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Joined: Jul 2007
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I've already done the activity switch disable on all 3 sx2k systems to isolate which one is 'hosting' the problem. I've separated switchover time-frames by an hour between sites. When I come in each a.m., the faulty circuit shows frame slips toward the CPE. I can clear the problem by either reseting the CSU (Adtran) or loading the formatter I card. I've swapped formatter I with known good and rolled the CSUs.
I've attached the maintenance log showing entries from activity switch start to end, plus the scheduled DBMS check several hours later (this is a typical log from each day at the same time):
2007-OCT-17 05:06:19 MAINTENANCE B/Active *Major* PBX0101 #0052 DBMS info: DBMS CHECK completed. 00 database error(s) detected. 00 form(s) could not be accessed.
2007-OCT-17 02:43:09 MAINTENANCE B/Active *Major* PBX0101 #0051 The PROGRAMMED ACTIVITY SWITCH sequence has COMPLETED.
2007-OCT-17 02:19:26 MAINTENANCE B/Active *Major* PBX0101 #0050 The link from MC215AD Main Controller IIIE at location 01 1 02 Inactive to MC312AB Peripheral Cont I at location 07 1 16 Active is now OPEN.
2007-OCT-17 02:19:25 MAINTENANCE B/Active *Major* PBX0101 #0049 The link from MC215AD Main Controller IIIE at location 01 1 02 Inactive to MC312AB Peripheral Cont I at location 07 1 16 Active is now in SCANNING mode.
2007-OCT-17 02:17:25 MAINTENANCE B/Active *Major* PBX0101 #0048 MC215AD Main Controller IIIE at location 1 1 2 Tone Detector circuit 2 was returned to service
2007-OCT-17 02:17:24 MAINTENANCE B/Active *Major* PBX0101 #0047 The link from MC215AD Main Controller IIIE at location 01 1 07 Active to MC215AD Main Controller IIIE at location 01 1 02 Inactive is now OPEN.
2007-OCT-17 02:17:13 MAINTENANCE B/Active *Major* PBX0101 #0046 MC215AD Main Controller IIIE at location 1 1 2 Conference circuit 3 was returned to service
2007-OCT-17 02:17:03 MAINTENANCE B/Active *Major* PBX0101 #0045 MC215AD Main Controller IIIE at location 1 1 2 Tone Generator circuit 4 was returned to service
2007-OCT-17 02:17:02 MAINTENANCE B/Active *Major* PBX0101 #0044 The link from MC215AD Main Controller IIIE at location 01 1 02 Inactive to MC312AB Peripheral Cont I at location 07 1 16 Active is now OPEN.
2007-OCT-17 02:17:02 MAINTENANCE B/Active *Major* PBX0101 #0043 The link from MC215AD Main Controller IIIE at location 01 1 02 Inactive to MC312AB Peripheral Cont I at location 07 1 16 Active is now in SCANNING mode.
2007-OCT-17 02:15:55 MAINTENANCE B/Active *Major* PBX0101 #0042 MC270AA Universal T1 at location 02 1 03 02 Type of diagnostics : Background Scope of report : Hybrid Reason(s) for report: - Signalling Medium Present
2007-OCT-17 02:15:55 MAINTENANCE B/Active *Major* PBX0101 #0041 MC270AA Universal T1 at location 02 1 03 01 Type of diagnostics : Background Scope of report : Hybrid Reason(s) for report: - Signalling Medium Present
2007-OCT-17 02:15:45 MAINTENANCE B/Active *Major* PBX0101 #0040 The link from MC215AD Main Controller IIIE at location 01 1 07 Active to MC215Ax Main Controller IIIE at location 01 1 02 Inactive is now CLOSED.
