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Digi DigiBoard COM/ i Series, Installation Manual

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Digi DigiBoard COM/ i Series Installation Manual Download Page 54

Connecting Peripherals

43

Hardware Handshaking (Ready/Busy)

Figure 26

Terminal/Printer Cable with DTR Handshaking (RJ-45)

RJ-45  -  8  Pin

DB-25  Male

4
5
1
2
3
7

20

Pin

Pin

DSR

RTS

GND

TxD

RxD

SG

CTS

DTR

RTS
CTS
GND
TxD
RxD
SG
DTR

Signal

1
2
3
4
5
6
7
8

Signal

(     Cable Shield)

Some Okidata printers use a control signal on pin 11, called
Supervisory Send Data (SSD) instead of DTR.  In this case,
simply connect CTS on the RJ-45 side to pin 11 of the DB-
25, instead of pin 20.

Other printer manufacturers may use different methods of
flow control.  Consult your printer’s documentation for spe-
cific wiring requirements.

Most terminals and printers use Data Terminal Ready (DTR) for Ready/Busy
hardware handshaking.  The cable shown in Figure 26 supports this method.

Summary of Contents for DigiBoard COM/ i Series

Page 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Page 2: ...Installation Guide DigiBoard PC Xi PC 16e MC Xi and COM Xi Intelligent Asynchronous Serial Communications Boards 90029100B...

Page 3: ...his document is subject to change without notice and does not represent a commitment on the part of DigiBoard DigiBoard provides this document as is without warranty of any kind either ex pressed or i...

Page 4: ...Before you plug in the board 8 Jumper Settings 9 J1 Local Program Memory Size 9 J2 and J3 Dual Ported Memory Size 9 DIP Switch Settings 10 Memory Start Address DS1 Switches 1 8 10 I O Port Address DS...

Page 5: ...rds 35 ALTPIN Modem Wiring RJ 45 Versions 36 Connecting to a DTE Device 37 DB 9 Equipped Boards 37 DB 25 Equipped Boards 39 Software Handshaking XON XOFF 39 Hardware Handshaking Ready Busy 40 RJ 45 Eq...

Page 6: ...485 59 Synchronous Serial Interface PC Xi 61 PC 8i 61 PC 16i 63 Specifications 64 Power Requirements 64 Board Dimensions 66 Environmental 66 Appendix Memory Conflicts 67 Contention for Memory Address...

Page 7: ...45 to DB 25 Modem Cable 10 Wire 36 Figure 20 8 Wire Modem Cable for use with ALTPIN Configuration 37 Figure 21 9 Pin to 25 Pin Null Modem Cable 38 Figure 22 9 Pin Null Modem Cable 39 Figure 23 Simple...

Page 8: ...x Options and Part Numbers 47 Table 8 DB 9 Quad and Octa Cable Options and Part Numbers 49 Table 9 DB 9 Connector Pin Assignments 49 Table 10 RJ 45 Connector Box Options and Part Numbers 50 Table 11 C...

Page 9: ...r television reception which can be determined by turning the equipment off and on the user is encouraged to try and correct the interference by one or more of the following measures Reorient or reloc...

Page 10: ...ircuit board does cause interference to radio or television reception which can be determined by turning your computer OFF and ON the user is encouraged to attempt correction of the interference by on...

Page 11: ...aux appareils num riques de Classe B prescrites dans la norme sur le mat riel brouilleur Appareils num riques NMB 003 dict e par Industrie Canada PC 8i PC 16i PC 16e MC 16i This digital apparatus doe...

Page 12: ...t which occupies a single 16 bit slot see Figure 1 on page 8 The Processor board or motherboard is common to all versions of the PC Xi and contains the 80C186 microprocessor and 128K of dual ported RA...

Page 13: ...i and contains the 80C186 microprocessor and 256K of dual ported RAM The I O mate or daughter card contains the actual interfacing hardware communications chips line drivers and receivers connectors e...

Page 14: ...the COM Xi and contains a 10 MHz 80C188 microprocessor and 256K of dual ported RAM The I O mate or daughter card contains the actual interfacing hardware communications chips line drivers and receiver...

Page 15: ...your computer needed for the board s dual ported memory and UD CISC EXE a diagnostic program which will verify that the board is functioning correctly and help you to identify any hardware problems w...

