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Configuring HP3000 Series 9X7 for Remote Console
Written By: Jerry Mills

General Description

The Access Port is located on the Multifunction I/O card. The Integrated Access Port is designed for use with PA-RISC HP-PB I/O base systems to provide a minimal level of remote supportability for the systems. The Access Port gives the console operator the ability to read system status and to generate system resets through the console terminal instead of through the system's front panel display and switches. It also provides the ability to connect a second console in parallel with the local console terminal. This "mirrored" console port is connected to a modem through which the second or remote console is attached. This provides the same system support functionality to a remote terminal as is available to a console operator sitting next to the system.

Series 9X7 Novas have two unique serial hardware ports found on the MultiFuntion I/O Card (MFIO). The Local Console (LDEV 20) and the Session Port (LDEV 21). This card is found in slot 14 and it’s part number is A1703-60003. Hardware Path for the Console is 56.0 and Session Port is 56.1.

The local system console will be directly connected on Access Port 0 via a 3 meter cable. One end has a 6-pin circular DIN connector, and the other end has a 25 pin male connector. The modem port (Access Port 1) is a 25-pin connector and can be used for remote support as a mirrored console or as a separate user session port.

Access Ports Modes

Terminals connected to the Access Ports may be in one of three operating modes:

Session Mode – LDEV 21 only (perform a ‘SHOWME’)

Session mode is defined as a direct connection from the terminal to the host system with the Access Port monitoring but not acting on any characters transmitted between the terminal and the host.

Console Mode – LDEV 20 only (perform a ‘SHOWME’)

Console mode is defined as a connection in which the Access Port monitors the data being transferred and will take special action on some characters.

Control Mode – CM> prompt after Control-B in Local / Remote Console Mode

Control mode is defined as a mode in which the terminal is in communication with the Access Port only.

System Console - LDEV 20 or Access Port 0 (Console) gives the local console operator the ability to read system status and to generate system resets through the console terminal instead of through the system's front panel display and switches. This Port requires no special configuration and does not support modem connections.

LDEV 21 or Access Port 1 (Remote Modem) has two separate hardware modes requiring configuration. The normal default is as a Session Port capable of systems sessions where it is considered to be LDEV 21. Session (LDEV 21) configuration is done through a special NMMGR field labeled “Go To User Port”. This is necessary as the hardware function is separate from DTC’s. Changes to the User Port do not take effect until you do a start norecovery.


It takes two separate steps to setup Remote Console / Session Port.

Step One

To setup Port 1 as a Session Port for Modems it will first be necessary to examine LDEV 21. Check whether LDEV 21 is currently configured and available.

:showdev 21 <enter>

LDEV AVAIL OWNERSHIP VOLID DEN ASSOCIATION

21 A AVAIL

:sysgen <enter>

sysgen> io <enter>

io> ld 21 lists current configuration of LDEV 21

LDEV: 21 DEVNAME: OUTDEV: 21 MODE: JAID

ID: A1703-60003-CONSOLE-TERMINAL RSIZE: 40 DEVTYPE: TERM

PATH: 56/56.1 MPETYPE 16 MPESUBTYPE: 0

CLASS: TERM

Exit sysgen then enter NMMGR

:NMMGR <enter>

Open Configuration <F1>

DTS <F1>

User Port <F4> Configure the LDEV 21 User Port as shown in the following screen:

HP SUPPORT MODEM PORT SCREEN


This screen lets you configure parameters that affect the operation of the modem port used by HP support personnel.

When you have entered all the configuration values for the Support Modem Port, press the Save Data key then press the Prior Screen key to return to the Host Configuration Screen.

PARAMETERS

Logical Device

The logical device (ldev) number you want to associate with the port. This ldev number must be the same as the ldev number configured for the second serial port (Port 1) on the HP-PB SCSI/Console LAN card. It is normally set to 21.

Line speed

Enter the line speed, in bits per second. Use one of the supported speeds (300, 1200, 2400, 9600, or 19200 bps). I recommend 9600 Modem type

0 Specifies that modems will not be part of the connection. (Normal Default!!!)

1 Specifies that a US modem will be part of the connection. Use this type!!

2 Specifies that a European modem will be part of the connection.

Parity

Enter the type of parity that will be used if parity is to be enabled. Choices are None, Even, Odd, 0's, or 1's. Use None as this will allow you to do binary file transfers.

Save Data key

Saves the data on the current screen. Does not validate the configuration file.

Validate your changes if you made any then reboot the system. Perform “START NORECOVERY” as is normal for adding or changing a LDEV. This will then enable LDEV 21 to behave like a modem connection.

