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This cable is a three-wire null modem cable. Transmitted data on one end of the cable is connected
to Received data at the other end, and vice versa. The male DB-25 end can be plugged directly
into most serial terminals and printers without any adapters. The female DB-25 end plugs directly
into any RoHS DB-25 serial port.

DB-25 4-Wire Hardware Handshaking (DTR) Cable

The four-wire cable is sufficient for an older terminal, printer, or other DTE (Data Terminal
Equipment) devices configured for DTR (hardware) flow control. However, some terminals and
printers may use a signal other than DTR (Data Terminal Ready) for flow control. In addition,
some terminals and printers may have other cable requirements. Consult your terminal or printer
manual for this information. For more universal compatibility, use a fully-wired DB-25
terminal/printer cable.

lists the pin-out connection between the DB-25 adapter and the DB-25 terminal/printer

with DTR handshaking.

Table B-3 Terminal/Printer Cable with DTR Handshaking

DB-25 Male (Peripheral)

DB-25 Female (Card End)

Signal

Pin

Pin

Signal

RxD

3

Connected to

2

TxD

TxD

2

Connected to

3

RxD

DTR

20

Connected to

5

CTS

SG

7

Connected to

7

SG

GND

Shell

Connected (via
shield) to

Shell

GND

RTS+CTS

4+5

Jumpered

IMPORTANT:

Some terminal or printer manufacturers may use different methods of flow

control. Consult your documentation for specific wiring requirements.

DB-25 Hardware Handshaking (RTS/CTS) Cable

The cabling shown in

is often sufficient for a terminal, printer, or other DTE devices

configured for RTS/CTS (hardware) flow control. However, some terminals and printers may
have other cable requirements. Consult your terminal or printer manual for this information.
For universal compatibility, use a fully-wired DB-25 terminal/printer cable.

lists the pin-out connection between the DB25 adapter and the DB-25 terminal/printer

with RTS/CTS handshaking.

Table B-4 Terminal/Printer Cable with RTS/CTS Handshaking

DB-25 Male (Peripheral)

DB-25 Female (Card End)

Signal

Pin

Pin

Signal

RxD

3

Connected to

2

TxD

TxD

2

Connected to

3

RxD

CTS

5

Connected to

4

RTS

RTS

4

Connected to

5

CTS

DTR

20

Connected to

6+8

DSR+DCD

SG

7

Connected to

7

SG

34

Peripheral Connections

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Содержание AD278A

Страница 1: ...HP AD278A and AD279A PCI Multiplexer Support Guide HP UX 1 1i v3 HP Part Number AD278 9002D Published November 2008 Edition Edition 1 ...

Страница 2: ...ts accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein UNIX is a registered trademark of The Open Group Intel and Itanium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries 2008Hew...

Страница 3: ...pmux_diag Utility 15 Starting pmux_diag Utility 15 The pmux_diag Utility Conventions 15 Exiting pmux_diag Utility 15 Driver Status Menu Selections 16 Driver Status 16 Board Status 17 Counters 17 Topology 18 Port Status Menu Selections 19 Breakout Box 19 Data Scope 20 Termio 22 Register Dump 22 Diagnostics Menu Selections 23 Loopback 23 Send 24 Quit 24 Excessive Frequent getty Spawning 25 Terminal ...

Страница 4: ...lly Wired Terminal Printer Cable 35 DB 25 Modem Cable 35 RS 232 Asynchronous RJ 45 35 RJ 45 Pin Assignments 35 RJ45 8 Pin Plug Hardware Handshaking DTR Cable 36 RJ 45 8 Pin Plug Hardware Handshaking RTS CTS Cable 36 RJ45 Fully Wired Terminal Printer Cable 37 RJ 45 10 Pin Plug to DB 25 Modem Cable 37 Cabling Pin outs for HP Proprietory RJ45 and DB25 Devices 38 C Port Naming and Numbering Convention...