Page 16: ...ion Tips 5 Figure 1 Installation Flow Chart Run digimmap to map system Choose I O and memory addresses Configure board via DIP switches or POS Run diagnostics Did diagnostics pass Install device drive...

Page 17: ...button or cycle power to reboot reset ting the machine may turn off any adapters that were activated in Step 1 4 Now place the DOS AIO OS 2 and Windows diskette in the diskette drive and enter A DIAG...

Page 18: ...or a slot number the I O and memory addresses will be read from the POS registers Depending on the version of the diagnostic program the other parameters may already be filled in with default values i...

Page 19: ...the board There are three jumpers and two banks of DIP switches which need to be set prior to installing the board in your computer Figure 2 PC Xi Processor Board and 8 Port I O Mate DBI A N 30000624...

Page 20: ...ockets on the left hand end of the board see Figure 2 128K boards have four chips which are shorter than the sockets the chips are oriented toward the center of the board so that four empty pin socket...

Page 21: ...correspond to the size of the board s memory 64K 128K 256K or 512K 64K and 128K boards may be mapped into the area below 1 megabyte above the system RAM and all boards may be mapped into high memory b...

Page 22: ...ds can be reduced to 64K by changing the positions of jumpers on the board See the Appendix starting on page 68 for information on resolving memory conflicts For technical reference switches 1 8 of DS...

Page 23: ...000h 1 2 3 4 5 6 7 8 9 10 11 0D0000h 1 2 3 4 5 6 7 8 9 10 11 0E0000h Notes 090000h 0A0000h 0B0000h 0D0000h and 0E0000h can only be used by PC Xi boards configured for 64K of dual ported memory 080000h...

Page 24: ...5 6 7 8 9 10 11 E80000h 1 2 3 4 5 6 7 8 9 10 11 F00000h 1 2 3 4 5 6 7 8 9 10 11 F80000h 1 2 3 4 5 6 7 8 9 10 11 FA0000h 1 2 3 4 5 6 7 8 9 10 11 FC0000h Notes These addresses cannot be used in systems...

Page 25: ...in the system including other PC Xi boards The I O port address is determined by setting switches 9 10 and 11 of DIP switch DS1 as shown below Figure 5 DS1 SW9 11 PC Xi I O Port Selection 1 2 3 4 5 6...

Page 26: ...device in the system Select the IRQ by setting the appropriate switch in DS2 as shown below Most DigiBoard device drivers do not use interrupts so the normal setting for DS2 is Disabled all switches...

Page 27: ...w in the endplate the connector may not be exactly centered in the slot in the back of the computer Be sure to re tighten the endplate screw once the DB 78 connector is securely attached IMPORTANT Use...

Page 28: ...board 3 Plug the cable end marked P3 the shorter cable into the board connector P3 Plug the cable end marked P2 the longer cable into the board connector P2 see Figure 8 below for the location of P2...

Page 29: ...he space provided You will need it if you have to contact DigiBoard regarding the board There are two banks of DIP switches and one jumper which need to be set prior to installing the board in your co...

Page 30: ...ing information Board Installation PC 16e 1 Place the connector box assembly near the open slot at the rear of the machine Thread the two gray ribbon cables through the slot so that the two plugs are...

Page 31: ...inal it should be write protected and stored in a safe place MC Xi boards have one jumper which needs to be set by the user and two factory preset jumpers which should not be changed Figure 9 MC Xi Pr...

Page 32: ...formation about the memory window Installing the MC Xi board below 1 megabyte protects it from interference from the cache controllers on some Micro Channel machines and enables the board to be instal...

Page 33: ...nged if you are installing custom EPROMs On RS 232 versions of the MC Xi the jumpers are labeled J5 and J6 On RS 422 and RS 422 RS 485 versions they are J3 and J4 Table 2 MC Xi EPROM Size Jumpers RS 2...

Page 34: ...the MC Xi board Be sure that the plug is completely installed it may be a snug fit 3 Screw the connector into the board s endplate Do not over tighten the screws If the screws don t go in several turn...

Page 35: ...P3 is closest to the board and the connectors are pointing toward the board 3 Plug the cable end marked P3 the shorter cable into the board connector P6 Plug the cable end marked P2 the longer cable i...

