loop lengths on Option81 digital, analog & q.sig

[ccmjgb]

Hi,

What are the distance limitations for the following services on an Option 81 running on 22 AWG copper?

digital phone signal (M3903)?
analog phone signal (500)?

Also, looking to set-up Q.SIG between an Option 81 and a Cisco Call Manager 4-5 miles away. Can anyone please provide input on the best practices for this set-up? There will be fiber and 22 awg copper connecting the 2 sites.

Thank you for any suggestions.

ccmjgb

 

[KCFLHRC]

Digital 3500 feet at 24 gauge
Analog approx 5000 feet at 24 gauge

Your PRI is going to have to be a conditioned circuit from the telco or some kind of fiber mux to connect your 2 sites 4.5 miles away.

 

[ccmjgb]

Hi kcflhrc...

If there was a 22AWG copper cable connecting the 2 sites, could a couple of Adtran's be used to provide the point to point circuit between the Option & Cisco systems? If not Adtran... I'm assuming there are other vendors that offer equipment that model after Carrier based point to points - are you familiar with any?

... Also, there will be a fiber cable (hybrid) connecting these sites... when you mention fiber mux - I'm assuming that this will work by putting a couple transceivers (one at each end). Then from the transceivers, the PRI would terminate onto their respective systems' port...

thank you

 

[KCFLHRC]

That is waaaaaay too far for copper anything without conditioned pairs. There are other devices that are fiber connected that can break out a PRI corcuit for you but a CSU/DSU will not do it. There are fiber media converters that I have seen on line that would do the job. Also make sure your Nortel switch has the QSIG packages.

 

[phonebits]

For the QSIG trunk to the Cisco CM you can put a gateway router at the site as the Option 81c, as long as you have an IP network connection to the main Cisco site. The fiber would be a good candidate to carry Ethernet to a Cisco router next to your Meridian. Much simpler than trying to extend the T1 from site to site. Any of the 28XX and 29XX series ISR routers will do just fine.

 

[ccmjgb]

10-4...

just curious, when you mention 'conditioned pairs'... i know the term and some of the steps that are taken to get a pair conditioned: i.e. making sure that there are no taps, making sure they are balanced, minimal noise, proper grounding/shielding, high cap protectors, etc... but a brand new 100 pair 22awg cable with no other services on it may meet all the criteria except the noise that could only be tested after install. Is there anything else that would be added to the conditioning list that I missed?

There was a problem in past with the Option 81 (per passed down history) with attempts to get a fiber remote online which resulted on a copper based solution... based on this, a thought was to go with copper and have fiber as back-up

...also... how can I check if the Q.sig packages are in the Option?

 

[ccmjgb]

thank you phonebits! excellent chime in... this thought did not cross my mind... so having the router next to the Option would allow for a patch cable from the PRI port on the VR to the T1 port on the Option (no CSU needed) ... will process and report back

 

[KCFLHRC]

You will need all of these for QSIG to work in the Nortel

- Network Alternate Route Selection (NARS) package 58
- Coordinated Dialing Plan (CDP) package 59
- Flexible Numbering Plan (FNP) package 160
- QSIG Interface (QSIG) package 263
- QSIG-GF Transport (QSIGGF) package 305
- QSIG Supplementary Services (QSIG-SS) package 316
- Primary Rate Access (PRI) package 146
-
Multipurpose Serial Data Link (MSDL) package 222

 

[ccmjgb]

thank you kcflhrc

is there a specific ld that I can use to check if all these packages are in? or better yet, how is the presence of these confimed?

 

[KCFLHRC]

You go in LD 22
reg prt
type pkg
enter

 

[ccmjgb]

10-4 thank you!

 

[hawks]

did you take a look at Long Haul or Short Haul modems? i know they have some for ethernet that can go up to 4 miles or so on copper people have used in the past.

 

[ccmjgb]

Thank you kcflhrc - they are all there (minor detail: package 146 shows up as PRA not PRI - I trust there is no significant difference, correct?)

Thank you for the chime in hawks! This is very interesting! Can you suggest a model/make of long haul or short haul modem that will support a PRI? I'd like to compare the cost of a few of these vs. the Cisco voice router.

Thank you again everyone!