Страница 5: ... 3 Board Status Display 17 2 4 Select Port Group Display 18 2 5 Selected Group Communications Monitor Display 18 2 6 Topology Display 19 2 7 Breakout Box Device Name Selection Display 19 2 8 Breakout Box Display 20 2 9 Data Scope Parameter Setup Display 21 2 10 Data Scope Data Monitor Display 21 2 11 Data Scope Capture Data Display 22 2 12 Termio Flags Display 22 2 13 Register Dump Display 23 2 14...

Страница 6: ...Printer Cable 33 B 3 Terminal Printer Cable with DTR Handshaking 34 B 4 Terminal Printer Cable with RTS CTS Handshaking 34 B 5 Terminal Printer Cable for Software XON XOFF or Hardware DTR Handshaking 35 B 6 RJ 45 Pin Assignments 36 B 7 Terminal Printer Cable with DTR Handshaking 36 B 8 Terminal Printer Cable with RTS CTS Handshaking 37 B 9 Terminal Printer Cable for Software XON XOFF or Hardware R...

Страница 7: ...es its components Chapter 2 Troubleshooting Describes the diagnostics tools available and how to troubleshoot PCI Multiplexer Appendix A Appendix AProvides technical specification details for components of PCI Multiplexer Appendix B Appendix BProvides RJ45 and DB25 pin out tables for RJ 45 and DB 25 connectors Appendix C Appendix CDescribes the naming and numbering conventions followed for ports a...

Страница 8: ...eases Supported Processor Architecture Release Name Release Identifier PA RISC HP UX 11i v1 B 11 11 Intel Itanium HP UX 11i v1 5 B 11 20 Intel Itanium HP UX 11i v1 6 B 11 22 Intel Itanium HP UX 11i v2 0 B 11 23 Related Documents For more information about HP AD278A AD279A PCI MUX see the following documents available at http www docs hp com en netcom html Multiplexers HP AD278A and AD279A PCI Mult...

Страница 9: ... HP AD278A AD279A PCI MUX product and their part numbers All the components are Restriction of Hazardous Substance RoHS compliant Table 1 1 PCI MUX 8 Port Adapter AD278A Solution Part Number Component Name AD278 60001 HP PCI MUX 8 port serial adapter AD278 2000A 4 feet 1 21920 metre Octopus Cable and DB 25 Loop back AD278 2001A DB25 RJ45 Conversion Kit Table 1 2 lists the AD279A PCI MUX 64 port ad...

Страница 10: ...rations of up to eight high speed serial ports It works on both 3 3 V and 5 V systems For more information see Card Specifications page 29 The AD278A PCI MUX 8 port adapter supports a fan out cable as an interface Figure 1 1 shows AD278A PCI MUX 8 port adapter Figure 1 1 AD278A PCI MUX 8 Port Adapter AD279A PCI MUX 64 Port Adapter The AD279A PCI MUX 64 port adapter can control the operations of up...

Страница 11: ... with the RJ 45 pin assignments used on the older A6748A A6749A PCI MUX products Cables used to connect port modules two three and four are known as EBI cables Each EBI cable is one feet 0 30480 metre in length The RJ45 and DB25 port modules use the same EBI cable The AD280A and the AD281A use the same power supply AD280 2001A NOTE The AD279A PCI MUX 64 port adapter can support 2 port modules or u...

Страница 12: ...er changer is required if the device cabling uses male DB 25 connectors Figure 1 5 shows AD278A PCI MUX 8 port adapter fan out cable Figure 1 5 Fan Out Cable for AD278A PCI MUX 8 Port Adapter The RJ 45 to DB 25 adapter cables can be built and used to connect the fan out cable ports to various peripheral devices Power Supply for Port Modules The first and second port modules connected to a AD279A P...

Страница 13: ...Figure 1 6 Power Supply NOTE Third and fourth port modules require a seperate power supply AD278A AD279A PCI Multiplexer Components 13 ...

Страница 14: ...14 ...

Страница 15: ...gram that supports diagnostic operations All diagnostic operations are supported by the pmux_diag utility in the current release Starting pmux_diag Utility To start the pmux_diag utility complete the following steps 1 Log in to the system as super user 2 Run the following command at the command prompt usr bin pmux_diag 3 Press Enter The main menu displays the following options Driver Status Port S...

