PRI TN2313 1

[bobsou]

CAn anyone explain what this card is ? it is the same as a TN767

 

[lopes1211]

This is from the System Description manual:

TN2313AP DS1 Interface (24-Channel)
The TN2313AP DS1 port board interfaces a DS1 trunk to the switch backplane via port
slots that are standard for DEFINITY products. The TN2313AP is compatible with
previous 24-channel DS1 circuit packs, including the TN464F (V19 and below), the
TN2464 (V19 and below), and the TN767E DS1, except that it does not provide for
packet adjunct capabilities. The TN2313AP supports a variety of applications, including
networking of DEFINITY switches, international trunk types, video teleconferencing, and
wideband data transmission.
The TN2313AP DS1 interface can be configured for 24-channel, 1.544 Mbps. The
TN2313 can supply two 8-Khz reference signals to the switch backplane for optional use
by the tone/clock board in synchronizing the system clock to the received line clock.
The TN2313AP is firmware downloadable.

-CL

 

[4merAvaya]

You can only use the TN2313 packs in V8 and above switches.

Kevin

 

[schned99]

The D-Channel signaling on the TN2313 and TN767 uses the TDM bus. On the TN464, the packet bus is used. This is important information if you have more than 10 PRI circuits. The TDM bus will only support 10 circuit packs using D-channel signaling in an SI port network. As opposed to 30 Packet Bus D-channels in the same port network.

 

[PBXJay]

I have 4 tn464 cards and 4 tn767 cards. One vendor was telling me if I added 2 more t1 lines my pbx would be over subscribed. My other vendor was saying that our portnetwork is fine. Is the TDM bus vs the Packet the reason why vendor 2 would say that?
Thanks
J

 

[jimbojimbo]

This issue of 'over-subscribed' would be related to the TDM bus and not an issue related to the T-1 cards. A Definity has 512 time slots on the TDM bus. Of these, 484 are usable for conversations (used to be 483). The remaining time slots are used for control, dedicated tones, etc. That means you can have 242 simultaneous conversations (full duplex conversations take up 2 time slots). Do the math from here. If you have 10 ISDN PRI (not in an NFAS configureation) you could have up to 230 conversations. This only leaves 12 internal conversations (ie station-to-station, vm, etc). I don't normally recommend over 8 T-1's. The only exception I would make to this would be a switch being used mostly for tandem calls. Here I am referencing calls to the PSTN. Calls on a T-1 to a VM or IVR I would not count toward my network total. Bottom Line, before randomly adding to your switch, you need to evaluate the traffic.
I would look a little harder at your vendor who wasn't concerned about the number of T-1's.

James Middleton
ACSCI/ACSCD/MCSE
Xeta Technologies
jim.middleton@xeta.com

 

[PBXJay]

Thanks for the imput Jim

 

[mmcalli]

Can someone provide a definitive answer as to whether the 120A CSU can be used with the TN2313AP? If not, then what CSU is required?
Extra points for technical references!
Thanks,

 

[orypecos]

120A Channel Service Unit Module
The 120A channel service unit (CSU) module connects to either a TN464E/F/GP, a
TN2464/TN2464BP, a TN2313/TN2313AP, or a TN767D/E DS1 circuit pack on one end.
The other end connects to the network interface smart jack. The 120A is powered from
the +5 VDC port carrier power supply and uses a maximum of 1.2 Watts.
In combination with the DS1 circuit pack, it provides the essential functions of external
CSUs. The TN464/767 and switch administration support all framing and line coding
options.
The 120A is small, a little larger than a wallet, is easier to install than an external CSU,
and does not require any option switch settings or DS1 cable.
Vintage 2 of the 120A CSU module (the 120A2) provides enhancements to support the
payload loopback function available when the ESF framing format is selected. This 700A
loopback jack is controlled from the network side using the data link provided by the ESF
framing format. This provides a loopback of data back to the network and operates as
defined in AT&T TR54016-1989.
ADJUNCT - B
J 4
Cabinets, Carriers, and Circuit Packs
DEFINITY Adjuncts
DEFINITY Enterprise Communications Server Release 9
System Description 555-233-200
Issue 2.1
March 2001

Da-vi'do
P.S. For the best response to a question, read FAQ222-2244. Also give the type & version of your voice mail & pbx & preview your post to make sure it is complete & understandable. Please answer all questions so that I may have the info to assist you. Leaving a post on how you fixed the problem will also be appreciated.

 

[orypecos]

The 120 is actually not a csu, the csu is built on the ds1 board. The 120 has only got a bunch of 30 cent resisters in it and a couple of other things. The 120 doesn't allow conversion from the pbx and network settings like some CSU do.

 

[mmcalli]

Thanks orypecos,
Hmmm, not a CSU huh....I learn something new evey time I read these forums.
I figured (and counted on) it working--just thought I'd check before installing and bringing down the switch :>)

 

[NX01]

The TN767's have been discountinued and are only used with older systems. Once you upgrade, they will sell you the TN2313's. There is also a resent firmware for the TN2313 on Avaya's website...Feb 05. I believe the TN2313 is kinda of a all in one for the TN464 and TN767's...makes sense.

In the future everything will work...