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Страница 1: ...2246R REMOTE STANDALONE WORKSTATION 03 0089 III D 3 CUSTOMER ENGINEERING DIVISION Preliminary Hardware Manual 2246R Remote Standalone Workstation WLI Part Number 177 22VS 57 August 1 1979 WANG REORDER...

Страница 2: ...wing address Wang Laboratories Inc Customer Engineering Division Dept 113 Technical Writing Group Mail Stop 4212 One Industrial Avenue Lowell MA 01851 This document is the property of Wang laboratorie...

Страница 3: ...the associated 210 7427 TC OP Oaughterboard to E REV level 1 Both CSNL s must be incorporated in order to obtain full communications between the VS CPU and the 2246R Remote Workstation In addition not...

Страница 4: ...tion CPU 210 7156 Power Supply Regulators 210 7456 CRT Monitor Electronics Functional Description Section 2 Site Preparation General Selecting a Location Environmental Considerations Temperature Consi...

Страница 5: ...sational Reply Reverse Interrupt Timeouts Error Recovery Device Protocol Host Program Host Controller Interchanges Loading Host Controller Microcode Loading Polling List Host Program Remote Controller...

Страница 6: ...Processor 210 7478 TC Memory Board z8o cpu Input Output Architecture Counter Timer Circuit CTC Serial Input Output SIO Clock Mode Register CMR Direct Memory Addressing CDMA DMA Request Lines DRQ 0 Th...

Страница 7: ...General Section 10 Adjustments General DC Voltage Adjustments Video Display Adjustments Brightness ADjustment Vertical Linearity Adjustment Vertical Size Adjustment Horizontal Width Adjustment Horizon...

Страница 8: ...ta Sets 201C Data Set End to End Self Test 2 Wire Data Set Data Set 208B Self Tests 208B Data Set Switch Buttons 208B Data Set Status Indicators Dataphone Testing with the 208B Data Set 208B Data Set...

Страница 9: ...ndshaking for LOAD DEVICE Command Sequence Data Link Handshaking for START DEVICE Command Sequence Data Link Handshaking for ws WRITE Command Sequence 03 0089 1 5 1 5 1 6 1 6 1 8 1 10 1 11 1 12 1 14 3...

Страница 10: ...Board DLP Block Diagram Sheet 2 7 3 7 2 OLP Memory Organization for the Single Site Remote Workstation 7 10 7 3 Read Sequence of L44 User Option Switches on TC Memory Board 7 13 7 4 Workstation Statu...

Страница 11: ...te Site 5 3 Data Link Sequences Transmitted by Host Controller 5 4 Message Formats for Input Messages Passed to Host Controller by Remote Devices 5 6 Message Formats for Compressed Data Messages 5 7 V...

Страница 12: ......

Страница 13: ...ther ordering identification information are included within parentheses following the title Table 1 2 lists Bell System Reference documents pertaining to both general and specific Bell manufactured e...

Страница 14: ...ions Data Sheet Telecommunications Marketing Guide Telecommunications Sales Guide Teletype Emulator Data Sheet Burroughs Emulator DBta Sheet 2741 Emulator Data Sheet HASP Multileaving Data Sheet 3741...

Страница 15: ...uring Techniques Digital Data System Channel Interface Specifi cation Data Set 103A Interface Specification Data Set 103A3 Data Set 103E Data Set 103G Data Set 103H Interface Specification Data Set 10...

Страница 16: ...ices or discrete components The following subparagraphs identify the major assem blies of the Remote Workstation 1 3 1 CRT ASSEMBLY The workstation CRT and associated electronics are standard Wang ass...

Страница 17: ...MODEL 2246R REMOTE STANDALONE WORKSTATION Section 1 Introduction Figure 1 1 2246R Remote Workstation Front View Figure 1 2 2246R Remote Workstation Rear View 1 5 03 0089 r...

Страница 18: ...2246R REM lTE STANDAIDNE RKSTATION Section 1 Introduction 03 0089 Figure 1 3 Interior Assemblies of the 2246R Remote Workstation Rear View Figure 1 4 Location of 210 7456 CRT Monitor Electronics Boar...

