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RCS20

M:N Redundancy Switch

Installation and Operation Manual

TM056

Rev. 2.3

- NOTICE -



2003, Radyne ComStream, Inc. This manual

may not in whole or in part be copied,
reproduced, translated or reduced to any
electronic or magnetic storage medium without
the written consent of a duly authorized officer of
Radyne ComStream, Inc.

Radyne ComStream, Inc.

•

3138 E. Elwood St.

•

Phoenix, AZ 85034

•

(602) 437-9620

•

Fax: (602) 437-4811

Содержание RCS20

Страница 1: ...eam Inc This manual may not in whole or in part be copied reproduced translated or reduced to any electronic or magnetic storage medium without the written consent of a duly authorized officer of Rady...

Страница 2: ......

Страница 3: ...nty Coverage Limitations The following are expressly not covered under warranty 1 Any loss damage and or malfunction relating in any way to shipping storage accident abuse alteration misuse neglect fa...

Страница 4: ...t this time that Radyne ComStream Inc will authorize the product or part to be returned to the Radyne ComStream Inc facility or if field repair will be accomplished The Repair Authorization may be req...

Страница 5: ...be represented as 7 ENTER Cautions and Warnings A caution icon indicates a hazardous situation that if not avoided may result in minor or moderate injury Caution may also be used to indicate other uns...

Страница 6: ...ecifications of products or in this manual at any time without notice and without obligation to notify any person of such changes Record of Revisions Revision Level Date Reason for Change 1 6 30 96 In...

Страница 7: ..._________________________________________________ 2 2 2 4 System Cable Configuration _________________________________________ 2 3 2 5 System DIP Switch and Jumper Settings ___________________________...

Страница 8: ..._______________ 4 2 4 1 3 1 MODEM MOD CONFIG__________________________________________ 4 3 4 1 3 2 MODEM DEMOD CONFIG _______________________________________ 4 3 4 1 3 3 MODEM INTFC CONFIG____________...

Страница 9: ..._________________ 4 16 4 7 7 RLLP Summary ________________________________________________ 4 17 4 7 8 RCS20 Opcode Command Set ____________________________________ 4 18 4 7 9 RCS20 Channel Definitions...

Страница 10: ...__________________ 6 3 6 2 3 Alarm Masks ____________________________________________________ 6 4 6 2 4 Latched Alarms__________________________________________________ 6 4 6 3 Equipment Return and Re...

Страница 11: ...in the redundancy configuration Figure 1 RCS20 M N Redundancy Switch 1 1 Digital Data Switch DDS20 The DDS20 provides all of the data interconnections between the online and backup modems The DDS20 al...

Страница 12: ...pictorial representation of the RCU20 front panel Figure 1 2 for a Functional Block Diagram of the RCS20 System and Figure 2 7 for an interconnection diagram of the complete system including the cabli...

Страница 13: ...stem Test Data Sheet M N Switch to Modem Cable s for Backup Modulator and Demodulator Test I O Mating Connector Optional 1 N Switch to Modem I O and Coaxial Cables for Modems 1 9 Optional Modem bypass...

Страница 14: ...ack Units RU high and must be mounted on the front of a rack with the front panel facing forward as shown in Figure 1 1 The DDS20 is 8 5 RU high and is preferably mounted at the top of a rack unit wit...

Страница 15: ...tion This section describes the cabling configurations for the various combinations of DMD15 2400 Modulators Demodulators Modems and Transponders The following figures are provided to illustrate the p...

Страница 16: ...Installation RCS20 M N Redundancy Switch 2 4 TM056 Rev 2 3 Figure 2 3 IFS20 Chassis Base Unit Rear Available Connectors Figure 2 4 DDS20 Digital Data Switch Front and Rear Panels...

Страница 17: ...l be present The IFS20 and DDS20 receive DC power through the RCS20 interconnection cable Therefore to ensure that no DC power is being applied to the back plane modules both of the Switch s AC line c...

