linking two norstars using a point to point

[edmunddantes]

I am trying to link two remote MICS' in two different states using a point to point. I have set up routes on both sides. When I program the sites as E&M I can start a call but it will not go through, when it is programmed as Loop it only says no free lines. Qwest says that it shouldn't matter what they are set up as so long as they both match. Has anyone tried doing this and if so how did you get it to work.

TIA
Edmund

 

[serviceboy]

clocking...????

"There are those who would make you believe there are no choices left.That they have the last word and its final.To those who try the world is wide open choices many.To those who dont only death awaits you.

 

[edmunddantes]

framing is b8zs, esf, programmed E&M wink start.

 

[serviceboy]

no no no clocking not framming who is supplying it


T1 Installation/Trouble Shooting Tip
The following tip is intended to outline the necessary hardware and programming required for T1 installation a Modular ICS KSU. Additionally, this also contains a section devoted to trouble shooting T1 issues on the Modular ICS.

Required Equipment

Digital Trunk Interface (DTI) Cartridge
Clock Services Cartridge or Combo cartridge(for use with XL and XC software)
The services cartridge fits into slot 1 only and must be installed for T1. It provides Clocking service, digital signal processing for dial tone detection and DTMF reception calls on T1 lines. Because the services Cartridge uses slot 1, a fiber expansion cartridge must be used in conjunction with T1 on Modular ICS. Systems with XL or XC software will support 2 expansion cartridges and must have a Combo cartridge on T1 applications. The combo cartridge combines the clock services circuitry and 6 port expansion circuitry on one card.

The Digital Trunk Interface Cartridge or (DTI) allows the Norstar to be connected directly to the T1 Digital Network via an Rj48C modular connector. Each DTI card supports 24 channels and is equipped with a built in Channel Service Unit or (CSU) for monitoring the integrity of digital signaling. The Modular ICS will support t a maximum of 2 DTI cards. DTI cards must be installed in slots 3 and 4. Trunk card one is installed in slot 4 for lines 1 through 24 and trunk card two is installed in slot 3 for lines 25 through 48. Information regarding the pinout of the RJ 48 C modular connector can be found on page 67 in the Modular ICS Installer guide.

Programming
Installing a Modular ICS with T1 requires three maintenance programming steps:

Disable the trunk cartridge Detailed information regarding module status can be found on page 208 of the installation guide.
Configure trunk cartridge type as T1 To initialize a DTI card, begin by entering configuration and showing trunk line data. In trunk line data TC1 or TC2 depending on which slot the card is in must be configured as TC1. Norstar will not recogniT1 unless TC1 or TC2 is configured T1.
Then, Set the Clt the Clock source for each DTI. Detailed information regarding clocking can be found starting on page 228 of the installation guide. The settings are:
A. Primary Reference
B. Secondary Reference
C. Timing Master
Note On the Norstar there can only be one primary reference and one secondary reference per system.
Finally, provision or de-provision each DTI. Channels that are not going to be used should be de-provisioned. The default for this setting is provisioned which means the channel is available to be used. Provisioning information can be found on page 234 of the installation guide.
Configure the T1
The following attributes must be configured for each T1 card. Information regarding these attributes can be found starting on page 110 of the installation guide.
The first is Disconnect timer this specifies the duration of an open switch interval before the disconnect supervision feature disconnects a call on a supervised external line. This setting is adjustable from 60 to 600 milli seconds, the default is 460 milli seconds.

The Answer Timer sets the minimum duration of an answer signal before a call is considered to be answered. This setting would only apply to calls made over E&M tie lines. This setting is adjustable from 1 to 5 seconds and the default is 2 seconds.

C.O. FAIL sets the standard for reporting errors to the T1 service provider. The Norstar supports T1A-547A OR TR64211. This information would be provided by your T1 service provider.

The Framing option sets the framing format used by your T1 service provider. The Norstar supports either super frame or extended super frame. This information would be provided by your T1 service provider.

The Channel service unit which is built into the DTI, is the termination point of the T1 lines from the service provider. The channel service unit collects statistics on the quality of the T1 signal and is required by the FCC to ensure compliance to network rules. Some providers may supply a CSU with the T1 service. The CSU in the Norstar must be configured appropriately of the T1 to operate.

The Channel service Unit or CSU may be configured to be on or off. If set to ON then set CSU line build to 0, 7.5 or 15. this sets the volume level of the transmitted signal, the default value is 0 dB. This is a regulatory requirement and the proper level should be provided by your T1 service provider when ordering the T1 service.