Page 36: ...low the instructions given on your computer screen for copying ADF files onto your Reference Diskette 3 Select Set Configuration from the main menu Then select Run Automatic Configuration from the Set...

Page 37: ...E9 ADF 4 8 port boards RS 232 interface 128K memory 7F99 ADF 4 8 port boards RS 232 interface 32K memory 6FEB ADF 16 port boards RS 232 interface 128K memory 7F9B ADF 16 port boards RS 232 interface 3...

Page 38: ...contact DigiBoard regarding the board Several jumpers need to be set to configure the board s I O address dual ported memory start address and IRQ line Figure 13 COM 8i Board Serial Number Processor B...

Page 39: ...0CFFFFh 0D0000h 0D7FFFFh and 0D8000h 0DFFFFh Each COM Xi board requires its own 32K block of addresses and no other device may share these addresses While up to four COM Xi boards can be installed in...

Page 40: ...s This address must not be used by any other device in the system including other COM Xi boards The I O port address is determined by setting jumpers J2 J3 and J4 as shown below Figure 15 J2 J4 COM Xi...

Page 41: ...wn in Figure 16 Many DigiBoard device drivers do not use interrupts If you are using one of these drivers see the installation instructions for the device driver the interrupts should be disabled no j...

Page 42: ...Installing COM Xi Boards 31 IRQs 10 15 can only be used if the board is plugged into an AT 16 bit slot...

Page 43: ...tion of J1 and J2 These jumpers are set at the factory and should only be changed by the user when a customized EPROM is installed The default positions for J1 and J2 are pins 1 and 2 the top two pins...

Page 44: ...plug is completely installed it may be a snug fit HINT If you have difficulty plugging in the DB 78 connector try loosening the screw in the endplate the connector may not be exactly centered in the s...

Page 45: ...t electronics stores and computer dealers The wiring dia gram for a 9 pin to 25 pin modem cable is shown in Figure 17 Figure 17 DB 9 to DB 25 Modem Cable DB 9 Female DB 25 Male 8 3 2 20 7 6 4 5 22 1 P...

Page 46: ...RTS CTS DSR SG DCD DTR RI GND TxD RxD RTS CTS DSR SG DCD DTR RI Signal Shell 2 3 4 5 6 7 8 20 22 1 2 3 4 5 6 7 8 20 22 Signal Cable Shield To connect a DB 25 equipped board to a modem use a standard...

Page 47: ...e adapters use 10 pin RJ 45 plugs and therefore provide full modem support Ring Indicator and Data Carrier Detect are only available on 10 pin RJ 45 connectors Figure 19 RJ 45 to DB 25 Modem Cable 10...

Page 48: ...N is enabled see your device driver soft ware reference manual for instructions DCD becomes available on pin 1 of an 8 pin RJ 45 connector equivalent to pin 2 of a 10 pin connector Figure 20 8 Wire Mo...

Page 49: ...other DTE device you need a null modem cable or adapter DB 9 Equipped Boards Use a standard PC printer cable or build a cable as shown in Figures 21 or 22 Figure 21 9 Pin to 25 Pin Null Modem Cable Pi...

Page 50: ...g Peripherals 39 Figure 22 9 Pin Null Modem Cable Pin Pin DCD RxD TxD DTR DSR RTS CTS SG GND RI DCD RxD TxD DTR DSR RTS CTS SG GND RI Signal 1 2 3 4 6 7 8 5 Shell 9 1 2 3 4 6 7 8 5 Shell 9 Signal Cabl...

Page 51: ...and the shield should be connected to Chassis Ground GND at both ends of the cable run A simple cable for connecting a terminal or a printer to a DB 25 equipped board is shown in Figure 23 Figure 23...

Page 52: ...Shield Most terminals and printers use Data Terminal Ready DTR for Ready Busy hardware handshaking The cable shown in Figure 24 supports this method Some Okidata printers use a control signal on pin 1...

Page 53: ...must be shielded to remain in compliance with FCC certification requirements and the shield should be connected to Chassis Ground GND at both ends of the cable run A simple cable for connecting a term...

Page 54: ...Okidata printers use a control signal on pin 11 called Supervisory Send Data SSD instead of DTR In this case simply connect CTS on the RJ 45 side to pin 11 of the DB 25 instead of pin 20 Other printer...

