo...

Page 110: ...t conditions have no effect For switching without operator intervention the switch must be in Auto mode Prior to placing a backup online the switch configures the backup modem to match the configurati...

Page 111: ...o priorities The remaining backup if any will be placed in a standby condition for the highest priority non faulted channel Switching requirements are itemized as follows Backup BU modems when turned...

Page 112: ...Theory of Operation SMS 7000 Modem Protection Switch 4 8 Rev 3 This page is intentionally left blank...

Page 113: ...itions or enhancing features and or corrective actions Control software resides in a programmable device inside the one unit 1U switch control chassis AS 4800 To replace software CAUTION When replacin...

Page 114: ...modulator faults are reported by the switch as part of the overall configuration status The details of modem faults are available from the individual modem fault menus Refer to the appropriate modem i...

Page 115: ...ions of fault mechanisms and checks actions If multiple faults occur the common symptom listed in the Action column will be the source of the fault Note It is recommended that power be removed from th...

Page 116: ...to OFF if not in use Designate backup assignment for prime DATA SWITCH MODULE 1 to 8 or IF SWITCH MODULE Set if module does not respond to commands from the SCU or responds with error message If error...

Page 117: ...son chart Table A 1 Remote controls and status information are transferred via a 2 4 wire EIA 485 optional EIA 232 serial communications link Commands and data are transferred on the remote control co...

Page 118: ...se Verify Prime Modem Config VMC_x VMC_x VMC_x Limited response Verify All Modem Configs VMC_ALL VMC_ALL VMC_ALL Limited response Drop and Insert G 703 Data DID_n_xxxxx SMS 7000 only External Clock EC...

Page 119: ...nly IF Switch Module Firmware Info IMFI_ SMS 7000 only Firmware Version Status VER_ VER_ SMS 658 SMS 758 only Backup Multiplexer Attached MU_Bx_yyy SMS 7000 only Backup Multiplexer Address MUA_Bx_yyy...

Page 120: ...panel software selectable and must be in the range between 1 to 255 A 2 2 Command Response The command response portion of the message contains a variable length character sequence which conveys comma...

Page 121: ...acter device address in the range between 1 and 255 2 The switch does not respond to erred communications i e parity and framing errors A 2 3 End Character Each message is ended with a single characte...

Page 122: ...modem number yyy IND Independent or DEP Dependent Note Enter command in Manual mode only Prime Modem Assign Command Response Command Response Status Response add PMA_Bx_yyyyyyyy cr add PMA_Bx_yyyyyyyy...

Page 123: ...r add DA_x_yyy cr lf Where x 1 to 8 prime modem demodulator number yyy YES or NO Note Enter command in Manual mode only Prime Modulator Priority Command Response Status Response add MP_x_y cr add MP_x...

Page 124: ...y cr add MU_x_yyy cr lf add MU_x cr add MU_x_yyy cr lf Where x 1 to 8 prime multiplexer number yyy YES or NO Prime Multiplexer Unit Address Command Response Status Response add MUA_x_yyy cr add MUA_x_...

Page 125: ...put Command Response Status Response add IDI_n_xxxx cr add IDI_n_xxxx cr lf add IDI_n cr add IDI_n_xxxx cr lf Where n 1 to 8 prime channel number xxxx LOOP or NORM for NORMAL A 3 5 System Time of Day...

Page 126: ...ommand places specified backup modem modulator online or offline for the specified prime modem modulator 2 Enter command in Manual mode only Set Backup Demod On line Off line Manual mode Independen t...

Page 127: ...Demodulator Active YES NO Modem Address Switching Mode IND DEP Prime Modem Assignments Multiplexer Unit Attached YES NO Multiplexer Unit Address The backup demodulator configuration status command cau...

Page 128: ...atus OK FLT Prime 3 Modulator Status OK FLT Prime 4 Modulator Status OK FLT Prime 5 Modulator Status OK FLT Prime 6 Modulator Status OK FLT Prime 7 Modulator Status OK FLT Prime 8 Modulator Status OK...

Page 129: ...Prime 6 RX Operational Status OK FLT Prime 7 RX Operational Status OK FLT Prime 8 RX Operational Status OK FLT Number of Stored Faults Logged 0 through 10 Backup Modem System Fault Status Summary Comm...

Page 130: ...LK_FLT cr M C_FLT cr I2C_FLT cr lf Modem Communications Faults Mod Config Verify Faults Demod Config Verify Faults No Mod Configuration Loaded No Demod Configuration Loaded No Address Specified for Mo...