Страница 16: ... x xxxx Where x represents the release number for example 11 31 xxxx represents the AR release number or the version number for a Web release or OS initial release The AR release number can be 0609 0612 and so on The version number for a Web release or OS initial release can be 01 02 and so on Driver Status The Driver Status sub menu enables you to view the device driver version The Driver Status ...

Страница 17: ...b menu and press Enter Information about additional boards if any is also displayed Figure 2 3 shows the Board Status Display Figure 2 3 Board Status Display Counters The Counters sub menu allows you to monitor in realtime the selected board s or module s transmit and receive activity The values displayed are the accumulated totals since the system was booted or since the last reset counters were ...

Страница 18: ...Monitor Display Topology The Topology sub menu allows you to troubleshoot problems related to the host cable To view the host adapter card and port modules attached to it select Topology sub menu and press Enter A pictorial representation of a host adapter card and port modules attached to it is displayed To exit Topology press Esc Figure 2 6 displays the topology of the host adapter card and the ...

Страница 19: ...out Box sub menu allows you to do real time monitoring of data and control signal leads calculated received and transmitted rates and cumulative bi directional character counts Figure 2 7 shows the port name of the selected device Figure 2 7 Breakout Box Device Name Selection Display If the port name displayed in the device selection box is incorrect enter the correct port name in the space provid...

Страница 20: ... are also displayed Data Scope The Data Scope setup screen allows you to establish the parameters that identify the data selected for display To view realtime window of the on board memory select Data Scope and press Enter To view the datascope parameter setup display perform the following steps Select the Device Port Name that is dev tty3al Select the type of monitor you want INPUT OUTPUT FULL DU...

Страница 21: ...hows the Data Scope Monitor display Figure 2 10 Data Scope Data Monitor Display The Data Scope Monitor screen shows the actual characters as they are being sent and or received by the device This screen displays both hexadecimal and ASCII data Press any key and the Data Scope Capture Data screen is displayed Figure 2 11 shows Data Scope Capture Data display Port Status Menu Selections 21 ...

Страница 22: ...The Termino sub menu allows you to view general terminal interface data associated with the port Termio displays all enabled termio flags and is thus similar to the stty command To view the interface data associated with the port select Termio and press Enter Figure 2 12 shows the terminal interface details Figure 2 12 Termio Flags Display Register Dump The Register Dump sub menu displays a real t...

Страница 23: ...ell as toward the terminal The program starts by writing a data pattern to the selected ports and reading the data back and comparing it to a pattern written out At regular intervals the program reports the number of characters transmitted and received and the errors encountered The data is transmitted in an ascending pattern from 0 decimal to 127 decimal HP recommends that you disconnect any devi...

Страница 24: ...nuous stream of data is required to resolve wiring issues The port configuration is 8 data bits 1 stop bit and no parity To view the data transmission details highlight Send and press Enter The number of transmitted characters is displayed Figure 2 15 shows the Diagnostics Send test Figure 2 15 Diagnostics Send Test Quit The last menu selection on the main menu is Quit To quit the pmux_diag utilit...

Страница 25: ...ntrol port with CLOCAL set keeps toggling The result is that the getty process dies because the loss of carrier spawns a new getty If the system detects a getty process spawned too frequently on a port it prints this message and eventually fails to spawn a new getty The following message appears on the console tty1a1 getty keeps dying There may be a problem NOTE You may encounter this problem only...

Страница 26: ...Causes Problems Perform one of the following actions Use the pmux_diag utility to send data to the printer Verify whether cables and connectors are connected properly the printer is powered on and is on line If no data is printed check the port by placing a terminal in place of the printer and use pmux_diag utility to send data If data is printed on the terminal then there is a problem with the pr...

Страница 27: ... console Then enter the following command on the console AT You must see an OK echo on the console If not enter the following on the console ATE1 After getting the OK echo back from the modem enter the following on the console ATDT Phone Number Any phone number can be used to check out the modem If the modem is still not functioning properly type a few characters on the keyboard and check whether ...

