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« New Telco Colocate  
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hussle87
Premium
join:2008-01-06
Sykesville, MD

what is this on a telephone pole

Click for full size
it looks like a steel can.

LazMan

join:2003-03-26
Angus, ON
Looks like a T1 repeater housing... Sometimes called an "AP-CAN" or Application-Can... Holds HDSL repeater cards for T1s...

Laz


DaMaGeINC
The Lan Man
Premium
join:2002-06-08
Greenville, SC
clubs:
reply to hussle87
t1 repeater


Splitpair
Premium
join:2000-07-29
Cow Towne
reply to hussle87
That is a four slot pressurized HDSLx doubler housing. Probably made by Charles Industries.

Wayne
--
If you cannot fix it with a buttset and some bennies you ain't a technician.


Splitpair
Premium
join:2000-07-29
Cow Towne
·T-Mobile US

reply to LazMan
said by LazMan See Profile :

Looks like a T1 repeater housing... Sometimes called an "AP-CAN" or Application-Can... Holds HDSL repeater cards for T1s...

Laz
Doublers not repeaters my friend a repeater housing is squareish and holds 6 or 12 slots this has 4 standard 400 mechanics slots and holds 4 HDSLx or HDSL4 doublers.

Wayne
--
If you cannot fix it with a buttset and some bennies you ain't a technician.

LazMan

join:2003-03-26
Angus, ON
When it comes to OSP, I'll gladly accept corrections from you, Wayne.

We've used cans similar for repeaters in the past - has (I think) 4 slots in a cage inside the can... Although the cover's white, not stainless...


Splitpair
Premium
join:2000-07-29
Cow Towne
·T-Mobile US


1 edit
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said by LazMan See Profile :

We've used cans similar for repeaters in the past - has (I think) 4 slots in a cage inside the can... Although the cover's white, not stainless...
It's mostly semantics ADC actually calls their doublers repeaters. Technically a repeater receives the T1 amplifies it and sends it down the span noise errors and all whereas a doubler strips the DS1 out of the incoming carrier cleans it up (error correction) puts it back on a carrier and sends it down the loop. A doubler also has the "smarts" to report span conditions to the line unit as aid in trouble shooting the span.

Wayne

There are T1 repeater housings the upper is a pole mounted pressurized 4 slot and the lower is I think the same in 12 slots.

T1 repeater »www.charlesindustries.com/main/t···ers.html

Wayne
--
If you cannot fix it with a buttset and some bennies you ain't a technician.


AMD Phreak
Premium
join:2003-12-14
reply to hussle87
How is the enclosure pressurized?

Is it done at the CO end of the span?

SuperSync
Five Star
Premium
join:2002-01-12
clubs:
AFAIK,

Each case is pressurized locally. To about 6-8 PSI to keep out moisture.

I've never seen one feeding off a pressurized section of cable.


cypherstream
Looking forward to the future of things.
Premium,MVM
join:2004-12-02
Reading, PA
clubs:


1 edit
reply to Splitpair
Wow, thanks Wayne.

I always wondered what those white square boxes were. I figured they were repeaters for some sort of data service from the telco (DSL or T1s). I also see those can's, both in stainless and white. Sometimes the white ones have numbers written on them (looks like a simple sharpie marker wrote on it).

We have a pairgain HDSL unit at work that feeds an Adtran CSU/DSU. We have 8 channels for data and 16 channels for voice. We had problems in the past and the telco guys were in with some fancy Sunrise Telecom meters. Everythings good now though.


Splitpair
Premium
join:2000-07-29
Cow Towne
·T-Mobile US

reply to SuperSync
said by SuperSync See Profile :

AFAIK,

Each case is pressurized locally. To about 6-8 PSI to keep out moisture.

I've never seen one feeding off a pressurized section of cable.
I have found a few in manholes (not BST/att) that where pressurized via. the stub vs. an airpipe.

Wayne

--
If you cannot fix it with a buttset and some bennies you ain't a technician.
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