Страница 18: ...dancy Switch 2 6 TM056 Rev 2 3 The AS 3356 Modules were shipped with older models of the DDS20 Refer to Tables 2 1 through 2 5 for the various DIP Switch configurations on these assemblies Figure 2 6a...

Страница 19: ...RCS20 M N Redundancy Switch Installation TM056 Rev 2 3 2 7 Figure 2 6b AS 3356 Data Switch Module...

Страница 20: ...Installation RCS20 M N Redundancy Switch 2 8 TM056 Rev 2 3 Figure 2 6c AS 3356 Data Switch Module for AS 3478 Rev A2 Forward Only...

Страница 21: ...tically switches between EXT A EXT B or Internal References based upon onboard Clock Activity Detect circuits The RDM is illustrated in Figure 2 8 There are six BNC type connectors on the RDM The func...

Страница 22: ...ncy Switch 2 10 TM056 Rev 2 3 Figure 2 8 RCU Reference Distribution Module Jumper Settings External Input A EXT A Impedance 50 75 510O Jumper Selectable Frequency 1 25 2 5 5 0 and 10 0 MHz Input Level...

Страница 23: ...ternal Input Microprocessor Interface External 1 External 2 Internal Reference Select External Input Activity Detectors Internal Reference Activity Detector Reference Output OUT1 OUT2 OUT3 OUT4 Output...

Страница 24: ...ceive Data RD BNC connector located on the Universal Interface Module 2 6 5 J5 ESC Audio J5 is the 9 pin D Female ESC Audio Channel connector The pinouts for this connector are shown below in Table 2...

Страница 25: ...8 RXD B Receive Data B RS485 Output 9 RXD A Receive Data A RS485 Output 2 6 7 J7 ESC Alarm Interface The connector pinouts for J7 the 25 Pin ESC Alarm Interface are shown below Table 2 8 J7 ESC Alarm...

Страница 26: ...Input 24 NC No Connection None 25 NC No Connect None 2 6 8 J8 ESC 8K Data Interface J8 is the 15 pin ESC IDR 8 Kbit overhead data connector The pinouts are shown below Table 2 9 J8 ESC 8K Data Interfa...

Страница 27: ...Output 13 Insert Data In A EXC A IDI A Input 6 Insert Data In B ESC B IDI B Input 2 6 10 J10 Sync Data J10 is the 37 pin synchronous data connector located on the Universal Interface Module The pinou...

Страница 28: ...J10 Switch Connector J1 through J10 are the 68 Pin high density data connectors that carry data to and from the modem The pinouts for these connectors are shown below in Table 2 12 Table 2 12 J18 Swit...

Страница 29: ...n Collector Output Output Open Collector 22 ES RXD A IBS ES Receive Data Output A Output 23 ES DSR IBS ES Data Set Ready RS232 Only Output 24 ESCTXC A IDR ESC Transmit 8 Kbps Output Clock Output 25 ES...

Страница 30: ...IDR ESC Audio Input Channel 2B Input 51 ESCAUDRX 1B IDR ESC Audio Output Channel 1B Output 52 ESCAUDRX 2B IDR ESC Audio Output Channel 2B Output 53 ESCBWI 4 IDR ESC Backward Alarm Input 4 54 TX B BWI...

Страница 31: ...one 2 MJA C Major Alarm C None 3 MJA NO Major Alarm NO None 4 NC No Connect None 5 NC No Connect None 6 NC No Connect None 7 MNA NC Minor Alarm NC None 8 MNA C Minor Alarm C None 9 MNA NO Minor Alarm...

Страница 32: ...ect None 5 COMMON Signal Common None 6 TxD A Transmit Data A Output 7 NC No Connect None 8 RxD B Receive Data B Input 9 RxD A Receive Data A Input Table 2 16 J3 Switch Interface Control Card RS232 Ter...