Страница 28: ...hip and permissions The dial out port cannot be opened CAN T ACCESS DEVICE System Crashes or Panics The system may crash after installing the MUX cards Table 2 6 describes the cause of this problem and also describes how to troubleshoot this problem Table 2 6 System Crashes or Panics Action Cause Problem System kernel parameters may require modification Fine tuning your kernel is site dependent It...

Страница 29: ...X 8 port Serial Adapter Specifications Table A 1 AD278A PCI MUX 8 port Serial Adapter Specifications Power Requirements 960 mA typical 5 V 5 80 mA typical 12 V 5 80 mA typical 12 V 5 Card Type and Speed PCI 33MHz Environmental Requirements 10 to 55 degrees C Ambient Temperature 5 to 90 Relative Humidity 30 CFM forced Air Movement 0 to 12 000 feet Altitude Serial Interface Surge Suppression 13 volt...

Страница 30: ...s 17 145 cm Length 5 inches 1 270 cm Width 4 2 inches 10 668 cm Height 4 ounces 113 40 gram Weight AD280A AD281A Port Module Specifications Table A 3 lists the AD280A AD281A port module specifications Table A 3 AD280A AD281A Port Module Specifications Power Requirements The HP 16 port RS 232 Port Modules RJ45 and DB25 receives power supply from the EBI bus that connects it to the adapter Each modu...

Страница 31: ...s Must be shielded Must have low capacitance Designed specifically for serial data transmission Grounding Requirements RS 232 interface cables must have shield grounded at both ends of the cable HP recommends Chassis ground available on the shell of RoHS DB 25 connectors and pin 4 of a 10 pin RJ 45 connector Environmental Requirements Good shielding provides reasonable protection against noise ele...

Страница 32: ...e rated at 12 3 pF foot conductor to conductor 22 4 pF foot conductor to shield If low capacitance cable is unavailable or very long cable runs are required short haul modems can be used to increase the effective range of the RS 232 interface Short haul modems are similar to standard modems except that they are connected directly to each other through a cable instead of a telephone circuit Use onl...

Страница 33: ...5 Pin Assignments Pin DTE Use Description Signal Shell N A Chassis Ground GND 2 Output Transmitted Data TXD 3 Input Received Data RXD 4 Output Request to Send RTS 5 Input Clear to Send CTS 6 Input Data Set Ready DSR 7 Reference Signal Ground SG 8 Input Data Carrier Detect DCD 20 Output Data Terminal Ready DTR 22 Input Ring Indicator RI DB 25 Software Handshaking XON XOFF Cable The three wire cable...

Страница 34: ...haking DB 25 Male Peripheral DB 25 Female Card End Signal Pin Pin Signal RxD 3 Connected to 2 TxD TxD 2 Connected to 3 RxD DTR 20 Connected to 5 CTS SG 7 Connected to 7 SG GND Shell Connected via shield to Shell GND RTS CTS 4 5 Jumpered IMPORTANT Some terminal or printer manufacturers may use different methods of flow control Consult your documentation for specific wiring requirements DB 25 Hardwa...

Страница 35: ...king DB 25 Male Terminal Printer DB 25 Card End Signal Pin Pin Signal CTS 5 Connected to 4 RTS GND Shell Connected to Shell GND RxD 3 Connected to 2 TxD TxD 2 Connected to 3 RxD SG 7 Connected to 7 SG DTR 20 Connected to 5 CTS DCD DSR 8 6 Connected to 20 DTR RTS 4 Connected to 8 6 DCD DSR IMPORTANT Some terminal or printer manufacturers may use different methods of flow control Consult your docume...

Страница 36: ... the RJ 45 8 pin adapter and the DB25 terminal printer with DTR handshaking Table B 7 Terminal Printer Cable with DTR Handshaking DB 25 Male Peripheral RJ 45 8 Pin Plug MUX Port End Signal Pin Pin Signal RxD 3 Connected to 4 TxD TxD 2 Connected to 5 RxD DTR 20 Connected to 7 CTS SG 7 Connected to 6 SG GND 1 or shell Connected via shield to 3 GND RTS CTS 4 5 Jumpered IMPORTANT Some terminal or prin...

