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Issue:
How to troubleshoot the 394 controller.
Solution: 1. FIXED FRONT PANEL DISPLAY
A. No display segments lit
I. Is power cord plugged into 394 unit? No,
- Plug it in.
II. Is power cord plugged into receptacle? No,
- Plug it in.
III. Is problem resolved? No,
- Test receptacle to determine whether there is power. If there is power at the receptacle, replace the Perle 394 unit.
B. Fixed display segments
I. Front panel displays CF
a. Are you configuring now? No,
- Set config/normal switch on communications card to normal, power off and power on the Perle 394.
b. Are you configuring now? Yes,
- The condition is normal, proceed with configuration.
II. Front panel displays H0
a. No configuration information is available on the 394 system diskette. Set the config/normal switch on the communications card to the config position. Power off the controller and then power it on again. Proceed with configuration. Ensure that you save the configuration to disk before exiting the configuration program.
III. Front panel displays one of the following: 01, 02 - 99
a. Reseat all cards.
b. Replace 394 communications card.
c. Replace 394 controller card. To determine which controller card, remove one controller card at a time and power on the Perle 394. Repeat the process until the error clears.
IV. Front panel displays 8.8
a. Reseat all cards.
b. Replace 394 communications card.
V. Front panel displays one of the following: A0, A1 - AF
a. Replace 394 system diskette.
b. Replace 394 communications card
VI. Front panel displays one of the following: b0, b1 - bf
a. Replace 394 system diskette
b. Replace 394 communications card.
c. Replace 394 floppy disk drive.
VII. Front panel displays one of the following: 1.E,2.E,3.E,4.E,5.E
a. The controller card in the slot designated by the first digit in the display segment is reporting an error. Refer to sections 3 & 4 for TWINAXIAL or ASCII CARD
TROUBLESHOOTING.
VIII. Front panel displays one of the following: F.0, F.1 - F.F
a. Re-boot 394 unit.
b. Replace 394 communications card.
c. Replace 394 floppy disk drive.
IX. Front panel displays one of the following: -.1,-.2,-.3,-.4,-.5
a. Reseat twinax card in the slot designated by the first digit in the display segment.
b. If problem persists, replace the twinax card.
X. Front panel displays one of the following: PL, PO, bu
a. Replace 394 system diskette.
b. Replace 394 communications card
c. Replace 394 floppy disk drive.
2. CYCLING FRONT PANEL DISPLAY
C. Cycling display segments
.I. Changes to the Environment.
a. Have any changes been made to the environment before the problem began. For example, have any upgrades or the addition of devices or configuration changes been made to the communication line or modems, or host operating system or the Perle 394 or the building structure... Take appropriate action based on the specific changes which may have occurred.
II. Front panel display cycles between HO and 11,21,31,41 or 51
a. Is host line active ? No,
- Vary on host line.
b. Does host line remain in a "varied on pending" or "recovery pending" state? Yes,
- Check host attached modem or DSU/CSU with the Telco.
- Verify host configuration.
c. Does the host report any "internal" system or "partial damage" error messages? Yes,
Reset the host IOP.
- Delete the existing Line and RWS controller descriptions on the host and recreate them again.
- If problem persists, report host problem to IBM.
d. All display workstation screens are blank with the cursor in the upper left and / or reporting SRC error codes 0040, 0043 or 0051.
- Check communications cable is secured between the modem and the Perle 394 communications port .
- Check position of "host select" switch on the communications card.
- Verify Perle 394 and host configurations. Refer to the appropriate configuration document. Note: NRZI data encoding.
- Replace the Perle 394 system diskette.
- Check the communications line and modems or DSU/CSU with the Telco.
e. Are all display workstations blank with the cursor in the upper right? YES,
- Refer to sections 3 & 4 for TWINAXIAL or ASCII CARD TROUBLESHOOTING.
f. Is the Perle 394 operational now? No,
- Replace the 394 communications card.