Страница 19: ...own in Figure 1 5 on E REV 0 boards L95 on E REV 1 boards with a special Diagnostics Test 2K PROM that contains firmware subroutines for ch ecking out the operational integrity of key Remote Workstati...

Страница 20: ...1 1 t i I 11 L r Q J r rc I J I k 4 I L_ _ a Jt _ _ Iii i f iH r A t t 1111 1 I 0 I I t Figure 1 5 210 7478 TC Memory Board DLP I I I f I 0 lf 0 0 X 0...

Страница 21: ...mory board It contains a program readable 8 pole switchbank in the middle of the bottom row but the current Operating System firmware does not make use of the switch output signals The board also cont...

Страница 22: ...Figure 1 6 I I I I I u 210 7479 Enhanced Workstation Processor Board WP 0 lj 0 0 CX 0...

Страница 23: ...MODEL 2246R REMOTE STANDALONE IDRKS TATION Section 1 Introduction 1 1 P L f __ d T I _ l t L i _ i 1 l F t 1 Figure 1 7 210 7156 Power Supply Regulators Board 1 11 03 0089...

Страница 24: ...MODEL 2246R REMOTE STANDALONE WORKSTATION Section 1 Introduction Figure 1 8 210 7456 CRT Monitor Electronics Board 1 12 03 0089...

Страница 25: ...this unit eliminates the need to install an entire cluster control ler at each remote location at which only one terminal and possibly a printer is required Remote workstations may be used either in a...

Страница 26: ...ordered The 22V06 1 IOP supports one com munications line the 22V06 2 IOP supports two communications lines and the 22V06 3 IOP supports thr0e communications lines 2 The number or 22V06 IOP s that are...

Страница 27: ......

Страница 28: ...ssociated parallel printer if applicable The fol lowing paragraphs describe the ideal environment in which a Telecommunications System should operate and the preparations necessary to meet the basic s...

Страница 29: ...90 F Low outside temperatures are usually not a problem because most locations never fall below the minimum temperature limit even with air conditioning If the system is used where temperatures go hig...

Страница 30: ...ic charge build up Carpets treated with non static spray should be thoroughly cleaned before the first treatment and they should be retreated at least once every three months thereafter If an electric...

Страница 31: ...etermined before a solution is proposed EM can enter the Telecommunica tions System by conduction along wiring and cabling or by direct radiation If EM sources including office machines air conditioni...

Страница 32: ......

Страница 33: ...ners the INSTAPAK forms are ideal for any return ship ment to Wang Laboratories that might be re quired because of damage or malfunction INCOMING INSPECTION 1 Unpack and inspect each unit for possible...

Страница 34: ...up and tilting it to the left for access to and disconnection of both fan cable and CRT brightness control cable BRIGHTNESS POTENTIOM TEI CONTRAST POT NTlOKE l EI OUTLINE PERIMETER OF W S CIT rl S COV...

Страница 35: ...I I...

Страница 36: ...er has ordered a correct modem and applicable options either from a local telephone company or from a private vendcr For incorpora tion of different options into specific modems refer to requirements...

Страница 37: ...d connected to an applicable system end modem with the followiag updates in place a The 210 7 26 TC IOP Motherboard must be updated with new firm ware as follows 1 PROM release 378 4049R1 in logic chi...

Страница 38: ...age 3V to 25V 3V to 25V Table 4 1 lists RS 232 C 25 pin connector pin assignments giving both EIA and CCITT designations for the circuit associated with each pin That table also includes standard sign...

Страница 39: ...2 109 120 122 121 118 114 119 115 124 120 108 2 110 125 111I1 12 11 SIGNAL DESCRIPTION Protective Ground Transmitted Data Received Data Request to Send Clear to Send Data set Ready Signal Ground Recei...

Страница 40: ...the modem con nector labeled CUSTOMER EQUIPMENT refer to Figure 4 1 lower right hand corner 3 4 If a parallel printer is to be included at the given site plug the free end of its interconnection cable...