Page 131: ...y representation 0 through 10 of the number of TX Operational stored faults Character g RX Operational fault status character 1 Bit 6 1 always Bit 5 RX Prime 1 operational fault Bit 4 RX Prime 2 opera...

Page 132: ...Bit 3 through Bit 0 Binary representation 0 through 10 of the number of Backup 2 system stored faults Character o Prime 1 system fault status character 1 Bit 6 1 always Bit 5 Prime modem communicatio...

Page 133: ...always Bit 5 Prime not assigned to backup fault Bit 4 Prime multiplexer communications failure fault Bit 3 No address for prime multiplexer fault Bit 2 Reserved Bit 1 Reserved Bit 0 Reserved Character...

Page 134: ...fault Bit 3 Prime demodulator configuration verify error fault Bit 2 No address for prime fault Bit 1 No prime modulator configuration loaded fault Bit 0 No prime demodulator configuration loaded faul...

Page 135: ...failure fault Bit 3 No address for prime multiplexer fault Bit 2 Reserved Bit 1 Reserved Bit 0 Reserved Character al Prime 8 system fault status character 3 Bit 6 1 always Bit 5 Reserved Bit 4 Reserv...

Page 136: ...atus OK FLT Receive Operational Stored Faults Command Response add ROSF_ cr add ROSF_ hh mm ssMM DD YY cr DMD_1_xxx cr DMD_2_xxx cr DMD_3_xxx cr DMD_4_xxx cr DMD_5_xxx cr DMD_6_xxx cr DMD_7_xxx cr DMD...

Page 137: ...DATA_MODULE_5_xxx cr DATA_MODULE_6_xxx cr DATA_MODULE_7_xxx cr DATA_MODULE_8_xxx cr IF_MODULE_xxx cr PS1_xxx cr PS2_xxx cr NVRAM_CLK_xxx cr M C_xxx cr I2C_xxx cr lf Data Switch Module 1 OK FLT Data Sw...

Page 138: ...mm dd yy cr or DM6_xxx cr DM7_FW nnnnnn zzr mm dd yy cr or DM7_xxx cr DM8_FW nnnnnn zzr mm dd yy cr lf or DM8_xxx cr lf Where nnnnnn Firmware number 0 to 99999 zz Firmware dash number 0 to 99 r Firmw...

Page 139: ...ter CAUTION This equipment contains parts and assemblies sensitive to damage by Electrostatic Discharge ESD Use ESD precautionary procedures when touching removing or inserting Printed Circuit Boards...

Page 140: ...can be directly connected to the prime multiplexer The 8 kbit s overhead will not be switched to the backup in the event of a prime modem and or multiplexer failure Connect all multiplexers via Remote...

Page 141: ...CH4 RDA 15 7 CH4 RDB 33 B 2 Operation On the switch M C Configuration menu enable multiplexers by selecting YES on the Multiplexer submenu for each modem with a multiplexer Enter a unique address for...

Page 142: ...M 2000 Multiplexer Utilization SMS 7000 Modem Protection Switch B 4 Rev 3 This page is intentionally left blank...

Page 143: ...hronous AUTO Automatic BCKUP Backup BOP Break Out Panel BU Backup BUS Buss CH Channel Coax Coaxial COM Common CONFIG Configuration D I Drop and Insert DDI Drop Data In DDO Drop Data Out Demod Demodula...

Page 144: ...CB Printed Circuit Board PWB Printed Wire Board RD Receive Data RLSD Receive Line Signal Detect RR Receiver Ready RS Reed Solomon RT Receive Timing RTS Request to Send RX Receive Receiver RXCLK Receiv...

Page 145: ...STALLATION 2 1 Interconnecting the Switch Components 2 13 Interfaces 1 12 1 13 2 26 4 1 4 3 LED Indicators 3 3 Load Verify 3 16 3 17 3 31 5 2 5 3 5 4 Manual Mode 4 6 Menu System 3 5 Message Structure...

Page 146: ...m Protection Switch i 2 Rev 3 Terrestrial Data 1 13 2 26 2 27 2 28 2 29 4 3 THEORY OF OPERATION 4 1 Top Mount 2 7 2 9 Unbalanced Data Ports 2 34 Unpacking 2 1 User Interfaces 2 22 User Remote J1 2 22...

Page 147: ...103 1 609 x 103 1 609 1 mm 0 03937 1 kilometer 0 621 Temperature Conversions Units of Weight Unit Gram Ounce Avoirdupois Ounce Troy Pound Avoir Pound Troy Kilogram 1 gram 0 03527 0 03215 0 002205 0 0...

Page 148: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...

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