III. Front panel display cycles between H1 and one or more of the following codes:
H1 and 11, 21, 31, 41, 51
H1 and 12, 22, 32, 42, 52
H1 and 13, 23, 33, 43, 53
H1 and 14, 24, 34, 44, 55
H1 and 15, 25, 35, 45, 55
H1 and 16, 26, 36, 46, 56
H1 and 17, 27, 37, 47, 57
H1 and 19, 29, 39, 49, 59
H1 and 1A, 2A, 3A, 4A, 5A
a. Re-boot the Perle 394.
b. Vary off host line and vary it on again.
c. Does the host report any "internal" system or "partial damage" error messages? Yes,
- Reset the host IOP.
- Delete the existing Line and/or RWS controller and device descriptions on the host and recreate them again.
- If host problem persists, report it to IBM.
d. Check communications line and modems or DSU/CSUs with the Telco. A faulty
communication line or modem or DSU/CSU can cause the above cycling status codes to appear. Instruct the Telco to run a data stress test from the remote site and in addition verify the setup on the modems or DSU/CSUs.
NOTE: Ensure that all modems or DSU/CSUs are setup for Synchronous operation, internal clocking, DSR "on". On a multipoint line, modems or DSU/CSUs located at the Host site should be setup for constant carrier. At the remote site, modems or DSU/CSUs should be setup for either switched or controlled carrier.
On a point-to-point line, modems or DSU/CSUs should be setup for constant carrier,however, controlled or switched carrier setup will also work on a point-to-point line.
e. Verify configuration on the Perle 394 and host. Refer to the appropriate configuration documentation. Note the controller address.
f. Is the Perle 394 operational now? No,
- Replace the Perle 394 unit.
IV. Front panel display cycles between H1 and one or more of following codes 18,28,38,48,58
a. Do all display workstations obtain a host sign-on screen? No,
- Refer to sections 3 & 4 for TWINAXIAL or ASCII CARD TROUBLESHOOTING.
b. Do one or more display workstations drop off line ? Yes,
- Refer to sections 3 & 4 for TWINAXIAL or ASCII CARD TROUBLESHOOTING.
c. Is display workstation reporting one of the following 4-digit keyboard entry error
codes? Yes,
- Press the error reset key to clear the error code and refer to the matching
error code below to correct the problem.
0000 - help key is not valid
0001 - keyboard overrun
0002 - invalid scan code
0003 - invalid key followed CMD or ALT key
0004 - keyboard input not allowed in this field
0005 - cursor in protected area of display
0006 - invalid key followed System Request key
0007 - mandatory entry field not filled in
0008 - only alphabetical data is allowed
0009 - only numeric data is allowed
0010 - only characters 0 through 9 allowed
0011 - key not allowed in last position of signed numeric field
0012 - no room to insert data in this field
0013 - terminal still in insert mode, only data keys allowed
0014 - mandatory fill field, must be filled or empty
0015 - self-check field error
0016 - field only allows numeric, digits, or signed numeric
0017 - mandatory field must be filled or empty
0018 - non-data key must be pressed to exit from this field, use field
exit.
0019 - dup key not permitted
0020 - function key not valid for right adjust field
0021 - data must be entered in mandatory enter field
0022 - system error
0023 - hexadecimal mode error
0024 - invalid key; only 0 through 0 and dup key allowed
0026 - numeric only field error
0027 - key not valid on this display station
0028 - key not valid on this display station
0029 - diacritic character not valid
0036 - cursor select key not allowed; field exit required
0037 - cursor select key not allowed in non-selectable field
0077 - function key selection not valid or 3270 local keyboard
functions not allowed.
0081 - configurations error; too many devices attached (remove extra
devices), or there are devices attached to port 3 in 5394 mode
0083 - configuration error; keyboard code entered for a printer or a
device at a position without a display.