Страница 41: ...I 2246R I I MODEM I I REMOTE I I DCE I STANDALONE I 1 1 I WORKSTATION I 1 1 Figure 4 1 Representative Remote Multipoint Interface To VS System 1 1 I VS CPU I I MAINFRAME I 1 1 1 1 I 22V06 I IOP I 1 1...

Страница 42: ...e 2228N Null Modem assembly and then connect the other end of that same cable to the Remote Workstation s RS 232 C 25 pin connector lo cated in lower right hand corner on rear base panel 3 If a parall...

Страница 43: ...ithout Alternate Voice New Sync Used C6 New Sync Not Used Half Duplex 2 wire D7 Full Duplex 4 wire 4 wire Continous Carrier 4 wire Carrier Controlled 4 8 COMMENTS This option is required for operation...

Страница 44: ...nterface Pin 18 Initiates Local Analog Loopback 10 EIA Interface Pin 18 Provides RECEIVE SYMBOL CLOCK 11 Factory Furnished EIA Interface and Ground Options 12 Customer Selected EIA Interface and Groun...

Страница 45: ...External 3 Automatic Answer Not Provided 4 Automatic Answer Controlled by Data Term nal Ready DTR 5 Ring Indicator on EIA Interface Pin 22 6 Ring Indicator Contact Closure on EIA Interface Pins 22 and...

Страница 46: ...OPTION REQUIREMENT WITH 2246R A1 83 C6 6 Continuous REQUEST TO SEND 7 One Second Holdover Is Used 8 One Second Holdover Not Used 9 New Sync Is Used 10 New Sync Not Used 11 DATA SET READY CC Lead On i...

Страница 47: ...er Timing External 3 Without 801 Automatic Calling Unit 4 With 801 Automatic Calling Unit 5 DATA SET READY CC Off When AL Pressed 6 DATA SET READY CC ON When AL Pressed 7 Without Automatic Answer 8 Wi...

Страница 48: ...A SET READY Inter face Lead Off in Analog Loopback Mode 5 Transmit Timing Slaved to Receive Timing 6 Transmit Timing Is Not Slaved to Receive Timing 7 Elastic In 8 Elastic Out 9 Continous Carrier Deci...

Страница 49: ...ons 6 Customer Selected EIA Interface and Ground Options 7 Factory Supplied Dual Mode OPTION REQUIREMENT WITH 2246R A1 B3 C5 D8 8 Customer Selected Modes Of Operation 9 Make Busy Analog Loop CN Circui...

Страница 50: ...ct Interface 3 Call Terminated Via ACU After Data Set Status DSS On 4 Call Terminated Via Data Set After Data Set Status DSS On s Abandon Call and Retry ACR Timer Is Stopped After DSS On 6 Abandon Cal...

Страница 51: ...ire network B 3 Call Terminated 84 Through ACU 4 Call Terminated Via Data Set After Data Set Status DSS On c 5 Abandon Call and Retry C5 ACR Timer Stopped After Data Set Status On 6 Abandon Call and R...

Страница 52: ...RS 232 C Interface 5 With Associated Telephone Set 6 Without Associated Telephone Set 7 Coupler Controls Line B Telephone Set Controls Line 9 Ringer Connected On Telephone Set Side of Exclusiion Key...

Страница 53: ...ings 6 Ringer Connected On Line Side or Exclu ion Key Both DAA Ring Indicator and Tele phone Ring 7 Ringer Connected On Telephone Set Side of Exclusion Key If Exclusion Key Is Down Only Telephone Ring...

Страница 54: ...I 1 I...

Страница 55: ...all standard transmission speeds up to 9600 bits second Dev ce protocol messages are blocked for transmission using data link es cape OLE end of intermediate transmission block ITB separation and con...

Страница 56: ...s data link sequences defined in Tables 5 2 and 5 3 The sequences follow multipoint bisync conventions with the host play ing the primary role and the remote playing the secondary role The data link i...

Страница 57: ...receiving a poll sequence containing its site address as defined by the five low order bits of the device options switches on the applicable remote controller board L44 on the 210 7478 TC Memory boar...