2007-OCT-17 02:15:42 MAINTENANCE B/Active *Major* PBX0101 #0039 ---------------+--------+-------+-------+-------+---------+---------+---------- |Total In| Unavailable | Alarm Threshold Percentages Category | System | Total | % | Alarm | MINOR | MAJOR | CRITICAL ---------------+--------+-------+-------+-------+---------+---------+---------- Trunks | 146 | 23 | 15 % | Major | > 0 % | 10 % | 100 % | Digital Links | 6 | 1 | 16 % | Major | - | > 0 % | - | ---------------+--------+-------+-------+-------+---------+---------+----------
2007-OCT-17 02:15:42 MAINTENANCE B/Active *Major* PBX0101 #0038 ------------ Current System Alarm : | MAJOR | viewed from Active ------------
2007-OCT-17 02:15:23 MAINTENANCE B/Active -Info- PBX0101 #0037 MC215AD Main Controller IIIE at location 1 1 7 Tone Detector circuit 2 was returned to service
2007-OCT-17 02:15:20 MAINTENANCE B/Active -Info- PBX0101 #0036 MC263BA DS1 Formatter at location 03 1 05 01 Type of diagnostics : Background Scope of report : Hybrid Reason(s) for report: - Far end alarm : Present
2007-OCT-17 02:15:20 MAINTENANCE B/Active -Info- PBX0101 #0035 MC215AD Main Controller IIIE at location 1 1 2 Tone Detector circuit 2 was returned to service
2007-OCT-17 02:15:20 MAINTENANCE B/Active -Info- PBX0101 #0034 MC312AB Peripheral Cont I at location 8 1 16 DTMF Receiver circuit 7 was returned to service
2007-OCT-17 02:15:20 MAINTENANCE B/Active -Info- PBX0101 #0033 MC312AB Peripheral Cont I at location 8 1 16 DTMF Receiver circuit 1 was returned to service
2007-OCT-17 02:15:20 MAINTENANCE B/Active -Info- PBX0101 #0032 MC312AB Peripheral Cont I at location 5 1 16 DTMF Receiver circuit 7 was returned to service
2007-OCT-17 02:15:20 MAINTENANCE B/Active -Info- PBX0101 #0031 MC312AB Peripheral Cont I at location 5 1 16 DTMF Receiver circuit 1 was returned to service
2007-OCT-17 02:15:16 MAINTENANCE B/Active -Info- PBX0101 #0030 ACTIVITY SWITCH to MC215AD Main Controller IIIE at location 01 1 07 from MC215AD Main Controller IIIE at location 01 1 02 was SUCCESSFUL. The reason(s) for the switch attempt : - Programmed Activity Switch
2007-OCT-17 02:15:16 MAINTENANCE B/Active -Info- PBX0101 #0029 MC215AD Main Controller IIIE at location 1 1 2 Conference circuit 3 was returned to service
2007-OCT-17 02:15:16 MAINTENANCE B/Active -Info- PBX0101 #0028 MC215AD Main Controller IIIE at location 1 1 2 Tone Generator circuit 4 was returned to service
2007-OCT-17 02:15:14 MAINTENANCE B/Active -Info- PBX0101 #0027 MC312AB Peripheral Cont I at location 4 1 16 DTMF Receiver circuit 7 was returned to service
2007-OCT-17 02:15:14 MAINTENANCE B/Active -Info- PBX0101 #0026 MC312AB Peripheral Cont I at location 4 1 16 DTMF Receiver circuit 1 was returned to service
2007-OCT-17 02:15:12 MAINTENANCE B/Active -Info- PBX0101 #0025 MC312AB Peripheral Cont I at location 7 1 16 DTMF Receiver circuit 7 was returned to service
2007-OCT-17 02:15:12 MAINTENANCE B/Active -Info- PBX0101 #0024 MC312AB Peripheral Cont I at location 7 1 16 DTMF Receiver circuit 1 was returned to service
2007-OCT-17 02:15:10 MAINTENANCE B/Active -Info- PBX0101 #0023 MC312AB Peripheral Cont I at location 06 1 16 installed
2007-OCT-17 02:15:10 MAINTENANCE B/Active -Info- PBX0101 #0022 MC312Ax Peripheral Cont I at location 06 1 16 removed
2007-OCT-17 02:15:08 MAINTENANCE B/Active -Info- PBX0101 #0021 MC215AD Main Controller IIIE at location 1 1 7 Conference circuit 3 was returned to service
2007-OCT-17 02:15:08 MAINTENANCE B/Active -Info- PBX0101 #0020 MC215AD Main Controller IIIE at location 1 1 7 Tone Generator circuit 4 was returned to service
2007-OCT-17 02:15:08 MAINTENANCE B/Active -Info- PBX0101 #0019 MC312AB Peripheral Cont I at location 6 1 16 DTMF Receiver circuit 7 was returned to service
2007-OCT-17 02:15:08 MAINTENANCE B/Active -Info- PBX0101 #0018 MC312AB Peripheral Cont I at location 6 1 16 DTMF Receiver circuit 1 was returned to service
2007-OCT-17 02:15:07 MAINTENANCE B/Active -Info- PBX0101 #0017 MC215AD Main Controller IIIE at location 1 1 7 Tone Detector circuit 2 was taken out of service due to loss of sanity
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These logs just show the system coming back on line after a reboot, When you come in the morning can you make a call over each one of your tie circuits before you reset anything? does the call fail or are you basing your failure on the "indeterminate " status of the circuit? Have you tried doing a DT Clear (plid) to clear up any alarms?