008D - printer port and/or station address valies are invalid
0099 - no session with host established
7777 - multisession hot key not supported for this display
DE0X - disk error; check that disk is properly inserted into the drive
and not write-protected. Try the backup copy of controller
software. If problem persists, replace the Perle 394 unit.
3. TWINAXIAL CARD TROUBLESHOOTING
I. All display workstations on all ports - blank screens - cursor in the upper right .
a. Verify that all cable connections are secured between the 394 twinaxial ports and workstations.
b. Are you using a HUB ? Yes,
- Check that the HUB is operational.
c. Re-boot the Perle 394.
d. Are all display workstations operational now? No,
- Replace the 394 twinaxial card.
II. All display stations on all ports - blank screens - cursor in the upper left .
a. Is host RWS controller description in an "active" state? No,
- Vary on host RWS controller.
b. Are host devices in a "varied on" or "varied on pending" state? Yes,
- Vary off and vary on again the host RWS controller.
c. Verify configurations. Possibly incorrect or incomplete configurations on both thePerle 394 and host. Refer to appropriate documentation.
d. Does the host report any "internal" system or "partial damage" error messages? Yes,
- Reset the host IOP.
- Delete the existing RWS controller and device descriptions on the host and recreate them again.
- If host problem persists, report it to IBM.
e. Reboot the Perle 394.
f. Check communications line and modems or DSU/CSUs with the Telco.
g. Are all display stations operational now? No,
Replaced the controller software diskette.?Yes
Replace the 394 twinaxial card.
III. All display workstations on the same port - blank screens - cursor in the upper right .
a. Determine whether the 394 Twinaxial port is defective. Move the cable from a known working port over to the suspect port. The port can be considered to be working if thecursor moves over to the top left corner. The LED located beside the port on the Perle 394 Twinaxial card should turn on.
b. Are you using twinaxial cable? Yes,
- Check the cable being used between the 394 twinax port and the first twinaxial device on that port.
- Check for duplicate device addresses.
c. Are you using a HUB ? Yes,
- Check that the HUB is operational. Check the cable and baluns used between the 394 twinaxial port and the HUB port.
d. Are all display workstations operational now? No,
- Replace the 394 twinaxial card.
IV. All display workstations on the same port - blank screens - cursor in the upper left .
a. Is the port LED "on" but randomly going "off" for one second and then back on? Yes,
- Check for a faulty device and/or cable.
- Check for a duplicate device address.
- Check for proper termination on the last twinaxial device on that port.
- Power off all devices and power on one at time to isolate the problem.
- If using a HUB, check that the HUB is operational. Move devices over to a known working HUB.
b. Is the port LED "on" solid ? Yes,
- Reset all devices attached to that port.
- Vary off and vary on again the host line description.
- Reboot the 394 unit with the backup copy of the controller software.
- Check the host for system messages. Correct any host recognized problem and/or report to IBM if necessary.
c. Are all display workstations operational now? No,
- Replace the 394 twinaxial card.
V. Single display workstation - blank screen - cursor in the upper right.
a. Are you using twinaxial cable? Yes,
- Check the twinaxial cable to that device.
- Check the T-connector at that device. Replace T-connector with a known working one.
- Defective display terminal.
- Check for proper termination at the last device on the port.
- Possible 394 software problem. Report to Perle Customer Support.
b. Are you using a HUB ? Yes,
- Check cable between the device and the HUB port.
- Check HUB port connection. To verify, insert the display workstation into a known working port on the HUB. The cursor on the display should show up in the top left corner.
- Check the balun. Replace the balun with a known working one. Ensure that the baluns are matching pairs.
c. Check for a faulty display workstation. Replace the workstation with a known working one and configure it with the same device address.
d. Check for duplicate device addresses on the same twinaxial port. Check any dual session display workstations for conflicting addresses. If using 5394 mode and the device is on port 3 and there is an address re-mapped to this device, return the 394 controller card configuration back to factory default or replace the system diskette with a new one and reconfigure it.
e. Reboot the Perle 394.
f. Are all devices operational now? No,
- Replace the Perle 394.