Страница 58: ...s a WACK sequence requesting an affirmative acknowl edgement TTD transmit flow control is not used When a transmitter in the host controller or any remote controller receives an affirmative acknowledg...

Страница 59: ...ssion of the same message block 5 3 DEVICE PROTOCOL The device protocol employs the messages defined in Tables 5 4 and 5 5 using the notation defined in Table 5 1 This protocol uses the same standard...

Страница 60: ...st controller s data link processor s memory at the current ad dress maintained as a state variable by the bus pPocessor portion ot the host controller Initially the current address value is zero When...

Страница 61: ...program loads a piece of microcode into a Remote Workstation by means of a CONTROL I O vs LOAD DEVICE command The data area pointed to by that command contains a memory image of the desired device mi...

Страница 62: ...anism normally transmits the message to the host controller as a bicync conversational reply The host controller extracts a VS IOSW from that message and then passes the IOSW data to the host program...

Страница 63: ...sage and then passes the IOSW data to the host program thereby completing the command 5 3 3 HOST PROGRAM REMOTE DEVICE INTERCHANGES 5 3 3 1 Host Initiated Commands to Remote Workstations 5 3 3 1 1 Wor...

Страница 64: ...efer to Table 5 5 The remote controller s link protocol mechanism normally transmits the messages to the host controller as a bisync conversational reply When this reply is received the host controlle...

Страница 65: ...tional reply to the host control ler Upon receipt of that message the host controller extracts a VS IOSW from the message data and then passes the IOSW data to the host program thereby completing the...

Страница 66: ...reply The host controller then extracts a VS IOSW from the message and passes that IOSW data to the host program thereby completing the command 5 3 3 1 4 Workstation READ Command The host controller...

Страница 67: ...l mechanism normally transmits these messages to the host controller as a bisync conversational reply Upon re ceipt of these messages the host controller extracts a VS IOSW from the sup plied data and...

Страница 68: ...DIAGNOSTIC data message The status reply is packaged either as a device completion status message or as a completion double sta tus message For format details of these input messages refer to Table 5...

Страница 69: ...When the host controller s link protocol mechanism transmits these mes sages normally blocked together the applicable remote controller at the re mote site passes them to the addressed remote device...

Страница 70: ...fields having a modified field bit that is not set for transmission in contiguous compressed data format For format details refer to Table 5 4 REMOTE CONTROLLER ACTIVITY c 1ACK J sequence la cc ws REA...

Страница 71: ...records Figure 5 11 diagrams typical data link hand shaking activity for the printer WRITE command sequence REMOTE CONTROLLER ACTIVITY HOST CONTROLLER ACTIVITY select sequence ACKO sequence printer WR...

Страница 72: ...nd queued for transmission either as a device completion status message or as a completion double status message For format details refer to Table 5 5 The remote controller s link protocol mechanism n...

Страница 73: ...rt an outstanding command by issuing a HALT I O command Upon receipt of that command the host controller creates a HALTI01 message and queues that message for transmission The remote link protocol mec...

Страница 74: ...l representation of a nibble string The convention as to the order of transmission reception is as follows character string bit string nibble string character nibble leftmost character first rightmost...

Страница 75: ...I 11 z 11 11 F CT se u nce I FN s qu nce I NAK sequence I ACKO sequence I CK1 sequence I WAC spquence I text bloc SYN llj EuT X ff SYN 4 ENO X FF SJN ij NAK x rr SYNl16J OLE X 70 X Ff SYNl16J OLE X 6...

Страница 76: ...l sequence I select seqaence I ACKC sequence I ACK1 sequence I VACK sequence I Ulql F CT X lf 1 u 141 u l H Ullfl ite ddtess x rr X 11 uo X FF I i ltillf t lte address or t address deY1ce address EIO...

Страница 77: ...der X OJ header X OJ header X OJ header X Oii header ll Oq header X Oii header X OS LOAD DEVICE iocv START DEVICE iocv printer WRITE iocv vs WRITE iocv vs WRITE DIAGNOSTIC iocv vs WRITE TABS iocv vs W...