"the faulty circuit shows frame slips toward the CPE" Where are you getting this info from? what piece of equipment is telling you this?
The 2K will show you a digital link alarm if there is a problem like slips,clocking, carrier failure. and Doing a DT Clear will correct these errors. They are info alarms to let you know something has happened that requries some attention but not usually service effecting.
Let us know
Alex Kroger Pinnacle Communications Corp Mitel/Hitachi Nationwide Hospitality Provider
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Joined: Jul 2007
Posts: 23
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Disregard the "indeterminate" status, the trunks are "not seizable". Calls will not go over the link.
Each morning when I arrive, it's a major alarm, and calls route to 2nd choice. ********************************************** Current System Alarm : | MAJOR | viewed from Active ------------
---------------+--------+-------+-------+-------+---------+---------+---------- |Total In| Unavailable | Alarm Threshold Percentages Category | System | Total | % | Alarm | MINOR | MAJOR | CRITICAL ---------------+--------+-------+-------+-------+---------+---------+---------- Trunks | 146 | 23 | 15 % | Major | > 0 % | 10 % | 100 % | Digital Links | 6 | 1 | 16 % | Major | - | > 0 % | - | ---------------+--------+-------+-------+-------+---------+---------+---------- *************************************
A stat of the affected card:
************************************* 3 1 5 1 1| DS1 Formatter | Not Seizable | | | 3 1 5 1 2| DS1 Formatter | Not Seizable | | | 3 1 5 1 3| DS1 Formatter | Not Seizable | | | 3 1 5 1 4| DS1 Formatter | Not Seizable | | | 3 1 5 1 5| DS1 Formatter | Not Seizable | | | 3 1 5 1 6| DS1 Formatter | Not Seizable | | | 3 1 5 1 7| DS1 Formatter | Not Seizable | | | 3 1 5 1 8| DS1 Formatter | Not Seizable | | | 3 1 5 1 9| DS1 Formatter | Not Seizable | | | 3 1 5 1 10| DS1 Formatter | Not Seizable | | | 3 1 5 1 11| DS1 Formatter | Not Seizable | | | 3 1 5 1 12| DS1 Formatter | Not Seizable | | | 3 1 5 1 13| DS1 Formatter | Not Seizable | | | 3 1 5 1 14| DS1 Formatter | Not Seizable | | | 3 1 5 1 15| DS1 Formatter | Not Seizable | | | 3 1 5 1 16| DS1 Formatter | Not Seizable | | | 3 1 5 1 17| DS1 Formatter | Not Seizable | | | 3 1 5 1 18| DS1 Formatter | Not Seizable | | | 3 1 5 1 19| DS1 Formatter | Not Seizable | | | 3 1 5 1 20| DS1 Formatter | Not Seizable | | | 3 1 5 1 21| DS1 Formatter | Not Seizable | | | 3 1 5 1 22| DS1 Formatter | Not Seizable | | | 3 1 5 1 23| DS1 Formatter | Not Seizable | | |
********************************* DTS for the last 24 hours:
********************************* DS1 Formatter 3 1 5 1 Link is not available, receiving lost of multiframe level max avg mode duty bit 2 re- CRC re- re- con- cycle framing error Time resets trans error trans trans gestion (%) losses slips rate ----------------------------------------------------------------------------- 6:08 0 0 0 0 0 0 0 0 0 0 6:00 0 0 0 0 0 0 0 0 0 0 5:00 0 0 0 0 0 0 0 0 0 0 4:00 0 0 0 0 0 0 0 0 0 0 3:00 0 0 4 3 3 0 25 5 1 0 2:00 0 0 0 4 2 0 100 0 0 0 1:00 0 0 0 3 2 0 100 0 0 0 0:00 0 0 0 4 2 0 100 0 0 0 23:00 0 0 0 4 3 0 100 0 0 0 22:00 