Page 55: ...otal capacitance of a cable affects the integrity of transmitted data As a rule of thumb the total capacitance of a cable including the connectors should not exceed 2500 pF Serial interface cable is u...

Page 56: ...tput Input 4 CTS Clear to Send Input Output 5 DSR Data Set Ready Input Output 6 SG Signal Ground reference reference 7 DCD Data Carrier Detect Input Output 8 DTR Data Terminal Ready Output Input 20 RI...

Page 57: ...red with male or female DB 25 connectors configured as DTE or DCE devices Quad and Octa Cable Option DTE or DCE Figure 27 Octa Cable Assembly Table 6 DB 25 Cable Options and Part Numbers DTE Quad DCE...

Page 58: ...nnector Box 1 1 5 5 2 2 6 6 3 3 7 7 4 4 8 8 TM Figure 28 shows the eight port DB 25 connector box option A four port box is also available Table 7 Connector Box Options and Part Numbers DB 25 Male DB...

Page 59: ...C 16i boards are available with male DB 25 connectors configured for DTE operation The connector box shown below is attached to the board via two ribbon cables which mate to connectors P2 and P3 on th...

Page 60: ...d Octa Cable Options and Part Numbers DB 9 Male DB 9 Female DTE Quad 7600003 7600001 DTE Octa 7600015 7600013 Table 9 DB 9 Connector Pin Assignments Signal Description Direction Pin GND Chassis Ground...

Page 61: ...3 Four and eight port boards can be configured with 10 pin RJ 45 modular jacks These accept plastic snap in plugs like the ones used for connecting telephones They are less bulky and more convenient t...

Page 62: ...RS 232 Cables and Connector Options 51 Figure 31 RJ 45 Connector Box for PC 16e Boards 1 1 9 9 2 2 1 10 0 3 3 11 11 4 4 1 12 2 5 5 1 13 3 6 6 1 14 4 7 7 1 15 5 8 8 1 16 6 TM...

Page 63: ...pin RJ 45 directly correspond to pins 2 9 of a 10 pin RJ 45 connector Similarly the two RJ 11 plugs have the same physical dimensions but the 6 pin version has an extra pin at each end The RJ 11 plugs...

Page 64: ...st simple and direct approach is to purchase ready made Cable Legs from a DigiBoard dealer or distributor These are made with a full 10 pin RJ 45 plug which can be difficult to obtain in the retail ma...

Page 65: ...nnectors The PC 16i and MC 16i boards are equipped with a connector box assembly that houses sixteen male DB 25 connectors Cables RS 422 interface cables should be shielded twisted pair cables Each si...

Page 66: ...ctors Table 12 DB 9 and DB 25 Connector Wiring for RS 422 Boards Signal Description DB 9 Pin 4i 8i Boards DB 25 Pin 16i Boards TxD Transmitted Data 8 2 TxD Transmitted Data 9 14 RxD Received Data 6 3...

Page 67: ...nd the leads at one end must be connected to the leads at the other end Incorrect wiring could result in damage to the connected devices Figure 33 shows a null modem connection for hardware handshakin...

Page 68: ...ll Modem for Software Handshaking DigiBoard DTE DigiBoard DTE Peripheral DTE Peripheral DTE TxD RxD RTS CTS GND RxD TxD CTS RTS GND Figure 35 RS 422 DTE to DCE Connection DigiBoard DTE DigiBoard DTE M...

Page 69: ...addition to the standard asynchronous ports RS 232 The MC Xi synchronous port uses a 10 pin RJ 45 jack located above the DB 78 connector on the endplate Three of the ten pins are dual function pins th...

Page 70: ...ignal Name Jumpers 1 TRxCA Transmit Receive Clock J2 Pins 1 2 SYNB Synchronization B RI J2 Pins 2 3 2 DSRA Data Set Ready A Input J3 Pins 1 2 J4 Pins 1 2 SYNA Synchronization A Output J3 Pins 2 3 J4 P...

Page 71: ...ronous ports plus one RS 485 synchronous port Figure 37 MC 8i RS 422 Synchronous Port and Jumpers J1 J2 Synchronous Port RJ 45 Connector J1 J2 The MC Xi synchronous port uses a 10 pin RJ 45 jack locat...