Страница 78: ...I vs READ DIAG OSTIC data I vs MEAD TABS data I vs BEAD ALTERED date address header 06 device coa letion loav 1 z address heade1 1 06 load co plete ioav address header l 06 load error iosv address hea...

Страница 79: ...byt re eated n t1 eL disjoint coapr s d dat d coapr s ed strino n t 1u1 strino brte re ated n t1 e skip n lJJU s n hyt 1 r rir o I tirtt repeated n tiaes li O n 1 cata bytt lnl l 1 n 1 Cl at a ti r t...

Страница 80: ...ata area length l xx 10 21 X AO I X A2 data area address data area length l xx I0 21 I I X EO X xx I0 11 x 60 x e2 data area address data area length x xx 10 21 X 118 X 8A data area address data area...

Страница 81: ...I I...

Страница 82: ...C IOP assembly in the VS CPU mainframe that may differ from equivalent values that will appear on the CRT screen when you perform this same proce dure In addition these printouts include a screen edge...

Страница 83: ...Lor 1 II Control S rSTE M rAIU o r JJ nH r 1 M AMf r 1111 m l rri rH JPE llro r r 1 1a E d I J l J 1 C 3 s 8 J C J 1 C 4 ll t tll 111111 I 1 Ci 1 4 ll I 1 1 O 1 1Ijtf 1 4 1111 f ii 1 ff dr l o 1 l 11...

Страница 84: ...dem at the remote site and establish contact with appropriate operator personnel in that area Explain that you are initializing the 2246R Remote Workstation at that site and direct the person at that...

Страница 85: ...Y 1 IC y 7 I 2 7il I C J oos G 78 lli Yo 78 123 5 t 7 0 4 Figure 6 3 REMOTE DEVICES Control Presentation a I i 3 S i 7 8 12 1 I c ts 78 12 tS 1a o123 tS 1a J li 3 oY 78 30 Ii 3 5 078 7J IC t 5 78 J l...

Страница 86: ...ote site should become activated producing a normal LOGIN solicitation on its screen From that point on display and entry performance of that 2246R Remote Workstation should be identical to display an...

Страница 87: ...ntation Following Completion of CLUSTER PORT rtnd DEVICE ON PORT Assignments I 2 3 5 G 7 8 12 or 1 12 3 SE 7B 1o l2J o c 1a 12 12y c 1a 0 l23 tS 7a 70123 5 10 toJ12 s 1a v a 1 2 3 6 1 a 3 10 1 2 3 s a...

Страница 88: ...I I I...

Страница 89: ...P logic exploits the functional capabilities of the Z80 CPU chip together with its companion CTC SID and OMA microelectronic devices while providing suf ficient memory and a modem interface capable of...

Страница 90: ...L t I AU 0 AU I L llC el D L D t I I l I L I a E 111 AU 0 12 l lf lb l 9 llT lt t It llt 16 1 an r un o r mr 1n L1 A __ to fl 1 A I Sll 9 __ T1 DATA tU v 00 DI TD PAAITI C Cllll UI LCll H A L l t Ja...

Страница 91: ...llUS D TTI L TCllES DO CLOCl C KOOE llX ISTlll l l 7 r ADDIllSS SJS I CHl 19 l J8 l i h I h J l l CA CHll t TllIM HODD CHJ 1 TI f JI rrc CHAKNEL 1 J lO us vrRo f SOll I HOOD I I L Figure 7 2 210 7478...

Страница 92: ...ess data and status bus lines into the high impeda nce state so that an outside device may use these buses An associated BUSAK BUS AKnowledge output goes active when the CPU has complied with this req...

Страница 93: ...bit 9 for the L7 RAM parity 9 bit odd even generator checker In addition L46 de codes A 4 through A 6 to generate the I O port addresses 7 2 2 INPUT OUTPUT ARCHITECTURE The OLP I O architecture is co...

Страница 94: ...gister X 23 CTC Channel 3 Control Register CTC Channel 3 Status Register X 30 ACU Control Signal Register ACU Status Signals X1 40 1 Internal Clock Enable Re ister User 0 tion Switches X 50 Signal Bus...