If the CSU is configured to OFF then an external CSU is required and the DSX build must be set. The DSX build is the distance in feet of the external CSU form the Norstar. This can be configured for 0 to 700 feet.

Line Coding sets the line encoding format used by the T1 service provider. The Norstar supports either B8Zs or AMI

Program individual lines
There are 3 types of lines supported on the Norstar Release 1 T1, XL and XC 1.0, Loop, D.I.D. and E&M. There are 4 types of lines supported on the Norstar MICS DR1.1 and XC 1.1, Loop, D.I.D., E&M and Ground start. These line types will vary depending on customer needs and must be configured in Norstar to match the line type provided by the service provider. Line/trunk programming and the corresponding attribute information can be found in the installation guide starting on page 119.
Enable DTI cartridge
On a live system the DTI circuit in-service LED should go to a steady green to indicate proper operation. Automatic Number Identification/Dialed Number Identification Service.
Another feature of the Modular ICS is the ability to recognize Automatic Number Identification ANI and Directory Number Identification Service DNIS. ANI and DNIS information is typically delivered in one of two formats from your service provider, Multi frequency MF or Dual Tone Multi Frequency DTMF. The Norstar supports ANI and DNIS in a DTMF mode only. Additionally, some signaling formats for ANI and DNIS do not require delimiters. The Norstar only supports signaling formats that utilize the asterisk tone to delimit the start and stop of ANI and DNIS Strings. To date, we have found that the delivery of ANI and DNIS over T1 in Norstar compatible format can only be provided as a D-Channel message only. This means that an application such as Cinphony ACD which is communicating with the Norstar through the D-Channel would be required in order to make use of the DNIS information.

T1 Trouble Shooting

On new installation that are not working the first thing to check is the face plate of the DTI. The LED's offer a visual indication of potential circuit issues. The LED's will show receive errors/ alarms, transmit errors/alarms, in service and loopback enabled. When these LED's are lit, this could indicate a potential issue with the physical connection of the DTI to the Network. Refer to page 67 of the installation guide for test details. For a quick test, simply take an RJ 48 plug with wire and short the Rx tip and ring (pins 1 to 4 and 2 to 5). When this plug is plugged into the RJ connector on the DTI card the alarm lights extinguish and the In service LED should light steady. This would indicate that the DTI is receiving what it is transmitting and that the T1 hardware is working properly.

If all LED’s are lit or flashing, this could indicate a potential problem with the Norstar not recognizing the DTI. Confirm that the DTI is configured and enabled for the appropriate trunk cartridge slot.

The DTI also supports Loopback testing, these tests allow you to analyze different aspects of the T1 transmission path. Each of the loopback tests are covered in detail on pages 235 through 240 in the Modular ICS Installer guide.

Another feature of the DTI card is the built in CSU. The CSU provides performance statistics and diagnostic information is stored in CSU stats under the maintenance menu. Information on accessing the CSU stats is covered in the Modular ICS Installer guide on pages 241 through 245.

The Modular ICS also has a network log that contains a record of events and alarms that are specific to the T1 network interface. This log would typically be reviewed when the customer is experiencing intermittent problems with their T1. Information about checking the log and the meaning of the alarms and events is covered in the modular ICS Installer guide on pages 216 to 227.

We have found most problems with T1 on Modular ICS occur during the initial installation. Of these problems, most are related to programming mismatches between the Norstar and the service provider. For example, Loop lines are programmed on the Norstar and the phone company is configured for E&M. Or there may be a framing mismatch with extended super frame verses super frame or line coding B8ZS verses AMI. These are just a few of the parameters but a mismatch in any of these will cause problems. So as a first step to trouble shooting we should always verify that programming in the Norstar matches what the phone company is providing.

Depending on the nature of the trouble the diagnostic process will vary. By utilizing the diagnostic capabilities of the Norstar, the source of most troubles can be isolated. However, in some instances it will be necessary to have a T1 analyzer to isolate the fault when the Norstar diagnostic capabilities have not identified the T1 problem condition. This type of test equipment may be obtained (purchased or leased) through local suppliers who specialize in communications test equipment. If your organization plans to work with T1, an analyzer would be a worth while investment. Using an analyzer can assist in quickly isolating and diagnosing troubles and save potential labor cost from extended trouble shooting exercises without T1 analyzer.



"There are those who would make you believe there are no choices left.That they have the last word and its final.To those who try the world is wide open choices many.To those who dont only death awaits you.