Страница 33: ...ts Output 9 GND Ground None 10 GND Ground None 11 VCC_RELAY Relay 6 Volts Output 12 DDS_LDAT1 Serial Control Data 1 Bi directional 13 GND Ground None 14 DDS_LDAT3 Serial Control Data 3 Bi directional...

Страница 34: ...S485 Modem Control 9 pin D Female Pin No Signal Description Direction 1 TxD B RS485 HDLC Transmit Data B Output 2 TCLK A HDLC Transmit Clock A Output 3 TCLK B HDLC Transmit Clock B Output 4 RCLK A HDL...

Страница 35: ...erial Control Clock Input 2 NC No Connect None 3 NC No Connect None 4 GND Ground None 5 GND Ground None 6 VCC Logic 5 Volts Input 7 VCC_RELAY Relay 6 Volts Input 8 NC No Connect None 9 NC No Connect N...

Страница 36: ...Installation RCS20 M N Redundancy Switch 2 24 TM056 Rev 2 3...

Страница 37: ...functions of the Switch and performs all necessary calculations The non volatile system memory on the board stores the switching parameter settings for each Modem Channel Control and data signals are...

Страница 38: ...ys switch the IF signals to the Backup units The signals to each downlink relay pass through a splitter with a loss of about 3 5 dB including the loss due to energy splitting 3 6 DDS20 Major Assemblie...

Страница 39: ...ttons the numeric Keypad and the LED Indicators each described below 4 1 2 Front Panel LCD Display The front panel display is an 8 line by 40 character LCD display The display is lighted and the brigh...

Страница 40: ...quid Crystal Display used to communicate with the RCS20 3 RESET ALARMS Reset Alarms This key resets all RCS20 current and latched major and minor alarms 4 MODEM SELECT Select Current Modem This key se...

Страница 41: ...implemented on the RCS20 4 1 3 3 MODEM INTFC CONFIG Pressing this key brings up a series of menus on the LCD that allow control of the terrestrial interface for the currently selected modem The curre...

Страница 42: ...MODEM and SWITCH groups and the SWITCH STATUS LEDs are those in the SWITCH STATUS group see Table 4 2 Menu LED Indicators Green Each Menu LED corresponds to the MODEM group or SWITCH group key locate...

Страница 43: ...ar of the unit on the Switch Interface plug in module The pinouts for the remote port are listed in Section 2 The terminal port supports standard UART asynchronous protocol with 8 data bits no parity...

Страница 44: ...from the front panel of the RCS20 is implemented through a series of data entry screens screens that are displayed on the front panel LCD The screens are organized into groups of related parameters an...

Страница 45: ...e menu tree If a parameter has a non numeric value the allowed values for that parameter can be edited by pressing soft keys with the desired values In cases where there are multiple parameters shown...

Страница 46: ...here are four menu trees used to control the RCS20 CONFIG SWITCH CONFIG SYSTEM MONITOR ALARMS and TEST These menu trees are shown in flowchart form in Figures 3 2 to 3 5 Each block in a menu tree flow...

Страница 47: ...RCS20 M N Redundancy Switch User Interfaces TM056 Rev 2 3 4 9 Figure 4 2...

Страница 48: ...User Interfaces RCS20 M N Redundancy Switch 4 10 TM056 Rev 2 3 Figure 4 3...

Страница 49: ...RCS20 M N Redundancy Switch User Interfaces TM056 Rev 2 3 4 11 Figure 4 4...

Страница 50: ...te is conveyed as mark space information with two marks comprising the stop data When the last byte of data is transmitted a hold comprises one steady mark the last stop bit To begin or resume data tr...

Страница 51: ...sence or absence of errors within the message In a message block with the following parameters the checksum is computed as shown below in Table 4 4 Table 4 4 Checksum Calculation Example BYTE FIELD DA...

Страница 52: ...nt is lost then the message originator usually the M C computer re transmits the original command packet with the same FSN The destination device detects the same FSN and recognizes that the message i...