Страница 95: ...RCE SIGNAL S_I_O C_h_a_n_n_e_l_A C_A_R_R_I_E_R DE_T_E_C_T Modem pin 8 SIO Channel A RECEIVE CLOCK Determined by SIO Channel A RECEIVE DATA Modem pin 3 DATA TERMINAL READY Modem pin 20 SIO Channel B RE...

Страница 96: ...iated channel These two bits are not mod ified during a OMA cycle but they can be changed between OMA blocks In gen eral however a value of n 1 where the number or desired OMA cycles must be loaded in...

Страница 97: ...rkstation Status register conversely the data outputs from the appli cable circuit is sent to the CPU over this same data bus During OMA cycles when the 8257 chip is the bus master the 8257 chip outpu...

Страница 98: ...ips or 2K byte PROM chips Parity checking on RAM is supported Figure 7 2 delineates the DLP memory organization 64K 48K 32K 16K OK WS RAM Note 1 RAM PROM Note 2 NOTES 1 Workstation memory which is ad...

Страница 99: ...of 128 rows and then subsequently uses those same seven lines to select one of 128 columns in that selected row 1 2 9 2 Multiplex Timing Considerations Although address multiplexing provides some very...

Страница 100: ...cells and to maintain the sensed data from the entire row of addressed memory cells in their respective sense amplifiers The sense amplifiers maintain this data as long as RAS remains active At the en...

Страница 101: ...ble user options The switch settings are read into the Z80 accumulator as shown in Figure 7 3 7 2 11 VS SINGLE REMOTE WORKSTATION CONTROLLER The data link processor in the single remote workstation co...

Страница 102: ...ation device type switch 1 I Workstation device type switch 2 Workstation device type switch 3 Workstation device type switch 4 Figure 7 4 Workstation Status Register Readout Format The workstation mo...

Страница 103: ...I I...

Страница 104: ...ENTS RS 232 Loopback Connector see Figure 8 1 8 3 OPERATING PROCEDURE 1 For E REV 011 210 7478 TC Memory boards install a Diagnostics 2K PROM 2716 WLI 378 413 in location L94 in place of the normal op...

Страница 105: ...1 1 CLEAR TO SEND 1051 1181 1 DATA SET READY 1061 1191 1071 1201 DATA TERMINAL READY 1 1 CARRIER 1081 121 I 1091 1221 110 I JUMPER LOCATIONS 1231 Pin to Pin 1 INT CLK SEC REQUEST TO SEND 1111 2 3 1241...

Страница 106: ...ode d Serial Input Output SIO Circuit Internal Loopback Mode e Direct Memory Addressing OMA Fu ction Needs loopback connec tor 8 3 2 SELECTED TEST MODULE MODE TESTING 1 Set the Remote Workstation s po...

Страница 107: ...478 TC Memory board visible through a cutout in the middle of the back surface of the 2246R Remote Workstation cover and as part of a special CRT screen presentation produced during per ormance of the...

Страница 108: ...e status register did not i dicate slave run mode test module 2 Slave CPU not operational test module 2 CTC did not generate an interrupt test module 3 CTC did not generate correct number of interrupt...

Страница 109: ...QQQQQQQQQQQQQ QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSJSSSSSSSSSSSSSSSSSSSSSSS...

Страница 110: ......

Страница 111: ...for proper operation Confirm that fan motor is operating that air is being drawn into left side cabinet vents and that air is being exhausted from right side cabinet vent 2 Dust keyboard and inspect t...

Страница 112: ...I...

Страница 113: ...ts are located on the 210 7156 1 Power Supply Regulator board To check out and or adjust DC voltages in the 2246R Remote Workstation proceed as follows a Turn off 2246R Remote Workstation power b If v...

Страница 114: ...TC Memory board see Figure 10 1 If measurement does not fall within range from 11 9V through 12 1V adjust potentiometer R16 on 210 7156 Power Supply Regulators board refer to Figure 10 2 to bring mea...