0 0 0 0 0 0 100 0 0 0 21:00 0 0 0 4 3 0 100 0 0 0 20:00 0 0 0 3 3 0 100 0 0 0 19:00 0 0 0 4 2 0 100 0 0 0 18:00 0 0 0 4 2 0 100 0 0 0 17:00 0 0 0 4 2 0 100 0 0 0 16:00 0 0 0 4 2 0 100 0 0 0 15:00 0 0 0 4 2 0 100 0 0 0 14:00 0 0 0 4 2 0 100 0 0 0 13:00 0 0 0 4 2 0 100 0 0 0 12:00 0 0 0 4 2 0 100 0 0 0 11:00 0 0 0 4 2 0 100 0 0 0 10:00 0 0 0 4 2 0 100 0 0 0 9:00 0 0 0 4 2 0 100 0 0 0 8:00 0 0 0 4 2 0 100 0 0 0 7:00 0 0 0 2 1 0 70 0 0 0 -----------------------------------------------------------------------------
The other "frame slips" error is read from the CSU. The external CSU is used to convert AMI/D4 from the PBX to ESF/B8ZS from the carrier.
I'd like to verify the particular settings in the Link Descrip form:
**************************************
ââ€â€šAddress for Message Control (A/B). . . . . . . . . . . . . B ââ€â€š ââ€â€šBER - Maintenance Limit, 10**-n, n=(3,4,5,6) . . . . . . . 4 ââ€â€š ââ€â€šBER - Service Limit, 10**-n, n=(3,4,5,6) . . . . . . . . . 3 ââ€â€š ââ€â€šData Call Alternate Digit Inversion (Yes/No) . . . . . . . Yes ââ€â€š ââ€â€šFraming Losses in 24 hrs - Maintenance Limit (0-9000). . . 255 ââ€â€š ââ€â€šFraming Losses in 24 hrs - Service Limit (0-9000). . . . . 9000 ââ€â€š ââ€â€šIntegrated Digital Access . . . . . . . . . . . . . . . . DPNSS ââ€â€š ââ€â€šQSIG Private Network Access (Yes/No) . . . . . . . . . . . No ââ€â€š ââ€â€šVendor Inter-working Type . . . . . . . . . . . . . . . . . ââ€â€š ââ€â€šSatellite Link Delay (Yes/No). . . . . . . . . . . . . . . No ââ€â€š ââ€â€šSlip Rate - Maintenance Limit (0-9000) . . . . . . . . . . 255 ââ€â€š ââ€â€šSlip Rate - Service Limit (0-9000) . . . . . . . . . . . . 7000 ââ€â€š DS1 Parameters: ââ€â€š ââ€â€šAlarm Debounce Timer - Service Limit (300-3200). . . . . . 500 ââ€â€š ââ€â€šB8ZS Zero Code Suppression - (Yes/No). . . . . . . . . . . No ââ€â€š ââ€â€š ââ€â€š ââ€â€š Universal T1 and Enhanced Dual T1 Card only: ââ€â€š ââ€â€šOperation Mode (CSU/DSX-1) . . . . . . . . . . . . . . . . CSU ââ€â€š ââ€â€šCSU Tx Line Build-Out(0,7.5,15,22.5 db). . . . . . . . . . 0 ââ€â€š ââ€â€šDSX-1 line Length(0-133,134-266,267-399,400-533,534-655 ft) 0-133 ââ€â€š ââ€â€šExtended Super Frame (Yes/No). . . . . . . . . . . . . . . No ââ€â€š ââ€â€šInverted D channel ( DPNSS only ) (Yes/No) . . . . . . . . Yes ââ€â€š Universal E1 and Enhanced Dual E1 only: ââ€â€š ââ€â€šCRC-4 enabled(Yes,No). . . . . . . . . . . . . . . . . . . No ââ€â€š ââ€â€šE1 line Length(0-133,134-266,267-399,400-533,534-655 ft) . 0-133 ââ€â€š ââ€â€šE1 Impedance (75,120 ohms) . . . . . . . . . . . . . . . . 120 ââ€â€š ââ€â€š ââ€â€š ââ€â€š Italian Parameters: ââ€â€š ââ€â€šDigital Link Fault Delay Timer (0-360 sec) . . . . . . . . 240 ââ€â€š ââ€â€š ââ€â€š ââ€â€š Universal T1/E1 Coding Conversion Parameters: ââ€â€š ââ€â€šVoice conversion (Nil/ADI/Invert/Inverted ADI). . . . . . . Nil ââ€â€š ââ€â€šData conversion (Nil/ADI/Invert/Inverted ADI). . . . . . . Nil ââ€â€š ***********************************
Thanks again for your input!
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Log into maintenance, and issue the command Back off ds1. That will turn off the back ground diagnostics for the Ds1 channels. Check tomorrow morning to see if it's had an effect on your symptons. Contact us anytime if we can be of any assistance!
