E1 interface coonection Maximum cable distance for CAT6A

[HUSSAINQCS]

an anybody tell me we are having oxe one side and avaya other side we want to connect the both pabx through E1 interface (PRA-T2) just connecting PRAT2 PBX port to avaya PBX PRA card and the distance between two PABX is 280 m with CAT6A for interconnecting two E1 interfaces cable will it work ?

[tgn]

8AL91023USAG - Ed. 01 - April 2017 - OXE System: Cables
page 118

regards...


--- back to basics... focus your eyes to the essential things... ---

[HUSSAINQCS]

Is it possible to connect OXE PRA and AVAYA PRA with CAT6A cable without any E1 modem as intermediate When the distance between both PABX around 300 m
If so what are the cable pairs for Tx & Rx

[enio.eltz]

Hi

It might work due to the quality of cable. Altough technical documentation refers to 300 m max length for this kind of interface. The quality of cable will be the key for this kind of connection. But I would not do it. Have you ever thought about fiber media converter or SIP trunk?

Best regards.

[stefanc]

Hi !

The E1 is carried over a G703 line, specs. is around 1000-1200 m , We have succesfully running a crystal over this for many years. BUT be aware of
the overvoltage in BOTH ends of the cable to protect the system and the cable.

Regards ...

/S

[tgn]

hi stefanc,

thanks for sharing!

which cable type do you use?

regards...


--- back to basics... focus your eyes to the essential things... ---

[stefanc]

Hi !

We use a twisted pair of normal telecom std (0.7 mm DC- 1Mhz with prot. shield and self sealing for evt. water damage) will do.
But we used a 10 pair cable for mechanic strenght and took 2 non adjacent pairs from the pack. It had a outer shield that we connected to the (metal)protected earth. (same point as the grounding of the lightning protectors).

Regards ...

/S

[HUSSAINQCS]

But we can connect with Both PRA by CAT6A cable (1,2 Tx pairs,4,5 Rx pairs ) oxe side and avaya side (4,5 Tx pairs,1,2 Rx pairs )where distance between two pabx more tan 280 m

[stefanc]

Yepp, indoors no problem, but outdoors , cable in the ground no no. Still it is advised to protect the cable/eq. for overvoltage. So use a CAT6E.

[stefanc]

double post..