Страница 115: ...0 I w ti u ri I I Jo I I I I LJ l J Z 3 12V Figure 10 1 A tOV _i2 SV s2 t2v Test Points on 210 7478 TC Memory hoard 0 w I 0 0 CID...

Страница 116: ...l DEL 2246R REMOTE SI ANDAIDNE WORKSI ATION Section 10 Adjustments J 1 I a Figure 10 2 AdJustrnents an Vo tage Porn s on 210 7156 Power Supply Regulators Board 10 4 03 0089...

Страница 117: ...diaplsy parameters confirm that all DC voltages are within specification as per paragraph 10 2 and then check each adjustment setting described in the following subparagraphs 10 3 1 BRIGHTNESS AND CO...

Страница 118: ...Electronics board for compliance with 3 4 1 4 specification limits 10 3 4 HORIZONTAL WIDTH ADJUSTMENT Confirm that the horizontal width of the CRT raster measures within the range from 7 1 2 through 8...

Страница 119: ...1 0 CD CD 0 1 Q cf 0 0 I I z s 0 0 0 w c to 0 t 1 S Ll s CD TBA 950 UI 0 3 cf z ct tsJ to s 0 cf 0 3 UI 0 iq N en 0 I 0 1 1 I z 0 3 J1 Q4 z O I n 0 c 0 3 ct 0 1 Cl Tl I CD t 1 0 3 to tJj 0 Ill 1 0 0 Q...

Страница 120: ...VOLTAGE TEST POINTS Table 10 1 delineates input voltage pins for all C s used in the telecommunications system circuits Table 10 1 Power Supply Voltage Pins for Telecommunications System C s POWER SUP...

Страница 121: ...being supported all five switches should be left in their factory set OFF position While the uevice type code provided by these switches becomes part of a power turnon message the current DLP firmware...

Страница 122: ......

Страница 123: ...munication Equipment DCE or modem and Data Terminal Equipment DTE i e a 2246R Remote Workstation As il lustrated in Figure 11 1 the ITS 1 test set can be connected 1 to the DCE to sim11late a DTE 2 to...

Страница 124: ...ns 03 0089 Table 11 1 Basic Specifications of the ITS 1 EIA Interface Test Set Level Indicators Activity Indicators TRANSMIT CLOCK TRANSMITTED DATA RECEIVED DATA REQUEST TO SEND CLEAR TO SEND DATA SET...

Страница 125: ...The lower half of the panel also contains positive and negative test indicators Final ly the test set s front panel also contains two sets of 25 jumperconnection pins one set located above the center...

Страница 126: ...e checked by the Diagnostic Test e Check the telecommunications interconnection cable for any bad con tacts Do a continuity check on the cable from one end to the other end making sure all the require...

Страница 127: ...d 7 are chassis ground and reference ground respectively Before examining any true interface signals che k for any noise on the ground circuit Pin 2 TRANSMITTED DATA to data set Data signals on this l...

Страница 128: ...s to 200 ms depending on type of modem and customer options selected e Pin 6 DATA SET READY from data set An 2 2 condition 3V to 25V on this line indicates that the data set is in its Data mode and is...

Страница 129: ...d data circuit For 201A and 201C data sets a timing signal will be present on this circuit while the carrier RECEIVED LINE SIGNAL DETECTOR is on 3V to 25V on pin 8 Pin 20 DATA TERMINAL READY to data s...

Страница 130: ...n of this switch button conditions the data set such that it can be tested remotely from a Telephone Company Data Test Center OTC 5 DL Digital Loopback Depression of this switch button enables dig ita...

Страница 131: ...omer interface during both normal and test modes of opera tion When this indicator is lit the CLEAR TO SEND line is in the on condition and the data set is ready to transmit data 6 CO Carrier On Monit...

Страница 132: ...tained in any test condition the data set has failed the Analog Loopback Self Test 1 Depress the AL and ST switch buttons Requirement All indicators except the MC indicator must become lit during a 30...

Страница 133: ...At the receive end all indicators except the RS CS and MC indicators must become lit If the MC indicator blinks an average of more than twice per minute or remains steadily 2 the source of trouble is...

