TN464gp to Ascend Multiband Plus for Video. 2

[Dustinn3]

I'm trying to setup a TN464gp to an Ascend Multiband Plus for Video. We are using a G3SI CM2.0. Both the switch and imux are setup for isdn-pri, but the la light just blinks on the Multiband and the d channel won't come up. I'm using a 120a3 csu. The circuits are setup as follows:

DS1 CIRCUIT PACK
Location: 01C15 Name: Video
Bit Rate: 1.544 Line Coding: b8zs
Line Compensation: 1 Framing Mode: esf
Signaling Mode: isdn-pri
Connect: network
TN-C7 Long Timers? n Country Protocol: 1
Interworking Message: PROGress Protocol Version: a
Interface Companding: mulaw CRC? a
Idle Code: 11111111
DCP/Analog Bearer Capability: 3.lkBz
Slip Protectiao? n Near-end CSU Type: integrated
Echo Cancellation? n

ESF DATA LINK OPTIONS
Network Management Protocal: tabs
Send ANSI-Tl.403 One-Second Performance Reports?n
Far-end CSU Address: b
INTEGRATED CSU OPTIONS
Transmit LBO: 0db
Receive ALBO: 26db
Upon DTE LOS: loopback
CPE L00PBACK JACK OPTIONS
Supply CPE Loopback Jack Power?n


SIGNALING GROUP Group Number: 50 Group Type: isdn-pri Associated Signaling? y Primary D-Channel: 01C1524 Max number of NCA TSC: 0 Max number of CA TSC: 0 Trunk Group for NCA TSC: Trunk Group for Channel Selection: 50 X-Mobility/Wireless Type: NONE Supplementary Service Protocol: a

TRUNK GROUP Group Number: 50 Group Type: isdn CDR Reports: y Group Name: VIDEO-TO MUX COR: 50 TN: 1 TAC: 715 Direction: two-way Outgoing Display? n Carrier Medium: PRI/BRI Dial Access? n Busy Threshold: 99 Night Service: Queue Length: 0 Service Type: cbc Auth Code? n TestCall ITC: rest Usage Alloc? n Far End Test Line No: TestCall BCC: 4 TestCall Service: TRUNK PARAMETERS Codeset to Send Display: 6 Codeset to Send National IEs: 6 Max Message Size to Send: 260 Charge Advice: none Supplementary Service Protocol: a Digit Handling (in/out): enbloc/enbloc Trunk Hunt: cyclical Digital Loss Group: 13 Calling Number - Delete: Insert: Numbering Format: Bit Rate: 1200 Synchronization: async Duplex: full Disconnect Supervision - In? y Out? n Answer Supervision Timeout: 0

TRUNK FEATURES ACA Assignment? n Measured: none Wideband Support? n Maintenance Tests? y Data Restriction? n NCA-TSC Trunk Member: Send Name: n Send Calling Number: n Used for DCS? n Suppress # Outpulsing? n Outgoing Channel ID Encoding: preferred UUI IE Treatment: service-provider Replace Restricted Numbers? n Replace Unavailable Numbers? n Send Connected Number: n Send UUI IE? y Send UCID? n Send Codeset 6/7 LAI IE? y Ds1 Echo Cancellation? n US NI Delayed Calling Name Update? n SBS? n Network (Japan) Needs Connect Before Disconnect? n

TRUNK GROUP Administered Members (min/max): 1/6 Total Administered Members: 6 GROUP MEMBER ASSIGNMENTS Port Code Sfx Name Night Sig Grp 1: 01C1501 TN464 G 50 2: 01C1502 TN464 G 50 3: 01C1503 TN464 G 50 4: 01C1504 TN464 G 50 5: 01C1505 TN464 G 50 6: 01C1506 TN464 G 50 7: 8: 9:

The Ascend is setup as:

Sig Mode: ISDN
Switch Type: AT&T
Framing Mode: ESF
Encoding: B8ZS
FDL: AT&T
Length: 1-133
ch 1-6: Switched
Ch 24: D-Channel

Any ideas?

Thanks,

 

[highfive]

On the DS1 circuit pack settings you may want to try changing the "Connect" field to "Host" or "Line Side"

 

[lopes1211]

Definitely need it set to "line-side" to provide timing for the video unit.

-CL

 

[Dustinn3]

I just changed it to line-side, but the signalling group still shows out of service. Any other ideas?

 

[lopes1211]

Sorry, you also need a crossover T-1 cable between the Ds-1 card's CSU and the imux. TX and RX need to be crossed.

-CL

 

[Dustinn3]

I tried replacing the cable with a crossover cable as well as a standard cat 5e cable. Neither one gives a connection at all. The cable I have has a db25 connection in the middle. It's the only one that even gives me a green light. The system used to work as configured, but was disconnected from the Definity in a vendor change. The manual says the physical connection is fine if I have a blinking light on LA, but something isn't configured right.


Here's the answer from the manual, but I don't understand what it's talking about with a non-inverted d channel.

Problem: This is a PRI Line and the LA LED blinks.
A blinking LA LED means that the physical configuration of the PRI line is correct but
the signaling channel—the D channel— is not communicating with the WAN.
Verify with your carrier representative that the D channel is channel 24, or whatever has
been configured in the Line Profile.
If the channel number is correct, check the value of the Line Encoding Line Profile
parameter. When B8ZS encoding is used, a non-inverted D channel is established. If
AMI encoding is selected, an inverted D channel is established. Check the line translations
provided by your carrier representative and set the line encoding to match the inversion
requirements.
If neither your WAN interface nor Multiband Plus is equipped with a CSU, or if you
have chosen the wrong line length or buildout Line Profile parameter values, this error
condition can result.
Finally, an ISDN PRI line is very much like a T1 line in that, if no equipment has been
plugged into the line for a short period of time, namely 5 to 10 minutes, the D channel is
taken out of service. You might need to contact your carrier to put the D channel back
into service.

I've got the d setup as 24 and all the translations are the same, but something must be missing.

Thanks,

 

[lopes1211]

You are using a crossover DS-1 cable right?????? It's not the same as a crossover ethernet.

1 to 4
2 to 5
4 to 1
5 to 2

on an 8 pair cable.

-CL

 

[lopes1211]

oops 4 pair / 8 wire cable


-CL

 

[Dustinn3]

Thanks for the info on the ds1 crossover, but it didn't work. I finally played around with it enough and changed the protocol to b, must be AT&T, and it started working. I'd changed it before and it didn't work, but must've been the combination of changing it to line-side as well. Thanks for the help!

 

[highfive]

If the signaling group comes up but the channels won't you will need to change the Supplementary Service Protocol on the trunk group also.

Protocol "b" is for National ISDN-2 usually for connecting to a LEC type switch "a" is AT&T custom usually 5E/DMS200 type switches.