Страница 53: ...ters status or internal timing differs they will both attempt to respond to the override simultaneously with different information or asynchronously in their respective message packets and response pa...

Страница 54: ...un time software It is also advantageous to consider the use of multiple bus systems where warranted by a moderate to large equipment complement Therefore if a DMD15 Modulator is queried for its equip...

Страница 55: ...tocol that automatically re transmits a packet when an error is detected or when an acknowledgment response packet is absent During transmission the protocol wrapper surrounds the actual data to form...

Страница 56: ...tch Backup Mode 2004h Query Switch Expansion Module Config 2005h Query Reference Distribution Configuration 2010h Query Switch Time 240Eh Query Switch Date 240Fh Query Switch Time and Date 2410h Comma...

Страница 57: ...8 Channel 9 Modem 9 Backup 2 4 7 10 Detailed Command Descriptions Refer to Appendix A 4 8 Ethernet Port User Interface The Ethernet Port of the DM240 allows for complete control and monitoring of all...

Страница 58: ...User Interfaces RCS20 M N Redundancy Switch 4 20 TM056 Rev 2 3...

Страница 59: ...ctions All RCS20 connections are made to labeled connectors located on the rear of the unit Any connection interfacing to the RCS20 must be the appropriate mating connector Refer to Figures 5 1 throug...

Страница 60: ...Electrical Interfaces RCS20 M N Redundancy Switch 5 2 TM056 Rev 2 3 Figure 5 2 IFS20 Rear Panel Connectors...

Страница 61: ...RCS20 M N Redundancy Switch Electrical Interfaces TM056 Rev 2 3 5 3 Figure 5 3 IFS20 Chassis Base...

Страница 62: ...Electrical Interfaces RCS20 M N Redundancy Switch 5 4 TM056 Rev 2 3 Figure 5 4 DDS20 Front and Rear Panels...

Страница 63: ...RCS20 M N Redundancy Switch Electrical Interfaces TM056 Rev 2 3 5 5 Figure 5 5 Rear Panel Interface Data Switch Module DDS20...

Страница 64: ...Electrical Interfaces RCS20 M N Redundancy Switch 5 6 TM056 Rev 2 3 Figure 5 6 RCS20 Cabling and Interconnection Diagram...

Страница 65: ...nd Synchronous RS 422 V 35 interfaces located on the Digital Data Switch DDS20 AS 3356 G 703 Unbalanced DIP Switch Settings AS 3356 G 703 Balanced DIP Switch Settings AS 3356 ALL SYNC RS422 V 35 DIP S...

Страница 66: ...Interfaces RCS20 M N Redundancy Switch 5 8 TM056 Rev 2 3 AS 3478 G 703 Balanced DIP Switch Settings AS 3478 G 703 Balanced DIP Switch Settings 1 ON 1 OFF 2 ON 2 OFF 3 ON 3 OFF 4 ON 4 OFF 5 ON 5 OFF 6...

Страница 67: ...In J3 is the Unbalanced Insert Data In IDI BNC connector located on the Universal Interface Module 5 2 4 J4 RD Receive Data J4 is the Unbalanced Receive Data RD BNC connector located on the Universal...

Страница 68: ...o Connection None 8 RXD B Receive Data B RS485 Output 9 RXD A Receive Data A RS485 Output Table 5 8 J7 ESC Alarm Interface 25 Pin Female D Pin Number Signal Description Direction 1 GND Ground None 2 E...

Страница 69: ...No Connect None J8 ESC 8K Data Interface J8 is the 15 pin ESC IDR 8 Kilobit overhead data connector The pinouts are shown below Table 5 9 J8 ESC 8K Data Interface 15 Pin Female D Connector Pin No Sign...

Страница 70: ...Insert Data In A EXC A IDI A Input 6 Insert Data In B ESC B IDI B Input J10 Sync Data J10 is the 37 pin synchronous data connector located on the Universal Interface Module The pinouts are shown belo...