Страница 134: ...rom entering the Data mode from the Talk mode or upon automatic answer While the Talk mode is not inhibited and calls can be made with the telephone set any attempt to transfer to the Data mode will r...

Страница 135: ...rs The data set s front panel contains seven status indicators Each indi cator lights a poPtion of the front panel to show the name of the control line being monitored The indicators and their functio...

Страница 136: ...it a blinking conditon of this ER in dicator shows that invalid data has been received and that the auto matic equalizer is now retraining A continuous blinking condition of this ER indicator wh le th...

Страница 137: ...nalyze the data set without using external equipment proceed as fol lows NOTE If the specified results are not obtained in any test condition the data set has failed the Analog Loopback Self Test 1 Ch...

Страница 138: ...sults are not obtained for any test condition the system has failed the End to End Self Test procedure 1 Place a call to the far end data set and arr 0nge to perform the End to End Self Test Discuss t...

Страница 139: ...tton on your data set and depressing the DATA switch button on the associated telephone set while the far end operator must depress the RO button on that data set and depress the DATA switch button on...

Страница 140: ...firm whether appropriate conditions were ob served at the far end data set 10 Return the data sets to normal operation as follows a Release the ST switch button at your data set returning the data set...

Страница 141: ...I...

Страница 142: ...MODEL 2246R REMOTE STANDALONE WORKSTATION Section 12 Repair Replacement Procedures 12 1 GENERAL SECTION 12 REPAIR REPLACEMENT PROCEDURES TO BE SUPPLIED 12 1 03 0089...

Страница 143: ......

Страница 144: ...e drawings are arranged in numerical sequence as follows 210 7156 Power Supply Regulator Board Schematic Diagram 210 7456 7456 1 CRT Monitor Board Schematic Diagram Including External Connections to C...

Страница 145: ...c411 CJ 4 ill C 011 z 4f Nj7 10 11LIL 0 SIL 1 1 7 s c n it n U 16 at I 11 ltlO o It11 l O I 1 r 111 r u u l A 61 JJ OCH iM IJ JeS WJr D 37S 14S J JS MS J 37S 1117 l 1 IOP1f 0 3 J3 OO t J 0 Q 2 9 4 IC...

Страница 146: ...11 61 VE T J N A ITY RJ11 C 81 8 cw 7 0 O LI TBA 15 0 IN9t O f 3 I I Cw cu tO I 01 7 r I I 5 3 ff Q 2 OU tl IN TOUUIK 1 1 lA ltU IJI lh HJ Ml I Ml I J I f 1 s c a 2 i __ UlV I l IJ I N rl KE Cl ffi FB...

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Страница 154: ...I...

Страница 155: ...bly Level SECTION 14 BILL OF MATERIAL ASSEMBLY LEVEL 14 1 GENERAL 03 0089 This section contains the assembly level Bill of Materials for the 2246R Remote Workstation delineating the official WLI part...

Страница 156: ...NITOR II PWR SUP ASH II POJF I SUPPLY 11 12 HONITOR PRtLIH PCA 9 12 HONITOR WANG HOH PS RtG 12 CIT POWER SUPLY CABLE 86412 141 12 HONITOR ASH II l ESS PWR SUP PCA 12 MONITOR ELf C EC8l73 BRICHTNf SS P...

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Страница 159: ...SYN Synchronous Idle IBM 2780 CONTROL CHARACTERS EH End of Media SP Space IBM 3780 CONTROL CHARACTERS DCI Device Select Printer DC2 Device Select Punch DCJ Device Select Punch FF Form Feed IGS Interch...

Страница 160: ......

Страница 161: ...of unedited engineering inputs currently being processed to produce CSNL 128 22V06 IOP s 12 referenced in this document as a prerequisite for successful operation of the 2246R Remote Workstation This...

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Страница 175: ...WANG LABORATORIES INC ONE INDUSTRIAL AVENUE LOWELL MASSACHUSETTS 01851 TEL 181714111 000 TWX 710 343 8789 TELEX 14 7421 PRINTED IN U S A...

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Wang 2246R, Руководство по оборудованию

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