2-Wire E&M on Norstar?

[hawkflorida]

I have an Option 11 connected back to back with an MICS 5.0 via an E&M card using 4-Wire Type II signaling. I'd like to find out if you can do 2-Wire E&M with the wiring information included if possible. I haven't seen anything discussing it in the Norstar books, which leads me to believe it can't be done. It's the E&M senario I'm after, not that there is a better way to do it. Thanks for the help. darnold@americaii.com

 

[curlycord]

I dont think it's possible somehow but curious to know if somebody else has mcgiverd sumthin like that. ~Will Nortel soon be NoTel??~

 

[executone]

I do not think the Norstar excepts two wire E&M.

Good Luck!!

 

[Roldan]

not to my knowledge either

 

[westcoaster]

the norstar only accepts 8 wire e&m
if you upgrade the norstar to 6.0 (when it comes out ) you will be able to link the norstar with the m1 through mcdn. if I'm not mistaken you will also only need one voicemail.

 

[westcoaster]

the physical link is a pri with 32 voice channels.

 

[DeeBeam]

Thanks, redhawk. The second question is if the 8-conductor E&M trunks can be dry pairs, or if the CO needs to provide any signaling. Don't the E&M cards do the signalling between the systems?
And finally, does anybody know of a working install in SBC area?? They maintain there's no such thing as 8-conductor E&M.
Thanks all.

 

[hawkflorida]

More normally termed 4-wire or 2-wire, I think it's just semantics darnold@americaii.com

 

[DeeBeam]

Here the way we got it to work in SBC/Southwestern Bell country. Please feel free to ask if you have any questions:


ORDERING E&M TIE TRUNKS
FOR NORSTAR MICS
IN SBC/SOUTHWESTERN BELL TERRITORY


Ordering the circuits
v You need to order one 8-wire circuit for every port to be used on the E&M card.
v Require the following installation from the phone company:
Ø Specify both locations as Location A (the main site, or master site), and Location Z (the remote site or slave site) with physical service addresses
Ø Order E&M Tie Trunk Type II 424. They call this a ‘4-wire’ circuit referring to the number of cables at the demark. Type II, however, refers to the 8-wires at the Teltrend box and the punch down block breaking out of it (see below) for all the signal leads necessary. The Norstar E&M cards need all 8 wires / signals in the exact sequence as below to work.
Ø Interface needs to be RJ2HX. This is very important, double-check the interface and the number of wires as soon as you get there. This is North American standard interface. If necessary, force the phone company to abide to its own specifications
Ø Facility Interface Code (FIC) TL32M
Ø One Teltrend box Model 4305 Issue 2 with toggle switches set to:
§ Type II
§ DX1,
§ Normal polarity
Ø 8-wire (4-pair) with this lead pin out on the blocks at both locations:
§ White T
§ Blue R
§ White T1
§ Orange R1
§ White E
§ Green SG
§ White M
§ Brown SB
Ø The distribution blocks should be punched down exactly the same as per color code at both locations

Setting up the Norstar
From the E&M card on the trunk module, punch down a 4-pair cable the same sequence as above. Once the circuit is in, cross-connect the leads from the phone company’s block to yours straight through one by one, so that the color code should match the signal sequence, that is white/blue = T R, white/orange = T1 R1, white/green = E SG, white/brown = M SB.
Both sites need to be wired the same straight through way, and then the Teltrend box will do the battery reversal.


Program the Norstar MICS as per manual instructions. When the circuits are good, you should get a stuttered dial tone once you dial the access code.

If you do not get the stuttered dial tone, listen to whether the system clicks trying to seize the circuit. If it does, but there’s still dead air, the problem is on the circuit.

If it says something like ‘no lines available’ although you know nobody is on, look at the Teltrend box and see if the E and M lead lights are on, blinking or cycling through. They should be off if installed correctly, and should only light up when the request for service comes from the phone system (access code). If they are on or blinking or cycling, have the phone company check and correct the signal leads for reversal on site.

Request a vendor meet with 2 phone company technicians and troubleshoot with them present. Do not let them go until it’s done.

This is not a very common circuit, so the phone company may have a little difficulty understanding what needs to be done.

Below a link to a standards glossary:

http://www.apostolicpentecostal.org/depts/av/glossary.html