Страница 71: ...nector J1 through J10 are the 68 Pin high density data connectors that carry data to and from the modem The pinouts for these connectors are shown below in Table 5 12 Table 5 12 J18 Switch Connector 6...

Страница 72: ...Open Collector Output Output Open Collector 22 ES RXD A IBS ES Receive Data Output A Output 23 ES DSR IBS ES Data Set Ready RS232 Only Output 24 ESCTXC A IDR ESC Transmit 8 Kbps Output Clock Output 2...

Страница 73: ...2B IDR ESC Audio Input Channel 2B Input 51 ESCAUDRX 1B IDR ESC Audio Output Channel 1B Output 52 ESCAUDRX 2B IDR ESC Audio Output Channel 2B Output 53 ESCBWI 4 IDR ESC Backward Alarm Input 4 54 TX B...

Страница 74: ...None 2 MJA C Major Alarm C None 3 MJA NO Major Alarm NO None 4 NC No Connect None 5 NC No Connect None 6 NC No Connect None 7 MNA NC Minor Alarm NC None 8 MNA C Minor Alarm C None 9 MNA NO Minor Alarm...

Страница 75: ...Connect None 5 COMMON Signal Common None 6 TxD A Transmit Data A Output 7 NC No Connect None 8 RxD B Receive Data B Input 9 RxD A Receive Data A Input Table 5 16 J3 Switch Interface Control Card RS23...

Страница 76: ...C_RELAY Relay 6 Volts Output 8 VCC_RELAY Relay 6 Volts Output 9 GND Ground None 10 GND Ground None 11 VCC_RELAY Relay 6 Volts Output 12 DDS_LDAT1 Serial Control Data 1 Bi directional 13 GND Ground Non...

Страница 77: ...ion Direction 1 TxD B RS485 HDLC Transmit Data B Output 2 TCLK A HDLC Transmit Clock A Output 3 TCLK B HDLC Transmit Clock B Output 4 RCLK A HDLC Receive Clock A Input 5 COMMON Signal Common None 6 Tx...

Страница 78: ...6 VCC Logic 5 Volts Input 7 VCC_RELAY Relay 6 Volts Input 8 NC No Connect None 9 NC No Connect None 10 GND Ground None 11 VCC_RELAY Relay 6 Volts Output 12 IFS_LDAT1 Serial Control Data 1 Bi direction...

Страница 79: ...sic user checks include checking the power line fuses and the various cables and connectors 6 1 1 Checking the Cabling and Connectors Problems that appear difficult to solve can often be traced to a l...

Страница 80: ...larms indicate that failure conditions that result in loss of service on one or more primary satellite channels A major alarm may be caused by an internal switch hardware failure by failure of one or...

Страница 81: ...position PS1 is missing or not fully seated PS 1 VOLTAGE The slide in power supply module in position PS1 is supplying the incorrect voltage PS 2 PRESENT The slide in power supply module in position P...

Страница 82: ...If an alarm occurs the alarm condition will be stored even if the condition causing the alarm ceases Latched alarms can be displayed and cleared from the Front Panel the Terminal Port or the Remote Po...

Страница 83: ...returned to the user at no charge the user pays only the freight charge to the factory If the equipment is out of warranty it will be promptly repaired The customer will be charged for repairs and re...

Страница 84: ...Maintenance RCS20 M N Redundancy Switch 6 6 TM056 Rev 2 3...

Страница 85: ...Modulator Switch Delay Time 0 0 sec to 299 9 sec 0 1 sec steps Demodulator Switch Delay Time 0 0 sec to 299 9 sec 0 1 sec steps IF Switching Coaxial 75O 50O optional 20 dB return loss Tx Insertion Los...

Страница 86: ...e Power 100 240 VAC 50 60 Hz 65 Watts Operating Temp 0 to 50 C 95 humidity non condensing Storage Temp 20 to 70 degrees C 99 humidity non condensing 7 5 Physical Size RCU20 19 W x 19 D x 5 25 H IFS20...

