Changing from Paradyne 3150 CSU to Avaya 120A3 CSU

liquidvw · February 18th, 2005, 11:29 AM

Prologix G3 V11, soon to be CM2.1

I was thinking about changing out the 3 Paradyne 3150 CSU's with Avaya 120A3's in order to save some space in my teleco room. I wanted to make sure that I knew what programming changes needed to be made before I started. I think the only thing is to do is "change ds1 01AXX" and then replace 'other' with 'intergrated' on Near End CSU type. Am I correct in saying this? or am I missing something?

Thanks

stubborne · February 18th, 2005, 01:53 PM

That should do it...

corndog · March 3rd, 2005, 03:40 PM

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.
You must have a ds1 board that has a built in csu on it to use the 120. It is advised to put in a loopback device in the circuit too so Avaya can test from the pbx to the smart jack.
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

February 18th, 2005, 11:29 AM	#1 (permalink)
liquidvw PBXtech PLATINUM 300+ posts Join Date: Nov 2004 Posts: 354	Changing from Paradyne 3150 CSU to Avaya 120A3 CSU Prologix G3 V11, soon to be CM2.1 I was thinking about changing out the 3 Paradyne 3150 CSU's with Avaya 120A3's in order to save some space in my teleco room. I wanted to make sure that I knew what programming changes needed to be made before I started. I think the only thing is to do is "change ds1 01AXX" and then replace 'other' with 'intergrated' on Near End CSU type. Am I correct in saying this? or am I missing something? Thanks

February 18th, 2005, 01:53 PM	#2 (permalink)
stubborne PBXtech PLATINUM 300+ posts Join Date: Jul 2003 Posts: 401	Re: Changing from Paradyne 3150 CSU to Avaya 120A3 CSU That should do it... __________________ Stu

March 3rd, 2005, 03:40 PM	#3 (permalink)
corndog Join Date: Feb 2004 Posts: 17	Re: Changing from Paradyne 3150 CSU to Avaya 120A3 CSU 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. You must have a ds1 board that has a built in csu on it to use the 120. It is advised to put in a loopback device in the circuit too so Avaya can test from the pbx to the smart jack. 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

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