Step Two

It is now necessary to configure the “ACCESS PORT” to match your LDEV 21 (Session Port) configuration. This is unique only to the remote console port and is where we deviate from the typical DTC port. To configure the ACCESS PORT you need to be on the system console where you can execute a CONTROL-B to get the CM> prompt.

CM>HELP <enter>

HP A1703 Access Port Revision 1.0 - 3135

CA - Configure system remote support modem port.

CO - Enter console mode.

CS - Copy screen from local console to remote console.

DI - Disconnect line to remote console terminal.

DR - Disable access by a remote console terminal (enable session access).

DS - Disable display of system status line during console mode.

ER - Enable access by a remote console terminal (disable session access).

ES - Enable display of system status line during console mode.

HE - Display this screen.

**LR - Lock remote (disables all modem modes – in/out).

RS - Stop all processing, initiate SPU selftest, load software from load device if enabled for autoboot.

SE - Transfer remote terminal from console/control to session mode.

TA - Initiate Access Port selftest.

TC - Transfer processor execution to operating system specific routine.

TE - Send message between the local and remote console terminals.

**UR - Unlock remote (enables modem for remote console, session and dial out modes).

**Important Note:Do Not Use LR/UR Commands unless modem is Ideal or HP Support Modem. Non-Ideal or Non-HP Modems will lock-up and you will need to power cycle modem!


CM>CA <enter>

Current remote support modem port configuration:

Bit rate: 2400 bits/sec

Protocol: Bell

System identification:

Do you wish to change the configuration? (Y/[N]): Y <enter>

Enter your change. <CR> retains the current value.

Current bit rate is 2400 bits/sec. Select the new bit rate.

(0=300, 1=1200, 2=2400, 3=4800, 4=9600, 5=19200): 4 <enter>

Current Protocol is Bell. Select the new protocol.

(0=CCITT, 1=Bell, 2=CCITT_BIS): 1 <enter> (North America uses BELL)

Multifunction I/O PCA Modem Line Behavior (For those who like to know more)

CCITT Mode AP protocol 0 This Works – But don’t use it; the port may disconnect the modem occasionally (See Note* below)

This protocol is known as HP-UX CCITT. The card waits for RI before raising DTR. It also raises RTS when it raises DTR. If DSR does not come up within 25 seconds, DTR goes back down. The connection also depends on CTS and DCD. DCD can drop for up to 400ms before the connection will drop. CTS must stay high always. Once CTS drops, the connection starts to drop. A new connection cannot occur until DSR, DCD and CTS all drop. FS can be programmed to either state via the CA command.

Bell Mode AP protocol 1 Use this protocol in North America (Does not support Hardware Handshake )

This is sometimes called Bell simple protocol. It raises DTR when it can accept a connection. The connection is valid when it sees DCD . It drives RTS whatever it was when Remote is enabled (usually, RTS is low) and does not look at DSR or CTS. When a disconnect is done, DCD must drop before a new connection can be made (i.e. it will not raise DTR until DCD drops).

“If your remote modem is configured for RTS/CTS Flow Control; it will appear to be hung because RTS is always low”

CCITT_BIS Mode AP protocol 2

This protocol is CCITT V.22bis. It requires the special cable A1703-63006 which is just like the 92219Q cable with the exception that pin 9 on the computer end is routed to pin 12 (RS) rather than pin 22 (RI). DTR is raised whenever a connection is allowed. RTS follows DSR. A connection is established when DSR is high. CTS can drop for an indefinite amount of time without dropping the connection. The card will not send data to the modem when CTS is low. DCD can drop for up to 400ms before the connection is dropped. Once the connection is dropped, DSR, DCD and CTS must all go low before a new connection can be made. RS controls what speed the card sends to the modem. If RS is high, the programmed baud rate is used. If RS is low, half of the programmed baud rate is used. If you use the 92219Q cable, the baud rate will most certainly be half the programmed baud rate, since RI will almost always be down. FS can be programmed to either state via the CA command.

*NOTE : CCITT versus BELL:

These protocols are for the local country phone switch systems. You should stick to the one that your local country requires. For North America users, the access port should be configured as BELL. If someone connects from somewhere like Germany where CCITT is used, Bell will work just fine because at the North America end, the phone company switch will use BELL protocols.

Current System identification:

New system identification (limited to 1 to 23 displayable characters or space for none): HP957SX <enter>

New configuration (takes effect at next remote connection):

Bit rate: 9600 bits/sec

Protocol: Bell

System identification: HP957SX CM> ER <enter>

Current remote console access configuration:

Remote CS: Disabled

Mode: Multiple

Password:

Password faults: 03

Do you wish to change the configuration? (Y/[N]): Y <enter>

Enter your changes. <CR> retains the current value.