Страница 87: ...regard the parameters at the end of the Non Volatile Section and index to the start of the Volatile Section Before creating any software based on the information contained in this document contact the...

Страница 88: ...hannel not a backup channel or this channel is a backup channel but currently not backing up a mod 1 9 This channel currently backing up a mod channel number as indicated 0 This channel not a backup c...

Страница 89: ...e expansion 0 no alarm 1 alarm 0 No hot standby for backup 1 mod Channel number 1 to 9 0 No hot standby for backup 1 Demod Channel number 1 to 8 0 No hot standby for backup 2 mod or channel 9 not conf...

Страница 90: ...lator 0 not assigned 1 assigned Channel 0 Modulator backup priority 0 9 Channel 0 Demodulator backup priority 0 9 0 Switch Mod and Demod separately 1 Switch Mod and Demod together Note These 10 bytes...

Страница 91: ...Channel number for manual backup 1 to 9 Demodulator Backup ignored if in automatic mode 0 Backup modem 1 Preemptable prime modem 2 Prime Modem 0 Manual 1 Automatic non revertive 2 Automatic revertive...

Страница 92: ...is channel is a backup channel but currently not backing up a mod 1 9 This channel currently backing up a mod channel number as indicated 0 This channel not a backup channel or this channel is a backu...

Страница 93: ...no alarm 1 alarm Channel number 1 to 9 0 No hot standby for backup 1 mod Channel number 1 to 9 0 No hot standby for backup 1 Demod Channel number 1 to 8 0 No hot standby for backup 2 mod or channel 9...

Страница 94: ...se 1 1 1 1 1 1 1 Number of Expansion Slots Slot 0 Expansion Card Type Slot 1 Expansion Card Type Slot 2 Expansion Card Type Slot 3 Expansion Card Type Slot 4 Expansion Card Type Slot 5 Expansion Card...

Страница 95: ...lock with variable number of bytes sync byte source address destination address Opcode byte count data field and checksum Contents of Response Packet Data Field dependent upon message relayed to modem...

Страница 96: ...is demodulator 0 not assigned 1 assigned Channel 0 Modulator backup priority 0 to 9 Channel 0 Demodulator backup priority 0 to 9 0 Switch Mod and Demod separately 1 Switch Mod and Demod together Note...

Страница 97: ...em 2 prime modem 0 manual 1 automatic non revertive 2 automatic revertive Channel number for manual backup 1 to 8 Modulator Backup ignored if in automatic mode or if channel 9 is configured as prime C...

Страница 98: ...up is desired for either backup channel 3 Command will return an error if trying to force a backup for a backup channel not configured in manual backup mode Opcode 2010h Query RCS20 Reference Distribu...

Страница 99: ...or the FDM to be configured 0 External A Only 1 Internal Only 2 Ext A Int 3 Int Ext A 4 Ext A Ext B 5 Ext A Ext B Int 6 Int Ext A Ext B 0 10 MHz 1 5 MHz 2 2 5 MHz 3 1 25 MHz Opcode 2C04h Command set t...

Страница 100: ...Appendix A RCS20 M N Redundancy Switch A 14 TM056 Rev 2 3...

Страница 101: ...document s and paragraph reference Deviations any deviations from the coding standard Revision History adapted from 3030 3030L usermib ________________________________________________________________...

Страница 102: ...s 4 radSymbolRate OBJECT TYPE SYNTAX INTEGER 0 68000000 ACCESS read write STATUS current DESCRIPTION Selects the symbol rate in sps radSNMP_Mod_NV_Status 5 radSymbolRateMode OBJECT TYPE SYNTAX INTEGER...

Страница 103: ...erface options must use SCTE at all times radSNMP_Mod_NV_Status 9 radFramingMode OBJECT TYPE SYNTAX INTEGER framing_DirecTv 4 ACCESS read write STATUS current DESCRIPTION Selects the frame transport s...