VI. Single display station - blank screen - cursor in the upper left.
a. Is host device in a "varied on pending" state? No,
- Vary on host device.
b. Is host device presently in a "varied on" or "varied on pending" state? Yes,
- Vary host device off and then on again.
c. Check for duplicate device addresses on the same twinaxial port. Check any dual session display workstations for conflicting addresses. If using 5394 mode and device is on port 3 and there is an address re-mapped to this device, return the 394 controller card configuration back to factory default or replace the system diskette with a new one and reconfigure it.
d. Check for a faulty display workstation. Replace the workstation with a known working
one and configure it with the same device address.
e. Delete the existing device description and recreate it again.
f. Re-boot the Perle 394.
g. Is device operational now? No,
- Replace the 394 twinaxial card.
4. ASCII CARD TROUBLESHOOTING
I. One or more ASCII display workstations fail to connect.
a. Is host device in a "varied on pending" or "vary on" state? No,
- Vary on host device.
b. Verify that the ASCII workstation address configured in the Perle 394 "port
definition" and "workstation definition" matches the host device description.
c. Verify that the correct device type is being used to connect to the ASCII port. Ensure
that the correct device type is configured in the Perle 394 "port definition".
d. If using a Personal Computer, ensure that the configured baud rate in the Terminal
emulation program (for example, PerleTalk s/w…) does not exceed the capability of
the PC’s serial communications port. Configure the Terminal emulation program
for a slower baud rate or upgrade the PC’s serial communications card.
e. If using modems, check the following:
- Reset the modems and the ASCII workstation.
- Verify that the internal DTE/DCE port switch setting on the Perle 394
ASCII card is set to the DTE position.
- Verify that the "Device Ready Method" in the Perle 394 ASCII port is
configured for "DCDDSR".
- Check the cable between the Perle 394 ASCII port and attached modem,and between the ASCII workstation and attached modem. Check cable pin specs. Pins 1 through 8 and pin 20 is required.
- Verify that the baud rate configured on the Perle 394 ASCII port is equal to or higher than the baud rate configured in the ASCII workstation.
- Verify that the baud rate configured in the ASCII workstation does not exceed the capability of the modems. Configure for a slower baud rate.
- Verify that the communication parameters (handshaking, data bits, parity, stop bits) configured in the Perle 394 ASCII port definition match the modems and the ASCII workstation.
- Check for a failed modem. Replace the modem with a known working modem.
- Verify that the modem is configured for the correct modem initialization string. Note auto-answer (S0=1) for the ASCII port attached modem. Increase the register (S7=60) in the modem initialization string for the PC attached modem. Refer to the modem manufacturers manual or appropriate documentation for recommended modem initialization strings.
- Check for a faulty or intermittent data circuit. Connect modems to a known working data circuit. Check data circuit with the Telco.
- If using an internal phone system (PBX), isolate the problem by using an outside line. Check the operation of this equipment with the service provider.
- If using a hunt group (rollover switch), check the operation of this equipment with the service provider.
f. If using a directly attached ASCII workstation, check the following:
- Verify that the internal DTE/DCE port switch setting on the ASCII card is set to the DCE position.
- Verify that the "Device Ready Method" in the Perle 394 ASCII port is configured for "DTR".
- If using a PC, verify that the configured baud rate in the Terminal emulation program (for example, PerleTalk s/w …) does not exceed the capability of the PC’s serial communications card. If necessary, configure the Terminal emulation program for a slower speed or upgrade the serial communication card in the PC.
- Check the straight-through communications cable between the Perle 394 ASCII port and the ASCII workstation. Replace with a known working cable. Check cable pin specs. Pins 1 through 8 and pin 20 is required.
h. Re-boot the Perle 394 with the configured s/w backup copy.
i. Is problem resolved? No,
- Replace the 394 ASCII card.