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2007-OCT-17 02:15:20 MAINTENANCE B/Active -Info- PBX0101 #0036 MC263BA DS1 Formatter at location 03 1 05 01 Type of diagnostics : Background Scope of report : Hybrid Reason(s) for report: - Far end alarm : Present
CSU reports frame-slips toward the CPE side, clear to the network
CSU is reporting Slips, DTS shows 1 at 3:00 What model of Aldtran are you using? What is your first clock source?
“Far end alarm: Present†indicates CSU / far end setting an alarm…
“Operation Mode (CSU/DSX-1) . . . . . . . . . . . . . . . . CSU†If you have an external CSU, this should be set to DSX-1
Are there any logs prior to activity switch… inactive plane.
Have you tried another CSU? Have you tried a new DS1 card or swapping with the one going to the 3300?
If you change to a Formatter II card, you can do away with the external CSU.
JimmyV
"Well informed people know it is impossible to transmit the voice over wires. Even if it were, it would be of no practical value" Boston Post, 1865
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Joined: May 2005
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"not seizable" is losing channels from the CSU or Carrier, I would follow JimmyV's suggestions of changing or eliminating the CSU and roll formatters to see if problem follows card.
Let us know
Alex Kroger Pinnacle Communications Corp Mitel/Hitachi Nationwide Hospitality Provider
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Joined: Jul 2007
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wow - great input, thank you.
Yes, I've rolled the CSUs and Formatter I cards, nothing follows the hardware. The errors occur on either of the 2k P2Ps, sometimes random, sometimes both. Never occurs on P2Ps attached to 3300. I've swapped DSU to eliminate backplane & power supply. Clocking is set to c.o. PRIs as 1st choice.
I only like changing one thing at a time, but I'll kill background diags and change DSX/CSU flag to indicate use of external CSUs, will advise tomorrow.
I've also recommended to mgmnt (a while back) that we 'upgrade' to Formatter II cards to eliminate the external CSUs.
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Joined: Jan 2007
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Your digital link desc shows address for msg control set to B - have you verified that the other end of the link is set to A? Also - B8ZS Zero Code Suppression - could be set to yes on both ends.
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yes, message control (near end=A far end=B) is set ok for all nodes. Please clarify: you're suggesting B8ZS is set = yes for an AMI/D4 trunk? It's B8ZS/ESF to the carrier (converted at the CSU), but AMI/D4 to the pbx.
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Joined: Jul 2007
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All is well this morning - no errors. I'll post again after a few days of running clean. Thanks all for your input.
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OS 7030
by Bushmills - 09/03/24 12:42 PM
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