Remote CS command: Disabled

Select the new setting (E=enabled, D=disabled): E <enter>

Current mode: Multiple

Select the new setting (S=single, M=multiple): M <enter>

Current password:

New password (1 to 18 displayable characters or space if no password is to be required): TEST <enter>

CAUTION!!! – Always enable for a password. This prevents the console status line from appearing upon a remote console connection. The status line has escape sequences included that can cause your terminal to beep with every update. Very annoying.

Current password fault limit: 03

New number of password faults(Range: 0-99 or space. Space or 0 for unlimited password faults): 3 <enter>

New remote console access configuration:

Remote CS: Enabled

Mode: Multiple

Password: TEST

Password faults: 03

Remote console access is now enabled.

CM> UR <enter>

Remote Console answer mode is now unlocked.

This function enables DTR to the modem so the modem will autoanswer. It is not necessary to spoof(fake) DTR by setting DTR always enabled on the modem itself.

You have now completed all the necessary steps to allow a remote modem to be connected for remote console operation. If you want to disable the remote console to allow session modes use the ‘DR’ command. To lockout the modem but keep it in remote console mode use ‘LR’ lock remote command. To return to the system prompt do a:

CM> CO <enter>

“It is strongly recommended you use the same Baud Rate for both Remote Console and Session modes.” Sample Remote Console Session

ATDT4474899

CARRIER 9600 ß Carrier Connection Bit Rate between modems

PROTOCOL: LAP-M <--- Type of carrier modulation protocol (i.e. V.42) in use

COMPRESSION: V.42BIS <--- Advanced compression in use

CONNECT 9600/ARQ <--- error correct in use

LAB HP957SX <--- Access Port System Identification Banner

ENTER PASSWORD:

@

Remote console connected. <control-break sent here>

CAUTION - If your connection looks something like this:

CONNECT 9600/ARQ

Ì Á > ~ f > xÌ x`f f `fxÁfÁ̽̽Ì~± x ½

Check your Access Port Configuration ‘CA’ for Protocol type; make sure it is Bell and not CCITT_BIS

Otherwise you have conflicting compression modes or the remote modem is not setup with the correct Bit Rate (Baud) for the CA setting. Remember, the Access Port cannot speed sense nor can it program the modem without a special routine.

BURN5.5P4:HELLO MANAGER.SYS

CPU=5. Connect=1002. WED, FEB 16, 2000, 9:18 AM.

9:18/#S10/63/LOGOFF ON LDEV #20.

9:18/#S12/63/LOGON FOR: "MANAGER.SYS,PUB" ON LDEV #20.

HP3000 Release: C.55.00 User Version: C.55.00 WED, FEB 16, 2000, 9:18 AM

MPE/iX HP31900 C.05.08 Copyright Hewlett-Packard 1987. All rights reserved.

BURN5.5P4:SHOWME

USER: #S12,MANAGER.SYS,PUB (NOT IN BREAK)

RELEASE: C.55.00 MPE/iX HP31900 C.05.08 USER VERSION: C.55.00

CURRENT: WED, FEB 16, 2000, 9:18 AM

LOGON: WED, FEB 16, 2000, 9:18 AM

CPU SECONDS: 0 CONNECT MINUTES: 1

$STDIN LDEV: 20 $STDLIST LDEV: 20 <--- Notice we are actually LDEV 20

<control-b sent here>

BURN5.5P4:@

CM> ß We are now in Access Port Control Mode CM> ca

Current remote support modem port configuration:

Bit rate: 9600 bits/sec ß LDEV 20 Bit Rate

Protocol: Bell ß Type of modem protocol in use

System identification: LAB HP957SX ß Login Banner

Do you wish to change the configuration? (Y/[N]): n

CM> se ß entering session mode from control mode

MPE/iX:hello manager.sys

HP3000 Release: C.55.00 User Version: C.55.00 WED, FEB 16, 2000, 9:42 AM

MPE/iX HP31900 C.05.08 Copyright Hewlett-Packard 1987. All rights reserved.

BURN5.5P4:showme

USER: #S14,MANAGER.SYS,PUB (NOT IN BREAK)

RELEASE: C.55.00 MPE/iX HP31900 C.05.08 USER VERSION: C.55.00

CURRENT: WED, FEB 16, 2000, 9:42 AM

LOGON: WED, FEB 16, 2000, 9:42 AM

CPU SECONDS: 0 CONNECT MINUTES: 1

$STDIN LDEV: 21 $STDLIST LDEV: 21 <---- Notice that in Session Mode we are LDEV 21



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