Страница 37: ...inals and printers use Request to Send Clear to send RTS CTS for hardware handshaking The cable shown supports this method Table B 9 lists the pin out connection between the RJ45 adapter and the DB25 terminal printer with RTS CTS handshaking Table B 9 Terminal Printer Cable for Software XON XOFF or Hardware RTS CTS Handshaking DB 25 Male Terminal Printer RJ 45 10 Pin Plug MUX Port End Signal Pin P...

Страница 38: ...A PCI Mux adapters to HP proprietory RJ45 and DB25 devices NOTE All RS 232 ports provide a standard RS 232 interface with full modem control signals and surge protection on every signal Table B 11 shows the pin out connection between the RJ 45 adapter and HP proprietary RJ 45 device Table B 1 1 RS 232 RJ 45 Pinouts to HP Proprietary RJ 45 Pinouts RJ 45 HP proprietory device end RJ 45 10 Pin Plug M...

Страница 39: ...inouts to HP Proprietary RJ 45 Pinouts RJ 45 HP proprietory device end DB 25 Card End Signal Pin Pin Signal 6 Data Set Ready Clear to Send 4 Connected to 5 Clear to Send 8 Data Carrier Detect Signal Ground 6 Connected to 7 Signal Ground Transmitted Data 3 Connected to 2 Transmitted Data Shell Chassis Ground Received Data 1 Connected to 3 Received Data 20 Data Terminal Ready Request to Send 5 Conne...

Страница 40: ...r RJ 45 10 Pin Jack RJ 45 10 Pin Plug AD280A End Signal Pin Pin Signal RI 1 Connected to 1 RI DSR 10 Connected to 2 DSR RTS 2 Connected to 3 RTS GND 5 Connected via shield to 4 GND TxD 6 Connected to 5 TxD RxD 4 Connected to 6 RxD SG 7 Connected to 7 SG CTS 9 Connected to 8 CTS DTR 3 Connected to 9 DTR DCD 8 Connected to 10 DCD Table B 16 shows the pin out connection for RS 232 DB 25 port to A6748...

Страница 41: ...to A6748A A6749A RJ 45 Converter continued RJ 45 10 Pin Jack DB 25 10 Pin Plug AD280A End DCD 8 Connected to 8 DCD DTR 3 Connected to 20 DTR RI 1 Connected to 22 RI Cabling Pin outs for HP Proprietory RJ45 and DB25 Devices 41 ...

Страница 42: ...42 ...

Страница 43: ...ls for establishing connections MUX port names are of the general form dev port_type instance port module port Where port_type categories are tty direct connect ttyd modem dial in cul modem dial out cua modem dial out with automatic caller NOTE The latter three examples are used with uucp dial up protocol instance is an instance number which is assigned by HP UX to the MUX card port module is a si...

Страница 44: ... cul1a14 dev ttyd1a14 dev tty1a14 14 dev cua1a15 dev cul1a15 dev ttyd1a15 dev tty1a15 15 dev cua1a16 dev cul1a16 dev ttyd1a16 dev tty1a16 16 Table C 2 HP MUX 64 Card 1 Port Module d Port Names AutomaticCaller Dial out Port Name Modem Dial out Port Name Modem Dial in Port Name Direct Connect Port Name Port P o r t L I N E B R E A K M o d u l e Instance dev cua1d1 dev cul1d1 dev ttyd1d1 dev tty1d1 1...

Страница 45: ...ding interference that might cause undesired operation 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 are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency ene...

Страница 46: ...pean Community NOTE This is a Class A product In a domestic environment this product may cause radio interference in which case you may be required to take adequate measures Japan 46 Port Naming and Numbering Conventions ...

Страница 47: ...Declaration of Conformity Declaration of Conformity 47 ...

Страница 48: ...Declaration of Conformity 48 Port Naming and Numbering Conventions ...

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