Page 72: ...ve Transmit Clocks J1 Pins 2 3 2 CTS Clear To Send J1 Pins 1 2 RTC Receive Transmit Clocks J1 Pins 2 3 3 GND Chassis Ground 4 TxD Transmitted Data 5 TxD Transmitted Data 6 RxD Received Data 7 RxD Rece...

Page 73: ...the standard asynchronous ports PC 8i The PC 8i synchronous port uses a 10 pin RJ 45 jack located above the DB 78 connector on the endplate Three of the ten pins are dual function pins the functions o...

Page 74: ...n Signal Name Jumpers 1 TRxCA Transmit Receive Clock J4 Pins 1 2 SYNB Synchronization B RI J4 Pins 2 3 2 DSRA Data Set Ready A Input J1 Pins 2 3 J2 Pins 2 3 SYNA Synchronization A Output J1 Pins 1 2 J...

Page 75: ...Send 6 DSR Data Set Ready 7 SG Signal Ground 8 DCD Data Carrier Detect 15 TRxCA Transmit Receive Clock 17 RTxCA Receive Transmit Clock 20 DTR Data Terminal Ready 22 RI Ring Indicator Pin 15 TRxCA can...

Page 76: ...C 16i RS 422 5 VDC 1 85 Amps plus 60 mA per channel under load PC 16e 5 VDC 2 0 Amps max 12 VDC 130 mA max 12 VDC 110 mA max PC 8i 5 VDC 1 4 Amps max 12 VDC 130 mA max 12 VDC 110 mA max COM 8i RS 232...

Page 77: ...A max MC 8i RS 232 5 VDC 1 8 Amps max 2 0 Amps max with sync port 12 VDC 80 mA max 12 VDC 80 mA max MC 4i RS 232 5 VDC 1 4 Amps max 1 6 Amps max with sync port 12 VDC 40 mA max 12 VDC 40 mA max MC 16i...

Page 78: ...t 1 0 pound MC Xi Length 11 5 inches Width 0 6 inches Height 3 5 inches Weight 0 75 pounds COM Xi Length 11 5 inches Width 0 6 inches Height 4 2 inches Weight 1 25 pounds Environmental All Boards Ambi...

Page 79: ...computer sees this memory as its own and can use the same high speed memory referencing commands that it uses with its internal memory Figure 39 on the following page shows a map of the first megabyte...

Page 80: ...FFFFFh ESDI Hard Disk Drive SCSI Interface EGA VGA ROM BIOS System BIOS BIOS Extensions EBIOS EMM LIM 4 0 Color Video Memory System Memory RAM System Memory RAM in 640K systems Can be used for periphe...

Page 81: ...lways some sort of video memory between A0000h and BFFFFh and the system BIOS at F0000h makes the E0000h FFFFFh range unusable for 128K boards Further it will probably be necessary to sacrifice someth...

Page 82: ...numbered bytes will be accessible and the device will fail PC Xi and PC 16e boards are 16 bit devices however their dual ported memory can be turned on or off by writing a 1 or 0 respectively to a bi...

Page 83: ...er disable the cache or address the MC Xi below 1 megabyte Under DOS the 128K MC Xi can only be installed at C0000h which makes it impractical in most installations Micro Channel PS 2 machines usually...

Page 84: ...use a Monochrome Display Adapter instead ESDI hard disk controllers which typically have a ROM BIOS beginning at C8000h or CC000h Solution Replace the ESDI drive and controller with an MFM drive and...

Page 85: ...ice resides in the same 128K block as a 16 bit device only even numbered bytes will be accessible and the device will fail The COM Xi board is an 8 bit device it looks like a 16 bit board because it h...

Page 86: ...45 49 50 Connector options 44 52 DB 25 44 46 DB 9 48 RJ 45 Part numbers 49 Connectors RJ 11 4 pin 51 6 pin 51 RJ 45 10 pin 51 8 pin 51 RS 422 54 Contention Memory addresses 67 Sources 71 Converting RJ...

Page 87: ...indow MC Xi 21 Modem eliminator RS 422 55 56 Modems 33 35 RS 422 asynchronous 56 Modular plugs 51 Null modem 37 RS 422 55 56 Octa cable DB 25 45 Part numbers 45 DB 9 48 Part numbers 48 PC Xi 1 61 Pin...

Page 88: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

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