Страница 104: ...ace types Parallel DVB Parallel M2P Serial DirecTv or HSSI will force the outclock selection to SCT Selecting interface type ASI Norm or ASI Null causes the outclock selection to be forced to None rad...

Страница 105: ...vb 0 ACCESS read write STATUS optional DESCRIPTION Selects framing type Reserved radSNMP_Mod_NV_Status 19 radReedsolomon OBJECT TYPE SYNTAX INTEGER disable 0 enable 1 ACCESS read write STATUS current...

Страница 106: ...rent DESCRIPTION Major Alarm mask Bit 1 Oversample Clock PLL Lock Bit 2 FPGA Configuration Error Bit 3 Synthesis Clock PLL Lock Bit 4 External Reference PLL Lock radSNMP_Mod_NV_Status 25 radMinorAlarm...

Страница 107: ...a double sideband output offset causes a single side band output posfir uses a positive FIR negfir uses a negative FIR radSNMP_Mod_NV_Status 29 radCircuitID OBJECT TYPE SYNTAX OCTET STRING SIZE 11 AC...

Страница 108: ...tput from the Terrestrial Interface See the Clock Source Selection Matrix radSNMP_Mod_NV_Status 34 radLastRateControl OBJECT TYPE SYNTAX INTEGER symbol 0 data 1 auto 2 ACCESS read write STATUS current...

Страница 109: ...m Bit 2 5V alarm radSNMP_Mod_Status 3 radLatchedMajorAlarmStatus OBJECT TYPE SYNTAX INTEGER 0 255 ACCESS read only STATUS current DESCRIPTION Major Alarm latched status A bit field 0 PASS 1 FAIL Bit 1...

Страница 110: ...us 8 radPlus12Volts OBJECT TYPE SYNTAX INTEGER 0 255 ACCESS read only STATUS current DESCRIPTION 12V monitor with implied decimal point For example a value of 119 represents 11 9 Volts radSNMP_Mod_Sta...

Страница 111: ...SI Interface Present Bit 8 DSS Option Enabled Bit 9 SNMP Option Enabled Bit 10 Parallel DVB Present Bit 11 Parallel M2P Present Bit 12 DVB LVDS Present Bit 13 OC3 Interface Present Bit 14 15 Spares un...

Страница 112: ...Appendix B RCS20 M N Redundancy Switch B 12 TM056 Rev 2 3...

Страница 113: ...grated Circuit ATE Automatic Test Equipment B BER Bit Error Rate BERT Bit Error Rate Test Bit BIT Binary Digit or Built In Test BITE Built In Test Equipment bps Bits Per Second BPSK Binary Phase Shift...

Страница 114: ...and Insert E Eb N0 Ratio of Energy per bit to Noise Power Density in a 1 Hz Bandwidth EEPROM Electrically Erasable Programmable Read Only Memory EIA Electronic Industries Association EMI Electromagne...

Страница 115: ...International Electrical and Electronic Engineers IESS INTELSAT Earth Station Standards IF Intermediate Frequency INTELSAT International Telecommunication Satellite Organization ISO International Sta...

Страница 116: ...Modulated ms Millisecond M C Monitor and Control N NC Normally Closed NO Normally Open ns Nanoseconds NVRAM Non Volatile Random Access Memory N C No Connection or Not Connected O OQPSK Offset Quadrat...

Страница 117: ...d error correcting codes with a wide range of applications in digital communications and storage S SEQ Sequential SYNC Synchronize T TBD To Be Designed or To Be Determined TM Technical Manual TPC Turb...

Страница 118: ...Glossary RCS20 M N Redundancy Switch G 6 TM056 Rev 2 3 W X Y Z W Watt Misc s Microsecond O Ohms 16QAM 16 Quadrature Amplitude Modulation 8PSK 8 Phase Shift Keying...

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